제출 #584566

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
584566		israeladewuyi	Balloons (CEOI11_bal)	C++17	10 / 100	616 ms	6192 KiB

bal

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
#define int ll
#define endl "\n"

int N;

int32_t main(){
	cin>>N;
	stack<pair<long double, long double>>St;
	int answer = 0;

	for(int i = 0; i < N; i++){
		long double pos, radius; cin>>pos>>radius;
		if(i == 0){
			cout<<fixed<<setprecision(10)<<radius<<endl;
			St.push({pos, radius});
		}
		else{
			while(!St.empty()){
				auto cur = St.top();
				long double pp = cur.first;
				long double radd = cur.second;
				radius = min((long double)radius, (long double)((pos - pp) * (pos - pp)) / (long double)(4 * radd));
				if(radius >= radd){
					St.pop();
				}
				else break;
			}
			cout<<fixed<<setprecision(10)<<radius<<endl;
		}
	}

	
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

bal.cpp: In function 'int32_t main()':
bal.cpp:13:6: warning: unused variable 'answer' [-Wunused-variable]
   13 |  int answer = 0;
      |      ^~~~~~

• Subtask 1: 0 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
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• Subtask 10: 0 / 10