제출 #469306

#제출 시각아이디문제언어결과실행 시간메모리
469306AutronBalloons (CEOI11_bal)C++14
100 / 100
777 ms6604 KiB
#include <bits/stdc++.h> using namespace std; int main(){ int n; cin>>n; stack<pair<double, double>> s; for(int i=1;i<=n;++i){ double x, r; cin>>x>>r; while(!s.empty()){ double x1, r1; tie(x1, r1)=s.top(); double val=((x1-x)*(x1-x))/(4*r1); r=min(r, val); if(r>=r1) s.pop(); else break; } s.push({x, r}); cout<<fixed<<setprecision(9)<<r<<"\n"; } return 0; }
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