Submission #1215239

#	Time	Username	Problem	Language	Result	Execution time	Memory
1215239		timeflew	Balloons (CEOI11_bal)	C++20	10 / 100	120 ms	2808 KiB

bal

#include<bits/stdc++.h>
using namespace std;

#define ll long long
#define ff first
#define ss second
#define all(x) x.begin(), x.end()

int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    int n; cin>>n;
    vector<pair<double, double>> stk;
    for(int i=0; i<n; i++) {
        double x, r; cin>>x>>r;
        while(stk.size()&&(x-stk.back().ff)*(x-stk.back().ff)<=r*stk.back().ss*4) {
            r=min(r, (x-stk.back().ff)*(x-stk.back().ff)/(stk.back().ss*4));
            stk.pop_back();
        }
        stk.push_back({x, r});
        cout<<fixed<<setprecision(3)<<r<<"\n";
    }
    return 0;
}
//rating below 2400 must be solved orzorzorz

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• Subtask 2: 10 / 10
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