Rounding off a positive number to the next nearest multiple of 5

Question

I need to round of a number (the input is guaranteed to be an integer & is positive) to the next multiple of 5.

I tried this:

int round = ((grade         


        

Answer 1

Try this:

int num = grades[j] % 5 < 3 ? grades[j] - (grades[j] % 5) : grades[j] - (grades[j] % 5) + 5;

Here demo code:

#include 

int main() {
    //code
    int grades[5] = {10, 68, 12, 67, 41};
    int j;
    for (j = 0; j < 5; j++)
    {
        int num = grades[j] % 5 < 3? grades[j] - (grades[j] % 5) : grades[j] - (grades[j] % 5) + 5;
        printf("%d\n",num);
    }

    return 0;
}

Output:

10
70
10
65
40

I hope help you.