Submission #973362

#	Time	Username	Problem	Language	Result	Execution time	Memory
973362		Captain_Georgia	Sure Bet (CEOI17_sure)	C++17	100 / 100	133 ms	5524 KiB

sure

#include <bits/stdc++.h>
using namespace std;
 
    
int TIME = clock();

#define file \
            freopen("in.txt" , "r" , stdin); \
            freopen("out.txt" , "w" , stdout);
 
void test_case () {
    int n;
    cin >> n;
    priority_queue<long double> p[2];
    for (int i = 0;i < n;i ++) {
        long double a , b;
        cin >> a >> b;
        p[0].push(a);
        p[1].push(b);
    }
    long double res = 0 , d[2] = {0 , 0};
    for (int i = 1;i <= n * 2;i ++) {
        if (p[0].size() == 0) {
            d[1] += p[1].top();
            p[1].pop();
        } else if (p[1].size() == 0) {
            d[0] += p[0].top();
            p[0].pop();
        } else if (d[0] <= d[1]) {
            d[0] += p[0].top();
            p[0].pop();
        } else {
            d[1] += p[1].top();
            p[1].pop();
        }
        res = max(res , min(d[0] , d[1]) - i);
    }
    cout.precision(4);
    cout << fixed << res << "\n";
}
 
int32_t main () {
 
    ///    file
    
 
    int t = 1;
    // cin >> t;
 
    while (t --) {
        test_case();
    }
 
    cerr << "\nTime elapsed: " << (clock() - TIME) * 1000.0 / CLOCKS_PER_SEC << " ms\n";
    return 0;
}

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