Tasks Details
medium
Find the smallest positive integer that does not occur in a given sequence.
Task Score
100%
Correctness
100%
Performance
100%
This is a demo task.
Write a function:
function solution(A);
that, given an array A of N integers, returns the smallest positive integer (greater than 0) that does not occur in A.
For example, given A = [1, 3, 6, 4, 1, 2], the function should return 5.
Given A = [1, 2, 3], the function should return 4.
Given A = [−1, −3], the function should return 1.
Write an efficient algorithm for the following assumptions:
- N is an integer within the range [1..100,000];
- each element of array A is an integer within the range [−1,000,000..1,000,000].
Copyright 2009–2025 by Codility Limited. All Rights Reserved. Unauthorized copying, publication or disclosure prohibited.
Solution
Programming language used JavaScript
Time spent on task 12 minutes
Notes
not defined yet
Code: 09:41:04 UTC,
java,
autosave
Code: 09:42:15 UTC,
js,
autosave
Code: 09:42:45 UTC,
js,
autosave
Code: 09:42:57 UTC,
js,
autosave
Code: 09:43:09 UTC,
js,
autosave
Code: 09:43:22 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 &&b typeof resultArray[A[i]] == 'undefined')
}
}
Code: 09:43:45 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 &&b typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] =
}
}
}
Code: 09:43:56 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i
}
}
}
Code: 09:44:07 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
}
Code: 09:44:55 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
}
Code: 09:45:22 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
for (let i = 1; i)
}
Code: 09:45:46 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
for (let i = 1; i < A.length; i++) {
}
}
Code: 09:46:08 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 1; i < A.length; i++) {
}
}
Code: 09:46:19 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
if A.length
let i;
for (i = 1; i < A.length; i++) {
}
}
Code: 09:46:32 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 1; i < A.length; i++) {
}
return i
}
Code: 09:46:48 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 1; i < A.length; i++) {
if A[i] ==
}
return i
}
Code: 09:47:08 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 1; i < A.length; i++) {
if (A[i] == 'undefined') {
break;
}
}
return i
}
Code: 09:47:18 UTC,
js,
verify,
result: Failed
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 1; i < A.length; i++) {
if (A[i] == 'undefined') {
break;
}
}
return i;
}
Analysis
expand all
Example tests
1.
0.076 s
WRONG ANSWER,
got 6 expected 5
1.
0.076 s
WRONG ANSWER,
got 3 expected 4
1.
0.072 s
WRONG ANSWER,
got 2 expected 1
Code: 09:47:39 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = ; i < A.length; i++) {
if (A[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:47:43 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < A.length; i++) {
if (A[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:47:45 UTC,
js,
verify,
result: Failed
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < A.length; i++) {
if (A[i] == 'undefined') {
break;
}
}
return i;
}
Analysis
expand all
Example tests
1.
0.116 s
WRONG ANSWER,
got 6 expected 5
1.
0.116 s
WRONG ANSWER,
got 3 expected 4
1.
0.112 s
WRONG ANSWER,
got 2 expected 1
Code: 09:48:09 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < A.length; i++) {
if (resultArr[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:48:11 UTC,
js,
autosave
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < A.length; i++) {
if (resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:48:18 UTC,
js,
verify,
result: Failed
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Analysis
expand all
Example tests
1.
0.068 s
WRONG ANSWER,
got 7 expected 5
1.
0.068 s
OK
1.
0.068 s
WRONG ANSWER,
got 0 expected 1
Code: 09:48:40 UTC,
js,
verify,
result: Failed
// 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)
let resultArray = [];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Analysis
expand all
Example tests
1.
0.068 s
WRONG ANSWER,
got 0 expected 5
1.
0.068 s
WRONG ANSWER,
got 0 expected 4
1.
0.068 s
WRONG ANSWER,
got 0 expected 1
Code: 09:48:52 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:48:58 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Analysis
Code: 09:49:28 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:49:58 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:50:23 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
Analysis
expand all
User tests
1.
0.068 s
OK
function result: 12
function result: 12
1.
0.068 s
OK
function result: 2
function result: 2
1.
0.068 s
OK
function result: 3
function result: 3
1.
