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Submission #428396

# Submission time Handle Problem Language Result Execution time Memory
428396 2021-06-15T11:19:54 Z egekabas Carnival Tickets (IOI20_tickets) C++14
100 / 100
 950 ms 57448 KB 
#include "tickets.h"
#include <bits/stdc++.h>
#define all(x) (x).begin(), (x).end()
#define ff first
#define ss second
#define pb push_back
#define mp make_pair
using namespace std;
typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef pair<ll, ll> pll;
typedef pair<ull, ull> pull;
typedef pair<int, int> pii;
typedef pair<ld, ld> pld;

long long find_maximum(int k, vector<vector<int>> x) {
	int n = x.size();
	int m = x[0].size();
	vector<int> beg(n), fin(n);
	for(int i = 0; i < n; ++i){
		beg[i] = k-1;
		fin[i] = m-1;
	}
	set<pii, greater<pii>> s;
	for(int i = 0; i < n; ++i)
		s.insert({x[i][beg[i]]+x[i][fin[i]], i});
	for(int i = 0; i < n*k/2; ++i){
		int idx = s.begin()->ss;
		s.erase(s.begin());
		//cout << idx << ' ' << ' ' << beg[idx] << ' ' << fin[idx] << '\n';
		--fin[idx];
		--beg[idx];
		if(beg[idx] >= 0)
			s.insert({x[idx][beg[idx]]+x[idx][fin[idx]], idx});
	}
	ll ans = 0;
	for(int i = 0; i < n; ++i){
		++fin[i];
		for(int j = 0; j <= beg[i]; ++j)
			ans -= x[i][j];
		for(int j = fin[i]; j < m; ++j)
			ans += x[i][j];
	}

	vector<vector<int>> ret(n, vector<int>(m, -1));
	for(int round = 0; round < k; ++round){
		int curbig = 0;
		for(int i = 0; i < n; ++i)
			if(beg[i] < 0){
				ret[i][fin[i]] = round;
				++fin[i];
				++curbig;
			}
		for(int i = 0; i < n; ++i)
			if(beg[i] >= 0){
				if(curbig < n/2 && fin[i] < m){
					ret[i][fin[i]] = round;
					++fin[i];
					++curbig;
				}
				else{
					ret[i][beg[i]] = round;
					--beg[i];
				}
			}
	}

	
	allocate_tickets(ret);
	return ans;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 2 ms 716 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 460 KB Output is correct
5 Correct 26 ms 2868 KB Output is correct
6 Correct 728 ms 52880 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 2 ms 332 KB Output is correct
5 Correct 24 ms 2328 KB Output is correct
6 Correct 573 ms 52420 KB Output is correct
7 Correct 602 ms 52708 KB Output is correct
8 Correct 3 ms 460 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 204 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 8 ms 844 KB Output is correct
13 Correct 20 ms 2116 KB Output is correct
14 Correct 23 ms 2176 KB Output is correct
15 Correct 597 ms 55156 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 37 ms 3172 KB Output is correct
6 Correct 6 ms 716 KB Output is correct
7 Correct 8 ms 952 KB Output is correct
8 Correct 950 ms 57448 KB Output is correct
9 Correct 855 ms 53688 KB Output is correct
10 Correct 836 ms 53740 KB Output is correct
11 Correct 908 ms 57440 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 3 ms 436 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 460 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 3 ms 460 KB Output is correct
11 Correct 3 ms 428 KB Output is correct
12 Correct 3 ms 460 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 3 ms 436 KB Output is correct
4 Correct 3 ms 460 KB Output is correct
5 Correct 3 ms 460 KB Output is correct
6 Correct 3 ms 460 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 3 ms 460 KB Output is correct
10 Correct 3 ms 460 KB Output is correct
11 Correct 3 ms 428 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 26 ms 3276 KB Output is correct
14 Correct 26 ms 3188 KB Output is correct
15 Correct 31 ms 3140 KB Output is correct
16 Correct 34 ms 3264 KB Output is correct
17 Correct 2 ms 332 KB Output is correct
18 Correct 3 ms 460 KB Output is correct
19 Correct 2 ms 332 KB Output is correct
20 Correct 28 ms 2612 KB Output is correct
21 Correct 31 ms 3124 KB Output is correct
22 Correct 29 ms 2652 KB Output is correct
23 Correct 33 ms 3144 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 204 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 292 KB Output is correct
5 Correct 1 ms 292 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 1 ms 204 KB Output is correct
8 Correct 1 ms 204 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 2 ms 460 KB Output is correct
11 Correct 26 ms 2868 KB Output is correct
12 Correct 728 ms 52880 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 2 ms 332 KB Output is correct
17 Correct 24 ms 2328 KB Output is correct
18 Correct 573 ms 52420 KB Output is correct
19 Correct 602 ms 52708 KB Output is correct
20 Correct 3 ms 460 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 204 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 8 ms 844 KB Output is correct
25 Correct 20 ms 2116 KB Output is correct
26 Correct 23 ms 2176 KB Output is correct
27 Correct 597 ms 55156 KB Output is correct
28 Correct 1 ms 204 KB Output is correct
29 Correct 1 ms 204 KB Output is correct
30 Correct 1 ms 204 KB Output is correct
31 Correct 3 ms 460 KB Output is correct
32 Correct 37 ms 3172 KB Output is correct
33 Correct 6 ms 716 KB Output is correct
34 Correct 8 ms 952 KB Output is correct
35 Correct 950 ms 57448 KB Output is correct
36 Correct 855 ms 53688 KB Output is correct
37 Correct 836 ms 53740 KB Output is correct
38 Correct 908 ms 57440 KB Output is correct
39 Correct 1 ms 204 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 3 ms 436 KB Output is correct
42 Correct 3 ms 460 KB Output is correct
43 Correct 3 ms 460 KB Output is correct
44 Correct 3 ms 460 KB Output is correct
45 Correct 1 ms 204 KB Output is correct
46 Correct 1 ms 204 KB Output is correct
47 Correct 3 ms 460 KB Output is correct
48 Correct 3 ms 460 KB Output is correct
49 Correct 3 ms 428 KB Output is correct
50 Correct 3 ms 460 KB Output is correct
51 Correct 26 ms 3276 KB Output is correct
52 Correct 26 ms 3188 KB Output is correct
53 Correct 31 ms 3140 KB Output is correct
54 Correct 34 ms 3264 KB Output is correct
55 Correct 2 ms 332 KB Output is correct
56 Correct 3 ms 460 KB Output is correct
57 Correct 2 ms 332 KB Output is correct
58 Correct 28 ms 2612 KB Output is correct
59 Correct 31 ms 3124 KB Output is correct
60 Correct 29 ms 2652 KB Output is correct
61 Correct 33 ms 3144 KB Output is correct
62 Correct 69 ms 8384 KB Output is correct
63 Correct 71 ms 8340 KB Output is correct
64 Correct 96 ms 8540 KB Output is correct
65 Correct 338 ms 25832 KB Output is correct
66 Correct 395 ms 26416 KB Output is correct
67 Correct 7 ms 972 KB Output is correct
68 Correct 6 ms 716 KB Output is correct
69 Correct 642 ms 54820 KB Output is correct
70 Correct 767 ms 52404 KB Output is correct
71 Correct 901 ms 54280 KB Output is correct
72 Correct 681 ms 52208 KB Output is correct
73 Correct 856 ms 52092 KB Output is correct
74 Correct 630 ms 50720 KB Output is correct
75 Correct 739 ms 50688 KB Output is correct