Submission #321849

#	Time	Username	Problem	Language	Result	Execution time	Memory
321849		Karen124	Sure Bet (CEOI17_sure)	C++14	0 / 100	1 ms	364 KiB

sure

#pragma GCC optimize("O2")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
     
using namespace std;
     
#define ll long long int 
#define F first
#define S second
#define pb push_back
 
const ll N = 1e5 + 10;
const ll LOG = 20;
const ll MOD = 1e9 + 7;
const ll INF = 1e9 + 10;
int n;
double a[N], b[N], ans = -2.0 * N;
int main() {
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    cin >> n;
    for(int i=1;i<=n;i++){
		cin >> a[i] >> b[i];
		a[i] -= 1.0; b[i] -= 1.0;
	}
    sort(a + 1, a + n + 1);
    reverse(a + 1, a + n + 1);
	sort(b + 1, b + n + 1);
	reverse(b + 1, b + n + 1);
    for (int i = 1; i <= n; i++){
        a[i] += a[i - 1];
        b[i] += b[i - 1];
    }
    for (int i = 1; i <= n; i++){
        for (int j = 1; j <= n; j++){
            ans = max(ans, min(a[i] - (double)j, b[j] - (double)i));
        }
    }
    cout << fixed << setprecision(4) << ans << '\n';
    return 0;
}

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