c++ 4ms solution with explanation


  • 0
    K

    The way that I used to calculate the number is by first dividing 5, and the result is A1, then divide 5 continuously until the original number is 0, during this process, we generated a series of A1, A2,A3..., simply taking the sum of these numbers is the final result.

    int count = 0;
    while(n)
    {
    count += n/5;
    n /= 5;
    }
    return count;
    }


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