Submission #720548

#	Time	Username	Problem	Language	Result	Execution time	Memory
720548		mariowong	Balloons (CEOI11_bal)	C++14	20 / 100	482 ms	4488 KiB

bal

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


int main(){
	ios::sync_with_stdio(false);
	int n;
	cin >> n;
	long double gx,gr,lx,lr;
	for (int i=1;i<=n;i++){
		long double x,r;
		cin >> x >> r;
		if (i == 1){
			cout << setprecision(3) << fixed << r << "\n";
			gx=lx=x;
			gr=lr=r;
		}
		else
		{
			if ((gx-x)*(gx-x)*lr >= gr*(lx-x)*(lx-x)) gx=lx,gr=lr;
			cout << setprecision(3) << fixed << min((x-gx)*(x-gx)/4.0/gr,r) << "\n";
			lx=x; lr=min((x-gx)*(x-gx)/4.0/gr,r);
		}
	}
	return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 10 / 10
• Subtask 3: 0 / 10
• Subtask 4: 0 / 10
• Subtask 5: 0 / 10
• Subtask 6: 0 / 10
• Subtask 7: 0 / 10
• Subtask 8: 0 / 10
• Subtask 9: 0 / 10
• Subtask 10: 0 / 10