oj.uz

Submission #834854

# Submission time Handle Problem Language Result Execution time Memory
834854 2023-08-22T21:12:55 Z Johann Carnival Tickets (IOI20_tickets) C++14
100 / 100
 951 ms 110576 KB 
#include "tickets.h"
#include "bits/stdc++.h"
using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vvi;
typedef pair<int, int> pii;
typedef vector<pii> vpii;
typedef vector<vpii> vvpii;
#define sz(x) (int)(x).size()
#define all(x) (x).begin(), (x).end()

long long find_maximum(int K, std::vector<std::vector<int>> x)
{
	int N = x.size();
	int M = x[0].size();

	ll value = 0;
	vvi ans(N, vi(M, -1));
	vvi mapping(N, vi(M, -1)); // mapping of pairs
	vvi useNega(N, vi(M, 0));

	vpii gains;
	for (int i = 0; i < N; ++i)
	{
		vpii A(M);
		for (int j = 0; j < M; ++j)
			A[j] = {x[i][j], i * M + j};
		sort(all(A));
		int delta = M - K;
		for (int j = 0; j < K; ++j)
		{
			value -= A[j].first;
			useNega[i][A[j].second % M] = 1; // i use it as a negative
			mapping[i][A[j + delta].second % M] = A[j].second % M;
			gains.push_back({A[j].first + A[j + delta].first, A[j + delta].second});
		}
	}
	sort(all(gains));
	reverse(all(gains));
	gains.resize(K * N / 2);

	sort(all(gains), [&](const pii &a, const pii &b)
		 { return a.second / M < b.second / M; });

	vvi RoundUsed(N, vi(K, 0));
	for (int l = 0, i, j; l < K * N / 2; ++l)
	{
		pii tmp = gains[l];

		i = tmp.second / M, j = tmp.second % M;
		value += tmp.first;

		useNega[i][mapping[i][j]] = 0;
		ans[i][j] = l % K;
		RoundUsed[i][l % K] = 1;
	}

	for (int i = 0; i < N; ++i)
	{
		int k = 0;
		for (int j = 0; j < M; ++j)
			if (useNega[i][j])
			{
				while (RoundUsed[i][k])
					++k;
				ans[i][j] = k++;
			}
	}

	allocate_tickets(ans);

	return value;
}

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 852 KB Output is correct

Subtask #2
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 19 ms 3012 KB Output is correct
6 Correct 451 ms 69184 KB Output is correct

Subtask #3
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 1 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 2 ms 468 KB Output is correct
5 Correct 22 ms 3528 KB Output is correct
6 Correct 663 ms 79960 KB Output is correct
7 Correct 754 ms 84316 KB Output is correct
8 Correct 3 ms 724 KB Output is correct
9 Correct 1 ms 212 KB Output is correct
10 Correct 1 ms 212 KB Output is correct
11 Correct 1 ms 212 KB Output is correct
12 Correct 6 ms 1236 KB Output is correct
13 Correct 24 ms 3168 KB Output is correct
14 Correct 21 ms 3240 KB Output is correct
15 Correct 712 ms 87816 KB Output is correct

Subtask #4
14.0 / 14.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 212 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 32 ms 4696 KB Output is correct
6 Correct 5 ms 996 KB Output is correct
7 Correct 6 ms 1364 KB Output is correct
8 Correct 932 ms 110460 KB Output is correct
9 Correct 854 ms 103244 KB Output is correct
10 Correct 865 ms 103276 KB Output is correct
11 Correct 951 ms 110576 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 368 KB Output is correct
9 Correct 3 ms 560 KB Output is correct
10 Correct 2 ms 576 KB Output is correct
11 Correct 3 ms 568 KB Output is correct
12 Correct 3 ms 596 KB Output is correct

Subtask #6
23.0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 2 ms 492 KB Output is correct
3 Correct 2 ms 468 KB Output is correct
4 Correct 3 ms 596 KB Output is correct
5 Correct 2 ms 596 KB Output is correct
6 Correct 3 ms 596 KB Output is correct
7 Correct 1 ms 340 KB Output is correct
8 Correct 1 ms 368 KB Output is correct
9 Correct 3 ms 560 KB Output is correct
10 Correct 2 ms 576 KB Output is correct
11 Correct 3 ms 568 KB Output is correct
12 Correct 3 ms 596 KB Output is correct
13 Correct 18 ms 3924 KB Output is correct
14 Correct 19 ms 3948 KB Output is correct
15 Correct 27 ms 4228 KB Output is correct
16 Correct 32 ms 4728 KB Output is correct
17 Correct 1 ms 308 KB Output is correct
18 Correct 2 ms 596 KB Output is correct
19 Correct 2 ms 468 KB Output is correct
20 Correct 26 ms 3760 KB Output is correct
21 Correct 28 ms 4268 KB Output is correct
22 Correct 30 ms 4040 KB Output is correct
23 Correct 34 ms 4556 KB Output is correct

