Test results - Codility

Tasks Details

easy

1. BinaryGap

Find longest sequence of zeros in binary representation of an integer.

Task Score

100%

Correctness

100%

Performance

Not assessed

A binary gap within a positive integer N is any maximal sequence of consecutive zeros that is surrounded by ones at both ends in the binary representation of N.

For example, number 9 has binary representation 1001 and contains a binary gap of length 2. The number 529 has binary representation 1000010001 and contains two binary gaps: one of length 4 and one of length 3. The number 20 has binary representation 10100 and contains one binary gap of length 1. The number 15 has binary representation 1111 and has no binary gaps. The number 32 has binary representation 100000 and has no binary gaps.

Write a function:

function solution(N);

that, given a positive integer N, returns the length of its longest binary gap. The function should return 0 if N doesn't contain a binary gap.

For example, given N = 1041 the function should return 5, because N has binary representation 10000010001 and so its longest binary gap is of length 5. Given N = 32 the function should return 0, because N has binary representation '100000' and thus no binary gaps.

Write an efficient algorithm for the following assumptions:

N is an integer within the range [1..2,147,483,647].

Solution

Programming language used JavaScript

Time spent on task 10 minutes

Notes

not defined yet

Code: 09:33:10 UTC, java, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11

// 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 N) {
        // write your code in Java SE 8
    }
}

Code: 09:33:25 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6

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

function solution(N) {
    // write your code in JavaScript (Node.js 8.9.4)
}

Code: 09:33:36 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6

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

function solution(N) {
    
}

Code: 09:34:22 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6

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

function solution(N) {
    if (n)
}

Code: 09:34:35 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    
}

Code: 09:34:59 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = num.toString(2);
}

Code: 09:35:09 UTC, js, autosave

show code in pop-up

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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary)
}

Code: 09:35:18 UTC, js, verify, result: Failed

show code in pop-up

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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

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:

10000010001

▶

example2
example test n=15=1111_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.120 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:

▶

example3
example test n=32=100000_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.120 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:

expand all User tests

▶

test_data1

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.120 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: 09:35:58 UTC, js, autosave

show code in pop-up

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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(tybinary)
}

Code: 09:36:00 UTC, js, verify, result: Failed

show code in pop-up

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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(typeof binary)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

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:

string

▶

example2
example test n=15=1111_2

✘

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:

string

▶

example3
example test n=32=100000_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.080 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:

string

expand all User tests

▶

test_data1

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.088 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:

string

Code: 09:36:29 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let gap = 0;
    for (let i = 0; i < binary.length; i++) {
        
    }

    console.log(typeof binary)
}

Code: 09:36:49 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 0; i < binary.length; i++) {
        if ()
    }

    console.log(typeof binary)
}

Code: 09:37:20 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(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 01; i < binary.length; i++) {
        if ()
    }

    console.log(typeof binary)
}

Code: 09:37:31 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(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] )
    }

    console.log(typeof binary)
}

Code: 09:38:01 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(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }
    }

    console.log(typeof binary)
}

Code: 09:38:18 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            
        }
    }

    console.log(typeof binary)
}

Code: 09:38:35 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(typeof binary)
}

Code: 09:38:39 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.088 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:

▶

example2
example test n=15=1111_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.080 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:

▶

example3
example test n=32=100000_2

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.100 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:

expand all User tests

▶

test_data1

✘

RUNTIME ERROR
tested program terminated with exit code 1

0.116 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: 09:38:54 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

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:

10000010001
1

▶

example2
example test n=15=1111_2

✘

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:

1111
0

▶

example3
example test n=32=100000_2

✘

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:

100000
0

expand all User tests

▶

test_data1

✘

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:

1001
1

Code: 09:39:10 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }
        

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

Code: 09:39:22 UTC, js, autosave

show code in pop-up

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '0') {
            currentGap++;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

Code: 09:39:35 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 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0' && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '0') {
            currentGap++;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

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:

10000010001
6

▶

example2
example test n=15=1111_2

✘

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:

1111
0

▶

example3
example test n=32=100000_2

✘

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:

100000
0

expand all User tests

▶

test_data1

✘

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:

1001
3

Code: 09:40:03 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') && binary[i - 1] === '1') {
            currentGap = 1;
        }

        if (binary[i] === '0') {
            currentGap++;
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

Code: 09:40:31 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 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    console.log(biggestGap)
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✘

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:

10000010001
5

▶

example2
example test n=15=1111_2

✘

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:

1111
0

▶

example3
example test n=32=100000_2

✘

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:

100000
0

expand all User tests

▶

test_data1

✘

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:

1001
2

Code: 09:40:38 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    og(biggestGap)
}

Code: 09:40:44 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[9]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.072 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 2

stdout:

Code: 09:41:08 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

94654654654654

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.072 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✘

