Tasks Details
easy
1.
Triangle
Determine whether a triangle can be built from a given set of edges.
Task Score
93%
Correctness
90%
Performance
100%
An array A consisting of N integers is given. A triplet (P, Q, R) is triangular if 0 ≤ P < Q < R < N and:
- A[P] + A[Q] > A[R],
- A[Q] + A[R] > A[P],
- A[R] + A[P] > A[Q].
For example, consider array A such that:
A[0] = 10 A[1] = 2 A[2] = 5 A[3] = 1 A[4] = 8 A[5] = 20Triplet (0, 2, 4) is triangular.
Write a function:
function solution(A);
that, given an array A consisting of N integers, returns 1 if there exists a triangular triplet for this array and returns 0 otherwise.
For example, given array A such that:
A[0] = 10 A[1] = 2 A[2] = 5 A[3] = 1 A[4] = 8 A[5] = 20the function should return 1, as explained above. Given array A such that:
A[0] = 10 A[1] = 50 A[2] = 5 A[3] = 1the function should return 0.
Write an efficient algorithm for the following assumptions:
- N is an integer within the range [0..100,000];
- each element of array A is an integer within the range [−2,147,483,648..2,147,483,647].
Copyright 2009–2025 by Codility Limited. All Rights Reserved. Unauthorized copying, publication or disclosure prohibited.
Solution
Programming language used JavaScript
Time spent on task 11 minutes
Notes
not defined yet
Code: 10:57:33 UTC,
java,
autosave
Code: 10:57:53 UTC,
js,
autosave
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
// mergeSort ->
// 분할
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
console.log(divided)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
debugger;
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 10:58:00 UTC,
js,
verify,
result: Failed
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
// mergeSort ->
// 분할
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
console.log(divided)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
debugger;
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Analysis
expand all
Example tests
example
example, positive answer, length=6
example, positive answer, length=6
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 2 ], [ 5 ], [ 1 ], [ 8 ], [ 20 ] ]
example1
example, answer is zero, length=4
example, answer is zero, length=4
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 50 ], [ 5 ], [ 1 ] ]
Code: 10:58:13 UTC,
js,
autosave
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
console.log(divided)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
debugger;
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 10:58:17 UTC,
js,
verify,
result: Failed
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
console.log(divided)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
debugger;
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Analysis
expand all
Example tests
example
example, positive answer, length=6
example, positive answer, length=6
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 2 ], [ 5 ], [ 1 ], [ 8 ], [ 20 ] ]
example1
example, answer is zero, length=4
example, answer is zero, length=4
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 50 ], [ 5 ], [ 1 ] ]
Code: 10:58:32 UTC,
js,
verify,
result: Failed
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
console.log(divided)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Analysis
expand all
Example tests
example
example, positive answer, length=6
example, positive answer, length=6
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 2 ], [ 5 ], [ 1 ], [ 8 ], [ 20 ] ]
example1
example, answer is zero, length=4
example, answer is zero, length=4
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.076 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' foundstdout:
[ [ 10 ], [ 50 ], [ 5 ], [ 1 ] ]
Code: 10:58:54 UTC,
js,
autosave
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 10:58:57 UTC,
js,
verify,
result: Failed
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Analysis
expand all
Example tests
example
example, positive answer, length=6
example, positive answer, length=6
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.072 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' found
example1
example, answer is zero, length=4
example, answer is zero, length=4
✘
RUNTIME ERROR
tested program terminated with exit code 1
tested program terminated with exit code 1
1.
