全红

lztz0503 @ 2023-08-28 13:04:52

#include <bits/stdc++.h>
using namespace std;
int n,cnt;
int i = 1;
int main(){
    cin >> n;
    while(n < cnt){
        cnt += 1 / i;
        i += 1;
    }
    cout << i;
    return 0;
}

by _Glassy_Sky_ @ 2023-08-28 13:26:35

@LuoJingjia 不是i+ 1吗？

by LittleAcbg @ 2023-08-28 13:32:49

@FZwangmuem 不是应该输出 i - 1 么

by Andy_hpy @ 2023-09-13 15:12:05

#include<bits/stdc++.h>
using namespace std;
int main(){
    int k;
    cin>>k;
    double s=0;
    long long n;
    for(long long i=1;s<=k;i++){
        s+=1.0/i;
        n=i;
    }
    cout<<n;
    return 0;
}