RUNTIME ERROR
invalid input, integer value out of range: 94654654654654

0.001 s

RUNTIME ERROR, invalid input, integer value out of range: 94654654654654

Code: 09:41:21 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

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

Code: 09:41:27 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.080 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.076 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✔

0.076 s

OK
function result: 0

stdout:

1111111111111111111111111111111

Code: 09:41:30 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

User test case 2:

[0]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.072 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 0

stdout:

1111111111111111111111111111111

▶

test_data2

✔

0.072 s

OK
function result: 0

stdout:

Code: 09:41:41 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

User test case 2:

[0]

User test case 3:

[2147483646]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.076 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.072 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✔

0.076 s

OK
function result: 0

stdout:

1111111111111111111111111111111

▶

test_data2

✔

0.076 s

OK
function result: 0

stdout:

▶

test_data3

✔

0.076 s

OK
function result: 0

stdout:

1111111111111111111111111111110

Code: 09:41:51 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 22 23 24 25 26 27 28 29 30 31 32 33

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    console.log(binary);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

User test case 2:

[0]

User test case 3:

[1576458745]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

stdout:

10000010001

▶

example2
example test n=15=1111_2

✔

0.072 s

stdout:

▶

example3
example test n=32=100000_2

✔

0.072 s

stdout:

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 0

stdout:

1111111111111111111111111111111

▶

test_data2

✔

0.072 s

OK
function result: 0

stdout:

▶

test_data3

✔

0.072 s

OK
function result: 2

stdout:

1011101111101101101100111111001

Code: 09:42:00 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(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);


    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

Code: 09:42:05 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 22 23 24 25 26 27 28 29 30 31

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

User test case 2:

[0]

User test case 3:

[1576458745]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

▶

example2
example test n=15=1111_2

✔

0.072 s

▶

example3
example test n=32=100000_2

✔

0.068 s

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 0

▶

test_data2

✔

0.072 s

OK
function result: 0

▶

test_data3

✔

0.068 s

OK
function result: 2

Code: 09:42:13 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 22 23 24 25 26 27 28 29 30 31

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

User test case 1:

[2147483647]

User test case 2:

[0]

User test case 3:

[1576458745]

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

▶

example2
example test n=15=1111_2

✔

0.068 s

▶

example3
example test n=32=100000_2

✔

0.072 s

expand all User tests

▶

test_data1

✔

0.072 s

OK
function result: 0

▶

test_data2

✔

0.068 s

OK
function result: 0

▶

test_data3

✔

0.072 s

OK
function result: 2

Code: 09:42:16 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 21 22 23 24 25 26 27 28 29 30 31

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

function solution(N) {
    if (N < 0) {
        return 0;
    }

    const binary = N.toString(2);

    let biggestGap = 0;
    let currentGap = 0;

    for (let i = 1; i < binary.length; i++) {
        if (binary[i] === '0') {
            if (binary[i - 1] === '0') {
                currentGap++;
            } else {
                currentGap = 1;
            }
        }

        if (binary[i] === '1' && binary[i - 1] === '0') {
            if (biggestGap < currentGap) {
                biggestGap = currentGap;
            }
        }
    }

    return biggestGap;
}

Analysis summary

The solution obtained perfect score.

Analysis

expand all Example tests

▶

example1
example test n=1041=10000010001_2

✔

0.072 s

▶

example2
example test n=15=1111_2

✔

0.072 s

▶

example3
example test n=32=100000_2

✔

0.072 s

expand all Correctness tests

▶

extremes
n=1, n=5=101_2 and n=2147483647=2**31-1

✔

0.072 s

▶

trailing_zeroes
n=6=110_2 and n=328=101001000_2

✔

0.072 s

▶

power_of_2
n=5=101_2, n=16=2**4 and n=1024=2**10

✔

0.072 s

▶

simple1
n=9=1001_2 and n=11=1011_2

✔

0.072 s

▶

simple2
n=19=10011 and n=42=101010_2

✔

0.072 s

0.068 s

▶

simple3
n=1162=10010001010_2 and n=5=101_2

✔

0.072 s

▶

medium1
n=51712=110010100000000_2 and n=20=10100_2

✔

0.072 s

▶

medium2
n=561892=10001001001011100100_2 and n=9=1001_2

✔

0.072 s

▶

medium3
n=66561=10000010000000001_2

✔

0.072 s

▶

large1
n=6291457=11000000000000000000001_2

✔

0.072 s

▶

large2
n=74901729=100011101101110100011100001

✔

0.072 s

▶

large3
n=805306373=110000000000000000000000000101_2

✔

0.072 s

▶

large4
n=1376796946=1010010000100000100000100010010_2

✔

0.072 s

▶

large5
n=1073741825=1000000000000000000000000000001_2

✔

0.072 s

▶

large6
n=1610612737=1100000000000000000000000000001_2

✔

0.072 s