麻烦帮忙看看，这样为什么不对

tm25 @ 2022-07-20 15:39:19

    #include<bits/stdc++.h>
    using namespace std;
    int main(){

    int n=0,k;
    double a,s=0;
    scanf("%d",&k);
    while(s<=k)
    {
        n++;
        a=1/n;
        s+=a;
    }
    printf("%d",n);
    return 0;
    }

by LiaoYF @ 2022-07-20 15:58:09

@tm25 1/n得到的还是int类型啊，因为n是int，1也是int

by LiaoYF @ 2022-07-20 15:59:07

@tm25 改成a=1.0/n;

by tm25 @ 2022-07-21 18:14:34

@Mr_LiaoYifan 明白了，谢谢大佬

by Angus66 @ 2023-10-29 10:58:51

#include <bits/stdc++.h>

using namespace std;

int main(){

    int a=0;

    double num=0;

    int i=0;

    cin>>a;

    while(num<a){

        i++;

        num=num+1.0/i;

    }

    cout<<i;

    return 0;

}