제출 #467592

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
467592		nicolaalexandra	Balloons (CEOI11_bal)	C++14	100 / 100	352 ms	12112 KiB

bal

#include <bits/stdc++.h>
#define DIM 200010
using namespace std;

struct cerc{
    long long x;
    long double r;
} v[DIM];

int n,i,j;
deque <int> d;

long double get_raza (int i, int j){

    v[i].r = min (v[i].r, 1.0 * (v[i].x - v[j].x) * (v[i].x - v[j].x) / (4.0 * v[j].r));
    return v[i].r;
}

int main (){

    //ifstream cin ("date.in");
    //ofstream cout ("date.out");

    cin>>n;
    for (i=1;i<=n;i++)
        cin>>v[i].x>>v[i].r;

    for (i=1;i<=n;i++){


        while (!d.empty() && get_raza(i,d.back()) > v[d.back()].r)
            d.pop_back();
        d.push_back(i);

        cout<<setprecision(3)<<fixed<<v[i].r<<"\n";
    }


    return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 10 / 10
• Subtask 4: 10 / 10
• Subtask 5: 10 / 10
• Subtask 6: 10 / 10
• Subtask 7: 10 / 10
• Subtask 8: 10 / 10
• Subtask 9: 10 / 10
• Subtask 10: 10 / 10