Subtask #7
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 1 ms 212 KB Output is correct
5 Correct 1 ms 340 KB Output is correct
6 Correct 2 ms 852 KB Output is correct
7 Correct 0 ms 212 KB Output is correct
8 Correct 1 ms 212 KB Output is correct
9 Correct 0 ms 212 KB Output is correct
10 Correct 2 ms 468 KB Output is correct
11 Correct 19 ms 3012 KB Output is correct
12 Correct 451 ms 69184 KB Output is correct
13 Correct 0 ms 212 KB Output is correct
14 Correct 1 ms 212 KB Output is correct
15 Correct 0 ms 212 KB Output is correct
16 Correct 2 ms 468 KB Output is correct
17 Correct 22 ms 3528 KB Output is correct
18 Correct 663 ms 79960 KB Output is correct
19 Correct 754 ms 84316 KB Output is correct
20 Correct 3 ms 724 KB Output is correct
21 Correct 1 ms 212 KB Output is correct
22 Correct 1 ms 212 KB Output is correct
23 Correct 1 ms 212 KB Output is correct
24 Correct 6 ms 1236 KB Output is correct
25 Correct 24 ms 3168 KB Output is correct
26 Correct 21 ms 3240 KB Output is correct
27 Correct 712 ms 87816 KB Output is correct
28 Correct 1 ms 212 KB Output is correct
29 Correct 1 ms 296 KB Output is correct
30 Correct 1 ms 212 KB Output is correct
31 Correct 3 ms 596 KB Output is correct
32 Correct 32 ms 4696 KB Output is correct
33 Correct 5 ms 996 KB Output is correct
34 Correct 6 ms 1364 KB Output is correct
35 Correct 932 ms 110460 KB Output is correct
36 Correct 854 ms 103244 KB Output is correct
37 Correct 865 ms 103276 KB Output is correct
38 Correct 951 ms 110576 KB Output is correct
39 Correct 0 ms 212 KB Output is correct
40 Correct 2 ms 492 KB Output is correct
41 Correct 2 ms 468 KB Output is correct
42 Correct 3 ms 596 KB Output is correct
43 Correct 2 ms 596 KB Output is correct
44 Correct 3 ms 596 KB Output is correct
45 Correct 1 ms 340 KB Output is correct
46 Correct 1 ms 368 KB Output is correct
47 Correct 3 ms 560 KB Output is correct
48 Correct 2 ms 576 KB Output is correct
49 Correct 3 ms 568 KB Output is correct
50 Correct 3 ms 596 KB Output is correct
51 Correct 18 ms 3924 KB Output is correct
52 Correct 19 ms 3948 KB Output is correct
53 Correct 27 ms 4228 KB Output is correct
54 Correct 32 ms 4728 KB Output is correct
55 Correct 1 ms 308 KB Output is correct
56 Correct 2 ms 596 KB Output is correct
57 Correct 2 ms 468 KB Output is correct
58 Correct 26 ms 3760 KB Output is correct
59 Correct 28 ms 4268 KB Output is correct
60 Correct 30 ms 4040 KB Output is correct
61 Correct 34 ms 4556 KB Output is correct
62 Correct 57 ms 10436 KB Output is correct
63 Correct 53 ms 10444 KB Output is correct
64 Correct 98 ms 12580 KB Output is correct
65 Correct 312 ms 43492 KB Output is correct
66 Correct 399 ms 49324 KB Output is correct
67 Correct 8 ms 1332 KB Output is correct
68 Correct 5 ms 980 KB Output is correct
69 Correct 456 ms 90900 KB Output is correct
70 Correct 681 ms 97304 KB Output is correct
71 Correct 907 ms 110504 KB Output is correct
72 Correct 897 ms 93184 KB Output is correct
73 Correct 842 ms 105228 KB Output is correct
74 Correct 655 ms 82624 KB Output is correct
75 Correct 662 ms 94976 KB Output is correct