Submission #559854

#	Time	Username	Problem	Language	Result	Execution time	Memory
559854		GioChkhaidze	Sure Bet (CEOI17_sure)	C++14	0 / 100	0 ms	212 KiB

sure

#include <bits/stdc++.h>
using namespace std;
double a[100005], b[100005];
main () {
	ios_base::sync_with_stdio(false);
	cin.tie(NULL), cout.tie(NULL);
	int n;
	cin >> n;
	for (int i = 1; i <= n; ++i) {
		cin >> a[i] >> b[i]; 
	}
	sort(a + 1, a + n + 1);
	sort(b + 1, b + n + 1);
	reverse(a + 1, a + n + 1);
	reverse(b + 1, b + n + 1);
	double ans = 0;
	int aid = 0, bid = 0;
	double Sa = 0, Sb = 0;
	while (aid < n || bid < n) {
		if (bid + 1 <= n && (aid == n || Sa >= Sb)) 
			Sb += b[++bid];
				else
			Sa += a[++aid];
		ans = max(ans, min(Sa, Sb) - (aid + bid));
	}
	cout << setprecision(5) << ans << "\n"; 
}

Compilation message (stderr)

sure.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main () {
      | ^~~~

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