6 solutions

  • 1
    @ 2022-4-5 0:45:10

    C++

    有一个小小的注意点,先从小的除,防止超时

    #include <iostream>
    #include <cmath>
    using namespace std;
    int isprime(int n)
    {
        int m = sqrt(n);
        for(int i = 2; i <= m; i++)
        {
            if(n % i == 0)  return 0;
        }
        return 1;
    }
    int main()
    {
        int n = 0;
        cin >> n;
        int m = sqrt(n);
        int i = 0;
        for(i = 2; i <= m; i++)
        {
            if(n % i == 0 && isprime(n/i))
            {
                cout << n/i << endl;
                break;
            }
        }
        return 0;
    }
    

    Information

    ID
    44
    Time
    1000ms
    Memory
    256MiB
    Difficulty
    7
    Tags
    # Submissions
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