Test results - Codility

Tasks Details

medium

1. MissingInteger

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].

Solution

Programming language used JavaScript

Time spent on task 17 minutes

Notes

not defined yet

Task timeline

Code: 04:19:21 UTC, java, autosave

show code in pop-up

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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: 04:19:40 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) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    
    const array = [...set]
    
    if (array.length === 0) {
        return 1
    } else {
        for (let i=0; i<array.length; i++) {
            if (array.indexOf(i+1) === -1) {
                return i+1
            }
        }
        return array.length + 1
    }
}

Code: 04:19:55 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) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Code: 04:20:24 UTC, js, verify, result: Failed

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 22 23 24 25 26 27 28 29 30

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

Set { 1, 3, 6, 4, 2 }

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

Set { 1, 2, 3 }

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

Set {}

Code: 04:20:44 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 22 23 24 25 26 27 28 29 30 31 32

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    const
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Code: 04:21:03 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 21 22 23 24 25 26 27 28 29 30 31 32 33 34

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    const check = Array(set.size).fill(false)
    
    
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Code: 04:21:14 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) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    const check = Array(set.size).fill(false)
    
    
    
    
    const array = [...set]
    
    if (array.length === 0) {
        return 1
    } else {
        for (let i=0; i<array.length; i++) {
            if (array.indexOf(i+1) === -1) {
                return i+1
            }
        }
        return array.length + 1
    }
    
    
}

Code: 04:21:33 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) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0 && !set.has(A[i])) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    const check = Array(set.size).fill(false)
    
    
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Code: 04:25:00 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) {
    const set = new Set()
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            set.add(A[i])
        }    
    }
    
    console.log(set)
    
    const check = Array(set.size).fill(false)
    
    
    
    
    // const array = [...set]
    
    // if (array.length === 0) {
    //     return 1
    // } else {
    //     for (let i=0; i<array.length; i++) {
    //         if (array.indexOf(i+1) === -1) {
    //             return i+1
    //         }
    //     }
    //     return array.length + 1
    // }
    
    
}

Code: 04:26:01 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) {
    A.
    
    
}

Code: 04:26:18 UTC, js, verify, result: Failed

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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    console.log(sorted)
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ 1, 1, 2, 3, 4, 6 ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ 1, 2, 3 ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[]

Code: 04:26:33 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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    
    
    
    
}

Code: 04:26:52 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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i ===)
    }
    
    
}

Code: 04:27:13 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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next  i > next + 1) {
            return 
        }
    }
    
    
}

Code: 04:27:23 UTC, js, verify, result: Failed

show code in pop-up

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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next  i > next + 1) {
            return next
        }
    }
    
    return 1
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:9
        if (i !== next  i > next + 1) {
                        ^

SyntaxError: Unexpected identifier
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:9
        if (i !== next  i > next + 1) {
                        ^

SyntaxError: Unexpected identifier
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:9
        if (i !== next  i > next + 1) {
                        ^

SyntaxError: Unexpected identifier
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

Code: 04:27:32 UTC, js, verify, result: Failed

show code in pop-up

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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next && i > next + 1) {
            return next
        }
    }
    
    return 1
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

WRONG ANSWER
got 1 expected 5

0.072 s

WRONG ANSWER, got 1 expected 5

▶

example2
second example test

✘

WRONG ANSWER
got 1 expected 4

0.072 s

WRONG ANSWER, got 1 expected 4

▶

example3
third example test

✔

0.072 s

Code: 04:27:42 UTC, js, verify, result: Failed

show code in pop-up

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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next && i > next + 1) {
            return next
        }
    }
    
    return next
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

WRONG ANSWER
got 1 expected 5

0.092 s

WRONG ANSWER, got 1 expected 5

▶

example2
second example test

✘

WRONG ANSWER
got 1 expected 4

0.076 s

WRONG ANSWER, got 1 expected 4

▶

example3
third example test

✔

0.080 s

Code: 04:28:06 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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next && i > next + 1) {
            return next
        }
        
