Submission #52672

#	Time	Username	Problem	Language	Result	Execution time	Memory
52672		snat123	Sure Bet (CEOI17_sure)	C++14	20 / 100	3 ms	620 KiB

sure

#include<bits/stdc++.h>
 
using namespace std;
 
double a[100001], b[100001];

int main(){
    int n;
    cin >> n;
    for(int i=0; i<n; i++) cin >> a[i] >> b[i];
    sort(a, a+n+1);
	sort(b, b+n+1);
	int i=n, j=n;
	double x=0.0, y=0.0, res=0.0;
	while(i>=0 || j>=0){
		if(i<0 || x>y) y+=b[j--];
		else x+=a[i--];
		//x-=1;
		//y-=1;
		res=max(res, min(x, y)-(n-i)-(n-j));
	}
	printf("%.4lf", res);
    return 0;
} 

• Subtask 1: 20 / 20
• Subtask 2: 0 / 40
• Subtask 3: 0 / 40