oj.uz

Submission #452041

# Submission time Handle Problem Language Result Execution time Memory
452041 2021-08-03T16:31:03 Z rainboy Carnival Tickets (IOI20_tickets) C++14
100 / 100
 1225 ms 93696 KB 
#include "tickets.h"
#include <stdio.h>

using namespace std;

typedef vector<int> vi;

const int N = 1500, M = 1500;

unsigned int X = 12345;

int rand_() {
	return (X *= 3) >> 1;
}

int aa_[N * M], hh[N * M], ii[N];

void sort(int *ii, int l, int r) {
	while (l < r) {
		int i = l, j = l, k = r, i_ = ii[l + rand_() % (r - l)], tmp;

		while (j < k) {
			int c = aa_[ii[j]] == aa_[i_] ? i_ - ii[j] : (aa_[ii[j]] < aa_[i_] ? -1 : 1);

			if (c == 0)
				j++;
			else if (c < 0) {
				tmp = ii[i], ii[i] = ii[j], ii[j] = tmp;
				i++, j++;
			} else {
				k--;
				tmp = ii[j], ii[j] = ii[k], ii[k] = tmp;
			}
		}
		sort(ii, l, i);
		l = k;
	}
}

int ll[N], rr[N], kk[N];

long long find_maximum(int k, std::vector<std::vector<int>> aa) {
	int n = aa.size(), m = aa[0].size();
	vector<vi> ss(n);
	int h, i, j;
	long long ans;

	for (i = 0; i < n; i++) {
		ss[i].resize(m);
		for (j = 0; j < m; j++)
			ss[i][j] = -1;
	}
	ans = 0;
	for (i = 0; i < n; i++)
		for (j = 0; j < k; j++) {
			ss[i][k - 1 - j] = 0, ans -= aa[i][k - 1 - j];
			aa_[i * k + j] = aa[i][k - 1 - j] + aa[i][m - 1 - j];
		}
	for (h = 0; h < n * k; h++)
		hh[h] = h;
	sort(hh, 0, n * k);
	for (h = n * k - 1; h >= n * k / 2; h--) {
		i = hh[h] / k, j = hh[h] % k;
		ss[i][k - 1 - j] = -1, ss[i][m - 1 - j] = 1;
		ans += aa_[hh[h]];
	}
	for (i = 0; i < n; i++) {
		ll[i] = 0, rr[i] = m - 1;
		for (j = 0; j < m; j++)
			if (ss[i][j] == 0)
				kk[i]++;
	}
	while (k--) {
		for (i = 0; i < n; i++) {
			aa_[i] = kk[i];
			ii[i] = i;
		}
		sort(ii, 0, n);
		for (i = 0; i < n; i++) {
			int i_ = ii[i];

			if (i < n / 2)
				ss[i_][rr[i_]--] = k;
			else
				ss[i_][ll[i_]++] = k, kk[i_]--;
		}
	}
	allocate_tickets(ss);
	return ans;
}

Subtask #1
11.0 / 11.0

# 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 332 KB Output is correct
5 Correct 1 ms 332 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 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 2 ms 460 KB Output is correct
5 Correct 25 ms 2320 KB Output is correct
6 Correct 600 ms 51368 KB Output is correct

Subtask #3
14.0 / 14.0

# 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 2 ms 460 KB Output is correct
5 Correct 30 ms 2820 KB Output is correct
6 Correct 761 ms 65468 KB Output is correct
7 Correct 849 ms 68800 KB Output is correct
8 Correct 4 ms 588 KB Output is correct
9 Correct 1 ms 204 KB Output is correct
10 Correct 1 ms 296 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 8 ms 944 KB Output is correct
13 Correct 27 ms 2548 KB Output is correct
14 Correct 28 ms 2632 KB Output is correct
15 Correct 884 ms 71876 KB Output is correct

Subtask #4
14.0 / 14.0

# 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 3 ms 460 KB Output is correct
5 Correct 45 ms 3112 KB Output is correct
6 Correct 6 ms 716 KB Output is correct
7 Correct 9 ms 972 KB Output is correct
8 Correct 1212 ms 71808 KB Output is correct
9 Correct 1203 ms 66964 KB Output is correct
10 Correct 1138 ms 67132 KB Output is correct
11 Correct 1225 ms 71860 KB Output is correct

