- 龙凤苑中学C班4.18
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- @ 2024-4-18 17:41:49
#include <bits/stdc++.h> using namespace std; long long m=0,d=0,p; double s; int a[1000900]; int main() { int n,x; int k=1; cin>>k; s=0; for(int j=1; ;j++){ s+=1.0/j; if(s>k){ cout<<j; break; } } return 0; }
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