Submission #872661

#	Time	Username	Problem	Language	Result	Execution time	Memory
872661		vjudge1	Sure Bet (CEOI17_sure)	C++11	0 / 100	1 ms	348 KiB

sure

#include <bits/stdc++.h>
using namespace std;
using ld = long double;


int main() {
	int n;
	cin >> n;

	vector<ld> v1(n), v2(n);
	for(int i = 0; i<n; i++) {
		ld a, b;
		cin >> a >> b;

		v1[i] = a;
		v2[i] = b;
	}

	sort(v1.begin(), v1.end()); sort(v2.begin(), v2.end());
	reverse(v1.begin(), v1.end()); reverse(v2.begin(), v2.end());

	ld ptr1 = 0, ptr2 = 0;
	ld val1 = 0, val2 = 0, rem = 0;
	ld ans = 0;

	/*
	for(int i : v1) cout << i << " ";
	cout << "\n";
	for(int i : v2) cout << i << " ";
	cout << "\n";
	*/
	while(ptr1 <= n && ptr2 <= n) {
		if(val1 < val2) {
			val1 += v1[ptr1];
			ptr1++;
			rem += 1;
		}

		else{
			val2+= v2[ptr2];
			ptr2++;
			rem += 1;
		}

		ans = max(ans, min(val1, val2) - rem);

	}
	printf("%.4LF", ans);


}

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