Test results - Codility

Tasks Details

medium

1. MaxCounters

Calculate the values of counters after applying all alternating operations: increase counter by 1; set value of all counters to current maximum.

Task Score

100%

Correctness

100%

Performance

100%

You are given N counters, initially set to 0, and you have two possible operations on them:

increase(X) − counter X is increased by 1,

max counter − all counters are set to the maximum value of any counter.

A non-empty array A of M integers is given. This array represents consecutive operations:

if A[K] = X, such that 1 ≤ X ≤ N, then operation K is increase(X),

if A[K] = N + 1 then operation K is max counter.

For example, given integer N = 5 and array A such that:

A[0] = 3 A[1] = 4 A[2] = 4 A[3] = 6 A[4] = 1 A[5] = 4 A[6] = 4

the values of the counters after each consecutive operation will be:

(0, 0, 1, 0, 0) (0, 0, 1, 1, 0) (0, 0, 1, 2, 0) (2, 2, 2, 2, 2) (3, 2, 2, 2, 2) (3, 2, 2, 3, 2) (3, 2, 2, 4, 2)

The goal is to calculate the value of every counter after all operations.

Write a function:

function solution(N, A);

that, given an integer N and a non-empty array A consisting of M integers, returns a sequence of integers representing the values of the counters.

Result array should be returned as an array of integers.

For example, given:

A[0] = 3 A[1] = 4 A[2] = 4 A[3] = 6 A[4] = 1 A[5] = 4 A[6] = 4

the function should return [3, 2, 2, 4, 2], as explained above.

Write an efficient algorithm for the following assumptions:

N and M are integers within the range [1..100,000];

each element of array A is an integer within the range [1..N + 1].

Solution

Programming language used JavaScript

Time spent on task 12 minutes

Notes

not defined yet

Code: 09:11:58 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 N, int[] A) {
        // write your code in Java SE 8
    }
}

Code: 09:12:02 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
}

Code: 09:12:16 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = 
}

Code: 09:12:30 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from()
}

Code: 09:12:57 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    for()
}

Code: 09:13:15 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach()
}

Code: 09:13:24 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach(())
}

Code: 09:13:49 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        
    })
}

Code: 09:14:12 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            
        }
    })
}

Code: 09:14:23 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[]
        }
    })
}

Code: 09:14:42 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max()
        }
    })
}

Code: 09:14:57 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1])
        }
    })
}

Code: 09:15:09 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min)
        }
    })
}

Code: 09:16:12 UTC, js, autosave

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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, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+, min)
        }
    })
}

Code: 09:16:42 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[va])
        }
    })
}

Code: 09:16:55 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
}

Code: 09:17:12 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    result.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result.forEac
}

Code: 09:17:25 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result.forEach()
}

Code: 09:17:56 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result.map((val, i) =)
}

Code: 09:18:06 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 22

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result = result.map((val, i) => {
        
    })
}

Code: 09:18:16 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 21 22

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    return result.map((val, i) => {
        
    })
}

Code: 09:18:42 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    return result.map((val, i) => {
        result[i] = Math.max(result[i], min)
    })
}

Code: 09:18:52 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 22

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    return result.map((val, i) => {
        result[i] = Math.max(result[i], min);
    });
}

Analysis

expand all Example tests

▶

example
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'?

Code: 09:19:12 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result.map((val, i) => {
        result[i] = Math.max(result[i], min);
    });
    
    return 
}

Code: 09:19:23 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result = result.map((val, i) => {
        result[i] = Math.max(result[i], min);
    });
    
    return result
}

Code: 09:19:24 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    
    result = result.map((val, i) => {
        result[i] = Math.max(result[i], min);
    });
    
    return result
}

Analysis

expand all Example tests

▶

example
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'?

