oj.uz

Submission #955211

# Submission time Handle Problem Language Result Execution time Memory
955211 2024-03-29T16:47:37 Z 42kangaroo Soccer Stadium (IOI23_soccer) C++17
65.5 / 100
 329 ms 32080 KB 
#include "soccer.h"
#include "bits/stdc++.h"


int biggest_stadium(int N, std::vector<std::vector<int>> F) {
	using namespace std;
	using dp_t = vector<vector<vector<vector<int>>>>;
	bool allPos = true;
	int su = 0;
	for (int i = 0; i < N; ++i) {
		for (int j = 0; j < N; ++j) {
			su += F[i][j];
		}
	}
	if (su == 1) {
		for (int i = 0; i < N; ++i) {
			for (int j = 0; j < N; ++j) {
				if (F[i][j] == 1) {
					return N*N - min(i + 1, N - i)*min(j + 1, N - j);
				}
			}
		}
	} else {
		vector<pair<int, int>> ra(N);
		vector<int> les(N);
		for (int i = 0; i < N; ++i) {
			ra[i].first = 0;
			for (; ra[i].first < N; ra[i].first++) {
				if (F[i][ra[i].first] == 0) break;
			}
			ra[i].second = N - 1;
			for (; ra[i].second >= 0; ra[i].second--) {
				if (F[i][ra[i].second] == 0) break;
			}
			les[i] = ra[i].second - ra[i].first + 1;
			for (int j = ra[i].first; j <= ra[i].second; ++j) {
				if (F[i][j] == 1) allPos = false;
			}
			if (!allPos) break;
		}
		int tot = 0;
		int maI = max_element(les.begin(), les.end()) - les.begin();
		pair<int, int> actRa = ra[maI];
		pair<int, int> oRa = {maI, maI};
		tot = les[maI];
		while (allPos && oRa != make_pair(0, N - 1)) {
			int ne = oRa.first - 1;
			if (ne < 0 || (oRa.second < N - 1 && les[ne] < les[oRa.second + 1])) ne = oRa.second + 1;
			if (les[ne] < 0) break;
			if (actRa.first > ra[ne].first || actRa.second < ra[ne].second) allPos = false;
			actRa = ra[ne];
			tot += les[ne];
			oRa = {min(oRa.first, ne), max(oRa.second, ne)};
		}
		if (allPos) return tot;
		else if (N > 50) return 0;
		else {
			vector<vector<int>> prefS(N, vector<int>(N + 1, 0));
			for (int i = 0; i < N; ++i) {
				for (int j = 0; j < N; ++j) {
					prefS[i][j + 1] = prefS[i][j] + F[i][j];
				}
			}
			dp_t dp(N, vector<vector<vector<int>>>(N, vector<vector<int>>(N, vector<int>(N, -N * N))));
			int ma = 0;
			for (int i = N - 1; i >= 0; --i) {
				for (int j = i; j < N; ++j) {
					for (int k = 0; k < N; ++k) {
						for (int l = N - 1; l >= k; --l) {
							if (l < N - 1) dp[i][j][k][l] = dp[i][j][k][l + 1];
							if (k > 0) dp[i][j][k][l] = max(dp[i][j][k][l], dp[i][j][k - 1][l]);
							if (i == j) {
								if (prefS[i][l + 1] - prefS[i][k] == 0) dp[i][j][k][l] = max(dp[i][j][k][l], l - k + 1);
							} else {
								if (prefS[i][l + 1] - prefS[i][k] == 0) dp[i][j][k][l] = max(dp[i][j][k][l], l - k + 1 +
								                                                                             dp[i +
								                                                                                1][j][k][l]);
								if (prefS[j][l + 1] - prefS[j][k] == 0) dp[i][j][k][l] = max(dp[i][j][k][l], l - k + 1 +
								                                                                             dp[i][j -
								                                                                                   1][k][l]);
							}
							ma = max(ma, dp[i][j][k][l]);
						}
					}
				}
			}
			return ma;
		}
	}
}

Compilation message

soccer.cpp: In function 'int biggest_stadium(int, std::vector<std::vector<int> >)':
soccer.cpp:90:1: warning: control reaches end of non-void function [-Wreturn-type]
   90 | }
      | ^

Subtask #0
0.0 / 0.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 1 ms 348 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 1 ms 344 KB ok
7 Correct 1 ms 348 KB ok
8 Correct 15 ms 2396 KB ok
9 Correct 237 ms 31780 KB ok