0.104 s
OK
function result: 7
function result: 7
Code: 09:50:39 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:50:52 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
User test case 5:
[1, 1, 1, 1, 1, 1, 1, 2, 4, 5, 3, 7, 8]
Analysis
Code: 09:51:01 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:51:12 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:51:24 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:51:33 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
User test case 5:
[1, 1, 1, 1, 1, 1, 1, 2, 4, 5, 3, 7, 8]
User test case 6:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]
Analysis
expand all
User tests
1.
0.072 s
OK
function result: 12
function result: 12
1.
0.076 s
OK
function result: 2
function result: 2
1.
0.072 s
OK
function result: 3
function result: 3
1.
0.072 s
OK
function result: 7
function result: 7
1.
0.076 s
OK
function result: 6
function result: 6
1.
0.076 s
OK
function result: 100
function result: 100
Code: 09:52:06 UTC,
js,
autosave
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Code: 09:52:11 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
User test case 5:
[1, 1, 1, 1, 1, 1, 1, 2, 4, 5, 3, 7, 8]
User test case 6:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]
User test case 7:
[1]
Analysis
expand all
User tests
1.
0.068 s
OK
function result: 12
function result: 12
1.
0.068 s
OK
function result: 2
function result: 2
1.
0.068 s
OK
function result: 3
function result: 3
1.
0.068 s
OK
function result: 7
function result: 7
1.
0.068 s
OK
function result: 6
function result: 6
1.
0.068 s
OK
function result: 100
function result: 100
1.
0.068 s
OK
function result: 2
function result: 2
Code: 09:52:22 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
User test case 5:
[1, 1, 1, 1, 1, 1, 1, 2, 4, 5, 3, 7, 8]
User test case 6:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]
User test case 7:
[1]
User test case 8:
[0]
Analysis
expand all
User tests
1.
0.068 s
OK
function result: 12
function result: 12
1.
0.068 s
OK
function result: 2
function result: 2
1.
0.068 s
OK
function result: 3
function result: 3
1.
0.068 s
OK
function result: 7
function result: 7
1.
0.068 s
OK
function result: 6
function result: 6
1.
0.068 s
OK
function result: 100
function result: 100
1.
0.072 s
OK
function result: 2
function result: 2
1.
0.068 s
OK
function result: 1
function result: 1
Code: 09:52:48 UTC,
js,
verify,
result: Passed
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
User test case 1:
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11]
User test case 2:
[0, 1, -1, -2, -3, -4]
User test case 3:
[1, 1, 1, 1, 1, 1, 1, 2]
User test case 4:
[2, 3, 1, 4, 6, 5, 8, 9]
User test case 5:
[1, 1, 1, 1, 1, 1, 1, 2, 4, 5, 3, 7, 8]
User test case 6:
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]
User test case 7:
[1]
User test case 8:
[0]
Analysis
expand all
User tests
1.
0.072 s
OK
function result: 12
function result: 12
1.
0.072 s
OK
function result: 2
function result: 2
1.
0.072 s
OK
function result: 3
function result: 3
1.
0.072 s
OK
function result: 7
function result: 7
1.
0.072 s
OK
function result: 6
function result: 6
1.
0.072 s
OK
function result: 100
function result: 100
1.
0.072 s
OK
function result: 2
function result: 2
1.
0.072 s
OK
function result: 1
function result: 1
Code: 09:52:51 UTC,
js,
final,
score:
100
// 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)
let resultArray = [0];
for (let i = 0; i<A.length; i++) {
if (A[i] >= 0 && typeof resultArray[A[i]] == 'undefined') {
resultArray[A[i]] = i;
}
}
let i;
for (i = 0; i < resultArray.length; i++) {
if (typeof resultArray[i] == 'undefined') {
break;
}
}
return i;
}
Analysis summary
The solution obtained perfect score.
Analysis
Detected time complexity:
O(N) or O(N * log(N))
expand all
Correctness tests
1.
0.068 s
OK
2.
0.068 s
OK
3.
0.068 s
OK
4.
0.068 s
OK
1.
0.068 s
OK
2.
0.068 s
OK
3.
0.068 s
OK
1.
0.068 s
OK
2.
0.068 s
OK
1.
0.068 s
OK
2.
0.068 s
OK
1.
0.068 s
OK
expand all
Performance tests
1.
0.080 s
OK
2.
0.080 s
OK
3.
0.088 s
OK
1.
0.144 s
OK
1.
0.120 s
OK
2.
0.120 s
OK
1.
0.108 s
OK