Code: 09:19:39 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    result = result.map((val, i) => {
        result[i] = Math.max(result[i], min);
    });
    
    return result
}

Analysis

expand all Example tests

▶

example
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:

[ 2, 0, 1, 4, 0 ]

Code: 09:19:57 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    result = result.map(
    
    return result
}

Code: 09:20:28 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    for (let i =0; i< result.length; i)
    
    return result
}

Code: 09:20:57 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result
}

Code: 09:21:00 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1]+1, min);
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Analysis

expand all Example tests

▶

example
example test

✘

WRONG ANSWER
got [2, 2, 2, 4, 2] expected [3, 2, 2, 4, 2]

0.076 s

WRONG ANSWER, got [2, 2, 2, 4, 2] expected [3, 2, 2, 4, 2]

stdout:

[ 2, 0, 1, 4, 0 ]

Code: 09:21:27 UTC, js, verify, result: Passed

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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    console.log(result);
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Analysis

expand all Example tests

▶

example
example test

✔

0.076 s

stdout:

[ 3, 0, 1, 4, 0 ]

Code: 09:21:33 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

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
 
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Code: 09:21:43 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Code: 09:22:18 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Code: 09:22:48 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Code: 09:23:18 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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Code: 09:23:19 UTC, js, verify, result: Passed

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

function solution(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

User test case 1:

[3, [1]]

User test case 2:

[3, [4]]

User test case 3:

[3, [1, 4, 2]]

User test case 4:

[10, [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4, 3, 5, 6, 7, 11, 10, 1, 2]]

Analysis

expand all Example tests

▶

example
example test

✔

0.072 s

expand all User tests

▶

test_data1

✔

0.068 s

OK
function result: [1, 0, 0]

▶

test_data2

✔

0.068 s

OK
function result: [0, 0, 0]

▶

test_data3

✔

0.072 s

OK
function result: [1, 2, 1]

▶

test_data4

✔

0.068 s

OK
function result: [16, 16, 15, 15, 15, 15, 15, 15, 15, 16]

Code: 09:23:48 UTC, js, verify, result: Passed

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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

User test case 1:

[3, [1]]

User test case 2:

[3, [4]]

User test case 3:

[3, [1, 4, 2]]

User test case 4:

[10, [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 4, 3, 5, 6, 7, 11, 10, 1, 2]]

Analysis

expand all Example tests

▶

example
example test

✔

0.112 s

expand all User tests

▶

test_data1

✔

0.120 s

OK
function result: [1, 0, 0]

▶

test_data2

✔

0.116 s

OK
function result: [0, 0, 0]

▶

test_data3

✔

0.112 s

OK
function result: [1, 2, 1]

▶

test_data4

✔

0.116 s

OK
function result: [16, 16, 15, 15, 15, 15, 15, 15, 15, 16]

Code: 09:23:52 UTC, js, final, score: 100

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(N, A) {
    // write your code in JavaScript (Node.js 8.9.4)
    let result = Array.from({length: N}, () => 0);
    let max = 0;
    let min = 0;
    
    A.forEach((val) => {
        if(val > N) {
            min = max;
        } else {
            result[val-1] = Math.max(result[val-1], min) + 1;
            max = Math.max(result[val-1], max);
        }
    })
    for (let i =0; i< result.length; i++) {
        result[i] = Math.max(result[i], min);
    }
    
    return result;
}

Analysis summary

The solution obtained perfect score.

Analysis

Detected time complexity:

O(N + M)

expand all Example tests

▶

example
example test

✔

0.068 s

expand all Correctness tests

▶

extreme_small
all max_counter operations

✔

0.068 s

▶

single
only one counter

✔

0.068 s

▶

small_random1
small random test, 6 max_counter operations

✔

0.068 s

▶

small_random2
small random test, 10 max_counter operations

✔

0.068 s

expand all Performance tests

▶

medium_random1
medium random test, 50 max_counter operations

✔

0.068 s

▶

medium_random2
medium random test, 500 max_counter operations

✔

0.068 s

▶

large_random1
large random test, 2120 max_counter operations

✔

0.112 s

▶

large_random2
large random test, 10000 max_counter operations

✔

0.132 s

▶

extreme_large
all max_counter operations

✔

0.152 s

0.144 s