        if ()
    }
    
    return next
    
    
}

Code: 04:28:16 UTC, js, verify, result: Failed

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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next && i > next + 1) {
            return next
        }
        
        if (i === next + 1) {
            next += 1
        }
    }
    
    return next
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

WRONG ANSWER
got 4 expected 5

0.072 s

WRONG ANSWER, got 4 expected 5

▶

example2
second example test

✘

WRONG ANSWER
got 3 expected 4

0.072 s

WRONG ANSWER, got 3 expected 4

▶

example3
third example test

✔

0.068 s

Code: 04:29:38 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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next  i > next + 1) {
            return next
        }
        
        if (i === next + 1) {
            next += 1
        }
    }
    
    return next
    
    
}

Code: 04:29:49 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 21

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next || i > next + 1) {
            return next
        }
        
        if (i === next + 1) {
            next += 1
        }
    }
    
    return next
    
    
}

Code: 04:29:52 UTC, js, verify, result: Failed

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) {
    const sorted = A.filter((i) => i > 0).sort((a, b) => a- b)
    
    let next = 1
    for (let i of sorted) {
        if (i !== next || i > next + 1) {
            return next
        }
        
        if (i === next + 1) {
            next += 1
        }
    }
    
    return next
    
    
}

Analysis

expand all Example tests

▶

example1
first example test

✘

WRONG ANSWER
got 1 expected 5

0.072 s

WRONG ANSWER, got 1 expected 5

▶

example2
second example test

✘

WRONG ANSWER
got 1 expected 4

0.072 s

WRONG ANSWER, got 1 expected 4

▶

example3
third example test

✔

0.072 s

Code: 04:31:09 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    
    
}

Code: 04:31:40 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) {
    const chekcer = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        
    }
    
}

Code: 04:31:55 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        checker[i] = true
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ true, true, true, true, true, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ true, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ true, true ]

Code: 04:32:10 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        checker[A[i]] = true
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, true, true, true, true, false, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, true, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, false, '-1': true, '-3': true ]

Code: 04:32:22 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        checker[A[i]-] = true
    }
    
    
    console.log(checker)
}

Code: 04:32:24 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        checker[A[i]-1] = true
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ true, true, true, true, false, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ true, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, false, '-2': true, '-4': true ]

Code: 04:32:47 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i]-1 > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, true, true, true, false, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

[ false, false ]

Code: 04:32:58 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        consol
        if (A[i]-1 > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    console.log(checker)
}

Code: 04:33:02 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        console.log(A[i])
        if (A[i]-1 > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

1
3
6
4
1
2
[ false, true, true, true, false, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

1
2
3
[ false, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.076 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

-1
-3
[ false, false ]

Code: 04:33:27 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        console.log(A[i])
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    console.log(checker)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

1
3
6
4
1
2
[ true, true, true, true, false, true ]

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

1
2
3
[ true, true, true ]

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

Invalid result type, integer expected, 'undefined' found
Perhaps you are missing a 'return'?

stdout:

-1
-3
[ false, false ]

Code: 04:33:39 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        console.log(A[i])
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    ch
}

Code: 04:33:47 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        console.log(A[i])
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    return checker.indexOf(false)
}

Analysis

expand all Example tests

▶

example1
first example test

✘

WRONG ANSWER
got 4 expected 5

0.076 s

WRONG ANSWER, got 4 expected 5

stdout:

▶

example2
second example test

✘

WRONG ANSWER
got -1 expected 4

0.076 s

WRONG ANSWER, got -1 expected 4

stdout:

1
2
3

▶

example3
third example test

✘

WRONG ANSWER
got 0 expected 1

0.072 s

WRONG ANSWER, got 0 expected 1

stdout:

-1
-3

Code: 04:34:05 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {=
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    return checker.indexOf(false) + 1
}

Analysis

expand all Example tests

▶

example1
first example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:7
    for (let i=0; i<A.length; i++) {=
                                    ^

SyntaxError: Unexpected token =
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

▶

example2
second example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:7
    for (let i=0; i<A.length; i++) {=
                                    ^

