Test results - Codility

Tasks Details

easy

1. PermCheck

Check whether array A is a permutation.

Task Score

100%

Correctness

100%

Performance

100%

A non-empty array A consisting of N integers is given.

A permutation is a sequence containing each element from 1 to N once, and only once.

For example, array A such that:

A[0] = 4 A[1] = 1 A[2] = 3 A[3] = 2

is a permutation, but array A such that:

A[0] = 4 A[1] = 1 A[2] = 3

is not a permutation, because value 2 is missing.

The goal is to check whether array A is a permutation.

Write a function:

function solution(A);

that, given an array A, returns 1 if array A is a permutation and 0 if it is not.

For example, given array A such that:

A[0] = 4 A[1] = 1 A[2] = 3 A[3] = 2

the function should return 1.

Given array A such that:

A[0] = 4 A[1] = 1 A[2] = 3

the function should return 0.

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..1,000,000,000].

Solution

Programming language used JavaScript

Time spent on task 12 minutes

Notes

not defined yet

Code: 09:55:51 UTC, java, autosave

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// you can also use imports, for example:
// import java.util.*;

// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");

class Solution {
    public int solution(int[] A) {
        // write your code in Java SE 8
    }
}

Code: 09:55:56 UTC, js, autosave

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// 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)
}

Code: 09:56:13 UTC, js, autosave

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// 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 = [];
    
}

Code: 09:56:42 UTC, js, autosave

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// 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++) {
        
    }
    
}

Code: 09:56:52 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

// 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])
    }
    
}

Code: 09:57:20 UTC, js, autosave

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1 2 3 4 5 6 7 8 9 10 11

// 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] > )
    }
    
}

Code: 09:57:31 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

// 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] > A.length)
    }
    
}

Code: 09:58:01 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

// 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] > A.length || typeof resultArray[A[i]] !== )
    }
    
}

Code: 09:58:18 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        }
    }
    
}

Code: 09:58:30 UTC, js, autosave

show code in pop-up

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// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else 
    }
    
}

Code: 09:58:40 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            
        }
    }
    
}

Code: 09:58:59 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = i
        }
    }
    
}

Code: 09:59:22 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true
        }
    }
    
    
}

Code: 09:59:52 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true
        }
    }
    for (let i = 0; i < result)
    
}

Code: 10:00:07 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        
    }
    
}

Code: 10:00:36 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
    
}

Code: 10:00:43 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
    
}

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

Code: 10:01:06 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
    
}

Code: 10:01:27 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
    
}

Code: 10:01:29 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
    
}

User test case 1:

[1, 1, 2]

User test case 2:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 3:

[1, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 4:

[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]

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

expand all User tests

▶

test_data1

✔

0.068 s

OK
function result: 0

▶

test_data2

✔

0.068 s

OK
function result: 1

▶

test_data3

✔

0.068 s

OK
function result: 0

▶

test_data4

✔

0.068 s

OK
function result: 1

Code: 10:02:49 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:02:52 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

User test case 1:

[1, 1, 2]

User test case 2:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 3:

[1, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 4:

[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]

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.072 s

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 0

▶

test_data2

✔

0.068 s

OK
function result: 1

▶

test_data3

✔

0.068 s

OK
function result: 0

▶

test_data4

✔

0.072 s

OK
function result: 1

Code: 10:03:03 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:03:34 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:04:04 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:04:16 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:06:25 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:06:55 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Code: 10:07:02 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

User test case 1:

[1, 1, 2]

User test case 2:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 3:

[1, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 4:

[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, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199]

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

expand all User tests

▶

test_data1

✔

0.068 s

OK
function result: 0

▶

test_data2

✔

0.068 s

OK
function result: 1

▶

test_data3

✔

0.068 s

OK
function result: 0

▶

test_data4

✔

0.068 s

OK
function result: 1

Code: 10:07:18 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

User test case 1:

[1, 1, 2]

User test case 2:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 3:

[1, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 4:

[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, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199]

User test case 5:

[100, 1, 2, 3, 4]

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

expand all User tests

▶

test_data1

✔

0.068 s

OK
function result: 0

▶

test_data2

✔

0.068 s

OK
function result: 1

▶

test_data3

✔

0.068 s

OK
function result: 0

▶

test_data4

✔

0.068 s

OK
function result: 1

▶

test_data5

✔

0.068 s

OK
function result: 0

Code: 10:07:29 UTC, js, verify, result: Passed

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

User test case 1:

[1, 1, 2]

User test case 2:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 3:

[1, 3, 4, 5, 6, 7, 8, 9, 10]

User test case 4:

[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, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193, 194, 195, 196, 197, 198, 199]

User test case 5:

[100, 1, 2, 3, 4]

Analysis

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

expand all User tests

▶

test_data1

✔

0.068 s

OK
function result: 0

▶

test_data2

✔

0.072 s

OK
function result: 1

▶

test_data3

✔

0.068 s

OK
function result: 0

▶

test_data4

✔

0.072 s

OK
function result: 1

▶

test_data5

✔

0.068 s

OK
function result: 0

Code: 10:07:32 UTC, js, final, score: 100

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

// 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] > A.length || typeof resultArray[A[i]] !== 'undefined') {
            return 0;
        } else {
            resultArray[A[i]] = true;
        }
    }
    for (let i = 0; i < resultArray.length; i++) {
        if (typeof resultArray[i] == "undefined") {
            return 0;
        }
    }
    return 1;
}

Analysis summary

The solution obtained perfect score.

Analysis

Detected time complexity:

O(N) or O(N * log(N))

expand all Example tests

▶

example1
the first example test

✔

0.068 s

▶

example2
the second example test

✔

0.068 s

expand all Correctness tests

▶

extreme_min_max
single element with minimal/maximal value

✔

0.068 s

▶

single
single element

✔

0.068 s

▶

double
two elements

✔

0.068 s

▶

antiSum1
total sum is correct, but it is not a permutation, N <= 10

✔

0.068 s

▶

small_permutation
permutation + one element occurs twice, N = ~100

✔

0.068 s

▶

permutations_of_ranges
permutations of sets like [2..100] for which the anwsers should be false

✔

0.076 s

0.068 s

expand all Performance tests

▶

medium_permutation
permutation + few elements occur twice, N = ~10,000

✔

0.080 s

▶

antiSum2
total sum is correct, but it is not a permutation, N = ~100,000

✔

0.104 s

0.112 s

▶

large_not_permutation
permutation + one element occurs three times, N = ~100,000

✔

0.120 s

▶

large_range
sequence 1, 2, ..., N, N = ~100,000

✔

0.112 s

▶

extreme_values
all the same values, N = ~100,000

✔

0.068 s

0.096 s

0.068 s

▶

various_permutations
all sequences are permutations

✔

0.068 s

0.084 s

0.116 s

0.120 s