oj.uz

답안 #878695

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
878695 2023-11-25T05:42:30 Z Faisal_Saqib Sure Bet (CEOI17_sure) C++17
0 / 100
 0 ms 348 KB 
#include <iostream>
#include <vector>
#include <cmath>
#include <algorithm>
#include <iomanip>
using namespace std;
int main()
{
    cout<<fixed<<setprecision(4);
	int n;
	cin>>n;
	vector<double> a,b;
	for(int i=0;i<n;i++)
	{
		double x,y;
		cin>>x>>y;
		a.push_back(x);
		b.push_back(y);
	}
	sort(rbegin(a),rend(a));
	sort(rbegin(b),rend(b));
	vector<double> pre0,pre1;
	pre1=pre0={0};
	for(int i=0;i<n;i++)
	{
		pre0.push_back(pre0.back()+a[i]);
		pre1.push_back(pre1.back()+b[i]);
	}
	int j=0;
	double ans=0;
	n++;
	for(int i=0;i<n;i++)
	{
		while(j<n and pre1[j]<pre0[i])
		{
			j++;
		}
		if(j!=n)
		{
			ans=max(ans,pre0[i]-i-j);
		}
		// pre[j] >= pre[i]
	}
	j=0;
	for(int i=0;i<n;i++)
	{
		while(j<=n and pre0[j]<pre1[i])
		{
			j++;
		}
		if(j!=n)
		{
			ans=max(ans,pre1[i]-i-j);
		}
		// pre[j] >= pre[i]
	}
	cout<<ans<<endl;
	return 0;
}

Subtask #1
0 / 20.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #2
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -

Subtask #3
0 / 40.0

# 결과 실행 시간 메모리 Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Incorrect 0 ms 348 KB Output isn't correct
5 Halted 0 ms 0 KB -