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 348 KB ok
3 Correct 0 ms 344 KB ok
4 Correct 0 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 600 KB ok
9 Correct 1 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 1 ms 348 KB ok
13 Correct 0 ms 348 KB ok

Subtask #3
22.0 / 22.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 0 ms 344 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 600 KB ok
10 Correct 1 ms 348 KB ok
11 Correct 0 ms 348 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 1 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 1 ms 544 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 0 ms 348 KB ok
18 Correct 1 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 0 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Correct 1 ms 344 KB ok

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 600 KB ok
12 Correct 1 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 1 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 1 ms 544 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 1 ms 344 KB ok
29 Correct 0 ms 348 KB ok
30 Correct 4 ms 4444 KB ok
31 Correct 4 ms 4444 KB ok
32 Correct 4 ms 4444 KB ok
33 Correct 4 ms 4444 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 0 ms 348 KB ok
36 Correct 4 ms 4444 KB ok
37 Correct 4 ms 4440 KB ok
38 Correct 4 ms 4444 KB ok
39 Correct 4 ms 4444 KB ok
40 Correct 5 ms 4700 KB ok
41 Correct 4 ms 4444 KB ok

Subtask #5
4.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 344 KB ok
7 Correct 0 ms 348 KB ok
8 Correct 0 ms 348 KB ok
9 Correct 0 ms 348 KB ok
10 Correct 0 ms 348 KB ok
11 Correct 0 ms 600 KB ok
12 Correct 1 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 1 ms 348 KB ok
16 Correct 0 ms 348 KB ok
17 Correct 1 ms 544 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 0 ms 348 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 0 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 1 ms 344 KB ok
29 Correct 0 ms 348 KB ok
30 Correct 4 ms 4444 KB ok
31 Correct 4 ms 4444 KB ok
32 Correct 4 ms 4444 KB ok
33 Correct 4 ms 4444 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 0 ms 348 KB ok
36 Correct 4 ms 4444 KB ok
37 Correct 4 ms 4440 KB ok
38 Correct 4 ms 4444 KB ok
39 Correct 4 ms 4444 KB ok
40 Correct 5 ms 4700 KB ok
41 Correct 4 ms 4444 KB ok
42 Partially correct 15 ms 2392 KB partial
43 Partially correct 16 ms 2396 KB partial
44 Partially correct 15 ms 2396 KB partial
45 Partially correct 15 ms 2396 KB partial
46 Partially correct 21 ms 2388 KB partial
47 Partially correct 15 ms 2392 KB partial
48 Correct 16 ms 2396 KB ok
49 Partially correct 16 ms 2392 KB partial
50 Partially correct 16 ms 2200 KB partial
51 Partially correct 16 ms 2396 KB partial
52 Partially correct 17 ms 2396 KB partial
53 Partially correct 21 ms 2388 KB partial
54 Partially correct 16 ms 2396 KB partial
55 Partially correct 16 ms 2392 KB partial
56 Partially correct 17 ms 2396 KB partial
57 Partially correct 15 ms 2396 KB partial
58 Partially correct 15 ms 2396 KB partial
59 Partially correct 15 ms 2392 KB partial

