Run ID:7989

提交时间:2025-05-31 20:46:21

#include<bits/stdc++.h> using namespace std; int main(){ double sn=0; int k,i=1; cin>>k; while(sn<=k){ sn+=1.0/i; //cout<<sn<<" "; i++; } cout<<i-1; return 0; }