Subtask #5
12.0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 204 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 2 ms 456 KB Output is correct
4 Correct 2 ms 480 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 332 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 460 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 0 ms 204 KB Output is correct
2 Correct 2 ms 460 KB Output is correct
3 Correct 2 ms 456 KB Output is correct
4 Correct 2 ms 480 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 332 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 460 KB Output is correct
12 Correct 3 ms 460 KB Output is correct
13 Correct 24 ms 2316 KB Output is correct
14 Correct 25 ms 2372 KB Output is correct
15 Correct 35 ms 2628 KB Output is correct
16 Correct 44 ms 3100 KB Output is correct
17 Correct 1 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 40 ms 2772 KB Output is correct
21 Correct 37 ms 3616 KB Output is correct
22 Correct 41 ms 3268 KB Output is correct
23 Correct 42 ms 3708 KB Output is correct

Subtask #7
10.0 / 10.0

# 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 332 KB Output is correct
5 Correct 1 ms 332 KB Output is correct
6 Correct 2 ms 716 KB Output is correct
7 Correct 0 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 2 ms 460 KB Output is correct
11 Correct 25 ms 2320 KB Output is correct
12 Correct 600 ms 51368 KB Output is correct
13 Correct 0 ms 204 KB Output is correct
14 Correct 0 ms 204 KB Output is correct
15 Correct 0 ms 204 KB Output is correct
16 Correct 2 ms 460 KB Output is correct
17 Correct 30 ms 2820 KB Output is correct
18 Correct 761 ms 65468 KB Output is correct
19 Correct 849 ms 68800 KB Output is correct
20 Correct 4 ms 588 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 296 KB Output is correct
23 Correct 1 ms 204 KB Output is correct
24 Correct 8 ms 944 KB Output is correct
25 Correct 27 ms 2548 KB Output is correct
26 Correct 28 ms 2632 KB Output is correct
27 Correct 884 ms 71876 KB Output is correct
28 Correct 0 ms 204 KB Output is correct
29 Correct 0 ms 204 KB Output is correct
30 Correct 0 ms 204 KB Output is correct
31 Correct 3 ms 460 KB Output is correct
32 Correct 45 ms 3112 KB Output is correct
33 Correct 6 ms 716 KB Output is correct
34 Correct 9 ms 972 KB Output is correct
35 Correct 1212 ms 71808 KB Output is correct
36 Correct 1203 ms 66964 KB Output is correct
37 Correct 1138 ms 67132 KB Output is correct
38 Correct 1225 ms 71860 KB Output is correct
39 Correct 0 ms 204 KB Output is correct
40 Correct 2 ms 460 KB Output is correct
41 Correct 2 ms 456 KB Output is correct
42 Correct 2 ms 480 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 332 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 460 KB Output is correct
50 Correct 3 ms 460 KB Output is correct
51 Correct 24 ms 2316 KB Output is correct
52 Correct 25 ms 2372 KB Output is correct
53 Correct 35 ms 2628 KB Output is correct
54 Correct 44 ms 3100 KB Output is correct
55 Correct 1 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 40 ms 2772 KB Output is correct
59 Correct 37 ms 3616 KB Output is correct
60 Correct 41 ms 3268 KB Output is correct
61 Correct 42 ms 3708 KB Output is correct
62 Correct 70 ms 8352 KB Output is correct
63 Correct 70 ms 8536 KB Output is correct
64 Correct 125 ms 10532 KB Output is correct
65 Correct 396 ms 37104 KB Output is correct
66 Correct 519 ms 41412 KB Output is correct
67 Correct 9 ms 1100 KB Output is correct
68 Correct 7 ms 812 KB Output is correct
69 Correct 612 ms 73176 KB Output is correct
70 Correct 900 ms 82796 KB Output is correct
71 Correct 1205 ms 93696 KB Output is correct
72 Correct 1084 ms 76904 KB Output is correct
73 Correct 1150 ms 89136 KB Output is correct
74 Correct 833 ms 68420 KB Output is correct
75 Correct 896 ms 80788 KB Output is correct