Subtask #6
7.5 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB ok
2 Correct 0 ms 344 KB ok
3 Correct 0 ms 348 KB ok
4 Correct 1 ms 348 KB ok
5 Correct 0 ms 348 KB ok
6 Correct 0 ms 348 KB ok
7 Correct 1 ms 344 KB ok
8 Correct 1 ms 348 KB ok
9 Correct 15 ms 2396 KB ok
10 Correct 237 ms 31780 KB ok
11 Correct 0 ms 344 KB ok
12 Correct 0 ms 348 KB ok
13 Correct 0 ms 348 KB ok
14 Correct 0 ms 348 KB ok
15 Correct 0 ms 348 KB ok
16 Correct 0 ms 600 KB ok
17 Correct 1 ms 348 KB ok
18 Correct 0 ms 348 KB ok
19 Correct 0 ms 348 KB ok
20 Correct 1 ms 348 KB ok
21 Correct 0 ms 348 KB ok
22 Correct 1 ms 544 KB ok
23 Correct 0 ms 348 KB ok
24 Correct 0 ms 348 KB ok
25 Correct 1 ms 348 KB ok
26 Correct 0 ms 348 KB ok
27 Correct 0 ms 348 KB ok
28 Correct 0 ms 348 KB ok
29 Correct 0 ms 348 KB ok
30 Correct 0 ms 348 KB ok
31 Correct 0 ms 348 KB ok
32 Correct 0 ms 348 KB ok
33 Correct 1 ms 344 KB ok
34 Correct 0 ms 348 KB ok
35 Correct 4 ms 4444 KB ok
36 Correct 4 ms 4444 KB ok
37 Correct 4 ms 4444 KB ok
38 Correct 4 ms 4444 KB ok
39 Correct 0 ms 348 KB ok
40 Correct 0 ms 348 KB ok
41 Correct 4 ms 4444 KB ok
42 Correct 4 ms 4440 KB ok
43 Correct 4 ms 4444 KB ok
44 Correct 4 ms 4444 KB ok
45 Correct 5 ms 4700 KB ok
46 Correct 4 ms 4444 KB ok
47 Partially correct 15 ms 2392 KB partial
48 Partially correct 16 ms 2396 KB partial
49 Partially correct 15 ms 2396 KB partial
50 Partially correct 15 ms 2396 KB partial
51 Partially correct 21 ms 2388 KB partial
52 Partially correct 15 ms 2392 KB partial
53 Correct 16 ms 2396 KB ok
54 Partially correct 16 ms 2392 KB partial
55 Partially correct 16 ms 2200 KB partial
56 Partially correct 16 ms 2396 KB partial
57 Partially correct 17 ms 2396 KB partial
58 Partially correct 21 ms 2388 KB partial
59 Partially correct 16 ms 2396 KB partial
60 Partially correct 16 ms 2392 KB partial
61 Partially correct 17 ms 2396 KB partial
62 Partially correct 15 ms 2396 KB partial
63 Partially correct 15 ms 2396 KB partial
64 Partially correct 15 ms 2392 KB partial
65 Partially correct 249 ms 31812 KB partial
66 Partially correct 274 ms 31824 KB partial
67 Partially correct 297 ms 31772 KB partial
68 Partially correct 236 ms 31824 KB partial
69 Partially correct 238 ms 31832 KB partial
70 Partially correct 236 ms 31764 KB partial
71 Partially correct 293 ms 31824 KB partial
72 Partially correct 230 ms 31780 KB partial
73 Correct 243 ms 31828 KB ok
74 Correct 249 ms 31828 KB ok
75 Partially correct 245 ms 31828 KB partial
76 Partially correct 249 ms 31764 KB partial
77 Partially correct 255 ms 31828 KB partial
78 Partially correct 240 ms 31828 KB partial
79 Partially correct 260 ms 31772 KB partial
80 Partially correct 304 ms 31768 KB partial
81 Partially correct 255 ms 31764 KB partial
82 Partially correct 248 ms 31760 KB partial
83 Partially correct 256 ms 31828 KB partial
84 Partially correct 329 ms 31764 KB partial
85 Partially correct 257 ms 31776 KB partial
86 Partially correct 258 ms 31768 KB partial
87 Partially correct 275 ms 31768 KB partial
88 Partially correct 248 ms 31764 KB partial
89 Partially correct 236 ms 31824 KB partial
90 Partially correct 245 ms 31764 KB partial
91 Partially correct 237 ms 31768 KB partial
92 Partially correct 258 ms 31760 KB partial
93 Partially correct 258 ms 32080 KB partial
94 Partially correct 252 ms 31828 KB partial
95 Partially correct 284 ms 31764 KB partial
96 Partially correct 261 ms 31764 KB partial
97 Partially correct 292 ms 31768 KB partial
98 Partially correct 251 ms 31824 KB partial
99 Partially correct 238 ms 31768 KB partial
100 Partially correct 241 ms 31764 KB partial
101 Partially correct 233 ms 31824 KB partial
102 Partially correct 236 ms 31848 KB partial
103 Partially correct 236 ms 31768 KB partial
104 Partially correct 235 ms 31784 KB partial
105 Partially correct 242 ms 31764 KB partial
106 Partially correct 232 ms 31760 KB partial
107 Partially correct 233 ms 31824 KB partial
108 Partially correct 266 ms 31828 KB partial
109 Partially correct 268 ms 31824 KB partial