0.072 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
Invalid result type, integer expected, 'object' found
Code: 10:59:06 UTC,
js,
autosave
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 10:59:16 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
debugger;
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 11:00:43 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
deb
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 11:00:53 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
return finalMerged
}
Code: 11:01:34 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
rfinalMerged
}
Code: 11:01:55 UTC,
js,
autosave
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
finalMerged
for(let i=0; i<final)
}
Code: 11:02:11 UTC,
js,
autosave
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
finalMerged
for(let i=0; i<finalMerged.length; i++){
if(A[i])
}
}
Code: 11:02:21 UTC,
js,
autosave
12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
finalMerged
for(let i=0; i<finalMerged.length-2; i++){
if(A[i]+A[i+1])
}
}
Code: 11:02:43 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
for(let i=0; i<finalMerged.length-2; i++){
if(A[i]+A[i+1]>A[i+2]) return 1;
}
return 0;
}
Code: 11:02:44 UTC,
js,
verify,
result: Failed
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
for(let i=0; i<finalMerged.length-2; i++){
if(A[i]+A[i+1]>A[i+2]) return 1;
}
return 0;
}
Analysis
Code: 11:03:13 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Code: 11:03:14 UTC,
js,
verify,
result: Failed
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Analysis
Code: 11:08:13 UTC,
js,
autosave
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)[]
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Code: 11:08:17 UTC,
js,
verify,
result: Passed
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)[0]
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Analysis
Code: 11:08:20 UTC,
js,
verify,
result: Passed
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)[0]
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Analysis
Code: 11:08:22 UTC,
js,
final,
score: 
93
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');
function solution(A) {
// write your code in JavaScript (Node.js 8.9.4)
const divided = []
const divideArr = (arr)=>{
if(arr.length===1){
divided.push(arr);
return arr;
}
const mid = parseInt(arr.length/2)
const first = arr.slice(0,mid)
const second = arr.slice(mid)
divideArr(first)
divideArr(second)
}
divideArr(A)
let merged = divided.slice(0)
const mergeAB = (a,b)=> {
if(b===undefined) return a;
let length = a.length+b.length
let mergeArr = []
let aCompare = a[0]
let bCompare = b[0]
let bIndex = 0;
let aIndex = 0;
for(let i =0; i<length; i++){
if(aCompare>bCompare){
mergeArr[i]=bCompare
bIndex +=1
if(bIndex===b.length){
return mergeArr = mergeArr.concat(a.slice(aIndex))
}
else{
bCompare=b[bIndex]
}
}
else{
mergeArr[i]=aCompare
aIndex +=1
if(aIndex===a.length){
return mergeArr = mergeArr.concat(b.slice(bIndex))
}
else{
aCompare=a[aIndex]
}
}
}
return mergeArr
}
const mergeArr = (mergedArr)=> {
if(mergedArr.length===1) return mergedArr
let newMergeArr = []
for(let i =0; i<mergedArr.length; i+=2){
newMergeArr.push(mergeAB(mergedArr[i], mergedArr[i+1]))
}
return mergeArr(newMergeArr)
}
const finalMerged = mergeArr(merged)[0]
for(let i=0; i<finalMerged.length-2; i++){
if(finalMerged[i]+finalMerged[i+1]>finalMerged[i+2]) return 1;
}
return 0;
}
Analysis summary
The following issues have been detected: runtime errors.
For example, for the input [] the solution terminated unexpectedly.
Analysis
Detected time complexity:
O(N*log(N))
expand all
Correctness tests
1.
0.088 s
RUNTIME ERROR,
tested program terminated with exit code 1
stderr:
RangeError: Maximum call stack size exceeded at divideArr (solution.js:9:19) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5) at divideArr (solution.js:17:5)
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.080 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.112 s
OK
1.
0.076 s
OK
2.
0.072 s
OK
3.
0.076 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
1.
0.072 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.076 s
OK
5.
0.072 s
OK
6.
0.072 s
OK
expand all
Performance tests
1.
0.128 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.068 s
OK
6.
0.072 s
OK
1.
0.220 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.068 s
OK
6.
0.072 s
OK
1.
0.372 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.068 s
OK
5.
0.068 s
OK
6.
0.068 s
OK
1.
0.376 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.068 s
OK
6.
0.072 s
OK
1.
0.372 s
OK
2.
0.072 s
OK
3.
0.072 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.068 s
OK
1.
0.352 s
OK
2.
0.072 s
OK
3.
0.068 s
OK
4.
0.072 s
OK
5.
0.072 s
OK
6.
0.072 s
OK