求恰好使s＝1+1/2+1/3+…+1/n的值大于x时n的值

Question

如何用c语言做，一直做不出来。请各位大佬看看！

Answer 1

//s＝1+1/2+1/3+…+1/n的值大于x时n的值
#include <stdio.h>
int main()
{
    double sum = 0;
    int i=0;
    double x;
    scanf("%lf",&x);
    while(sum <= x)
    {
        i++;
        sum += 1.0/i;
    }
    printf("%d",i);
    return 0;
}