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Submission #498367

# Submission time Handle Problem Language Result Execution time Memory
498367 2021-12-25T05:23:17 Z mansur Sure Bet (CEOI17_sure) C++17
60 / 100
 2000 ms 1984 KB 
#include<bits/stdc++.h>	
/* 
#pragma optimize ("g",on)
#pragma GCC optimize ("inline")
#pragma GCC optimize ("Ofast")
#pragma GCC optimize ("unroll-loops")
#pragma GCC optimize ("03")
#pragma GCC target ("sse,sse2,sse3,ssse3,sse4,popcnt,abm,avx2,mmx,fma,avx,tune=native")
#pragma comment(linker, "/stack:200000000")
*/ 
//01001101 01100001 01101011 01101000 01100001  01100111 01100001 01111001 
 
using namespace std;
 
#define all(a) a.begin(), a.end()                                                   
#define rall(a) a.rbegin(), a.rend()
#define ll long long
#define pb push_back
#define sz(a) a.size()
#define nl '\n'
#define popb pop_back()                                                                   
#define ld double
#define ull unsigned long long
#define ff first                                         
#define ss second  
#define fix fixed << setprecision
#define pii pair<int, int>                          
#define E exit (0)
#define int long long
 
const int inf = 1e15, N = 2e5 + 5, mod = 998244353;                    
 
vector<pii> dir = {{1, 0}, {0, 1}, {-1, 0}, {0, -1}};

main() {                                                         
	//freopen("triangles.in", "r", stdin);                                                                                     
	//freopen("triangles.out", "w", stdout);                                                                                     
	ios_base::sync_with_stdio(NULL);                                                                                        
	cin.tie(NULL);
	int n;
	cin >> n;
	vector<double> a, b;
	for (int i = 1; i <= n; i++) {
		double x, y;
		cin >> x >> y;
		a.pb(x);
		b.pb(y);
	}
	sort(rall(a));
	sort(rall(b));
	double ans = 0;
	for (int t = 1; t <= n * 2; t++) {
		double l = -t, r = -t;
		int i = 0, j = 0;
		while (i + j < t) {
			if (l <= r) {
				l += a[i++];
			}else r += b[j++];
		}
		ans = max(ans, min(l, r));
	}
	cout << fix(4) << ans;
}

Compilation message

sure.cpp:35:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
   35 | main() {
      | ^~~~

Subtask #1
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct

Subtask #2
40.0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 3 ms 332 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 3 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct

Subtask #3
0 / 40.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 0 ms 204 KB Output is correct
3 Correct 0 ms 204 KB Output is correct
4 Correct 0 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 0 ms 204 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 0 ms 204 KB Output is correct
9 Correct 0 ms 204 KB Output is correct
10 Correct 0 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 3 ms 332 KB Output is correct
13 Correct 3 ms 336 KB Output is correct
14 Correct 3 ms 332 KB Output is correct
15 Correct 3 ms 332 KB Output is correct
16 Correct 3 ms 332 KB Output is correct
17 Execution timed out 2088 ms 1984 KB Time limit exceeded
18 Halted 0 ms 0 KB -