제출 #1174179

#제출 시각아이디문제언어결과실행 시간메모리
1174179paskalisapoBalloons (CEOI11_bal)C++20
100 / 100
155 ms5172 KiB
#include<bits/stdc++.h> using namespace std; using dd = long double; int main() { dd n; cin >> n; stack<pair<dd,dd>> s; vector<dd> bsize(n); for(int i = 0 ;i < n; i++) { dd val, msize; cin >> val; cin >> msize; if(s.empty()) { bsize[i] = msize; s.push({msize , val}); continue; } dd rnow = msize; while(!s.empty()) { dd dist = val - s.top().second; dd rprev = s.top().first; rnow = min(rnow, (dist * dist) / (4 * rprev)); if(rnow < rprev) { break; } else { s.pop(); } } bsize[i] = rnow; s.push({rnow , val}); } for(auto &x: bsize) { printf("%.3Lf\n", x); } }
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