SyntaxError: Unexpected token =
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

▶

example3
third example test

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.072 s

RUNTIME ERROR, tested program terminated with exit code 1

stderr:

solution.js:7
    for (let i=0; i<A.length; i++) {=
                                    ^

SyntaxError: Unexpected token =
    at createScript (vm.js:80:10)
    at Object.runInNewContext (vm.js:135:10)
    at getSolution (/tmp/exec.js:392:29)
    at Promise.resolve.then (/tmp/exec.js:426:34)
    at <anonymous>
    at process._tickCallback (internal/process/next_tick.js:188:7)
    at Function.Module.runMain (module.js:686:11)
    at startup (bootstrap_node.js:187:16)
    at bootstrap_node.js:608:3

Code: 04:34:10 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    return checker.indexOf(false) + 1
}

Code: 04:34:36 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    
    return checker.indexOf(false) + 1
}

Analysis

expand all Example tests

▶

example1
first example test

✔

0.072 s

▶

example2
second example test

✘

WRONG ANSWER
got 0 expected 4

0.068 s

WRONG ANSWER, got 0 expected 4

▶

example3
third example test

✔

0.068 s

Code: 04:34:45 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    i
    return checker.indexOf(false) + 1
}

Code: 04:34:58 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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    const index = checker.indexOf(false)
    return checker.indexOf(false) + 1
}

Code: 04:35:11 UTC, js, verify, result: Failed

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) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    const index = checker.indexOf(false)
    return index === -1 ? checker.length :  index + 1
}

Analysis

expand all Example tests

▶

example1
first example test

✔

0.072 s

▶

example2
second example test

✘

WRONG ANSWER
got 3 expected 4

0.072 s

WRONG ANSWER, got 3 expected 4

▶

example3
third example test

✔

0.076 s

Code: 04:35:19 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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    const index = checker.indexOf(false)
    return index === -1 ? checker.length + 1 :  index + 1
}

Analysis

expand all Example tests

▶

example1
first example test

✔

0.072 s

▶

example2
second example test

✔

0.072 s

▶

example3
third example test

✔

0.072 s

Code: 04:35:33 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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    const index = checker.indexOf(false)
    return index === -1 ? checker.length + 1 :  index + 1
}

Analysis

expand all Example tests

▶

example1
first example test

✔

0.068 s

▶

example2
second example test

✔

0.068 s

▶

example3
third example test

✔

0.068 s

Code: 04:35:37 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

// you can write to stdout for debugging purposes, e.g.
// console.log('this is a debug message');

function solution(A) {
    const checker = Array(A.length).fill(false)
    
    for (let i=0; i<A.length; i++) {
        if (A[i] > 0) {
            checker[A[i]-1] = true
        }
    }
    
    const index = checker.indexOf(false)
    return index === -1 ? checker.length + 1 :  index + 1
}

Analysis summary

The solution obtained perfect score.

Analysis

Detected time complexity:

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

expand all Example tests

▶

example1
first example test

✔

0.072 s

▶

example2
second example test

✔

0.072 s

▶

example3
third example test

✔

0.072 s

expand all Correctness tests

▶

extreme_single
a single element

✔

0.072 s

0.068 s

▶

simple
simple test

✔

0.072 s

0.068 s

0.072 s

▶

extreme_min_max_value
minimal and maximal values

✔

0.068 s

0.072 s

▶

positive_only
shuffled sequence of 0...100 and then 102...200

✔

0.072 s

▶

negative_only
shuffled sequence -100 ... -1

✔

0.076 s

expand all Performance tests

▶

medium
chaotic sequences length=10005 (with minus)

✔

0.080 s

0.088 s

▶

large_1
chaotic + sequence 1, 2, ..., 40000 (without minus)

✔

0.124 s

▶

large_2
shuffled sequence 1, 2, ..., 100000 (without minus)

✔

0.112 s

▶

large_3
chaotic + many -1, 1, 2, 3 (with minus)

✔

0.404 s