yangdoubao @ 2021-10-26 23:06:45
#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
double s=0.0000;
int n,k;
cin>>k;
for(n=1;s<=k;n++) s+=(1.0/n);
printf("%d",n);
return 0;
}
by Mr_ll @ 2021-10-27 09:55:55
@yangdoubao 输出n-1; for循环,如果是s<=k成立,执行循环体,然后n++;也就是说,你的s已经大于k了,但n++了;
by Wangjiankai @ 2021-12-06 22:20:49
@yangdoubao 输出n-1; for循环,如果是s<=k成立,执行循环体,然后n++;也就是说,你的s已经大于k了,但n++了;