oj.uz

Submission #1032537

# Submission time Handle Problem Language Result Execution time Memory
1032537 2024-07-24T01:03:29 Z juicy Dango Maker (JOI18_dango_maker) C++17
100 / 100
 214 ms 18208 KB 
#include <bits/stdc++.h>

using namespace std;

#ifdef LOCAL
#include "debug.h"
#else
#define debug(...) 42
#endif

const int N = 3005;

int n, m;
int ver[N], hor[N];
char a[N][N];
bool up[N], rt[N];

int solve(int N) {
	for (int i = 1; i <= N; ++i) {
		ver[i] = ver[i - 1];
		hor[i] = hor[i - 1];
		if (i > 1) {
			hor[i] = max(hor[i], ver[i - 2]);
			ver[i] = max(ver[i], hor[i - 2]);
		}
		ver[i] += up[i] && rt[i + 1];
		hor[i] += up[i + 1] && rt[i];
	}
	return max(ver[N], hor[N]);
}

bool inside(int i, int j, char c) {
	return 1 <= i && i <= n && 1 <= j && j <= m && a[i][j] == c;
}

int main() {
	ios::sync_with_stdio(false); cin.tie(nullptr);
	
	cin >> n >> m;
	for (int i = 1; i <= n; ++i) {
		for (int j = 1; j <= m; ++j) {
			cin >> a[i][j];
		}
	}
	int res = 0;
	for (int it = 1; it <= n + m + 1; ++it) {
		vector<int> cands;
		for (int j = 1; j < it; ++j) {
			if (inside(it - j, j, 'G')) {
				cands.push_back(j);
			}
 		}
		reverse(cands.begin(), cands.end());
		for (int i = 0; i < cands.size(); ) {
			int j = i;
			while (j < cands.size() && cands[i] - cands[j] == j - i) {
				++j;
			}
			for (int k = i; k < j; ++k) {
				up[k - i + 1] = inside(it - cands[k] - 1, cands[k], 'R');
				rt[k - i + 1] = inside(it - cands[k], cands[k] + 1, 'W');
			}
			up[j - i + 1] = inside(it - cands[j - 1], cands[j - 1] - 1, 'R');
			rt[j - i + 1] = inside(it - cands[j - 1] + 1, cands[j - 1], 'W');
			res += solve(j - i);
			i = j;
		}
	}
	cout << res;
	return 0;
}

Compilation message

dango_maker.cpp: In function 'int main()':
dango_maker.cpp:54:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   54 |   for (int i = 0; i < cands.size(); ) {
      |                   ~~^~~~~~~~~~~~~~
dango_maker.cpp:56:13: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   56 |    while (j < cands.size() && cands[i] - cands[j] == j - i) {
      |           ~~^~~~~~~~~~~~~~

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 352 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 352 KB Output is correct
25 Correct 0 ms 468 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 352 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 352 KB Output is correct
35 Correct 0 ms 460 KB Output is correct
36 Correct 0 ms 352 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 356 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 1 ms 352 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct

Subtask #3
67.0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 344 KB Output is correct
2 Correct 0 ms 348 KB Output is correct
3 Correct 0 ms 348 KB Output is correct
4 Correct 0 ms 348 KB Output is correct
5 Correct 0 ms 348 KB Output is correct
6 Correct 0 ms 348 KB Output is correct
7 Correct 0 ms 344 KB Output is correct
8 Correct 0 ms 348 KB Output is correct
9 Correct 0 ms 348 KB Output is correct
10 Correct 0 ms 348 KB Output is correct
11 Correct 0 ms 348 KB Output is correct
12 Correct 0 ms 348 KB Output is correct
13 Correct 0 ms 348 KB Output is correct
14 Correct 0 ms 348 KB Output is correct
15 Correct 0 ms 348 KB Output is correct
16 Correct 0 ms 348 KB Output is correct
17 Correct 1 ms 344 KB Output is correct
18 Correct 0 ms 348 KB Output is correct
19 Correct 0 ms 352 KB Output is correct
20 Correct 0 ms 352 KB Output is correct
21 Correct 0 ms 352 KB Output is correct
22 Correct 0 ms 348 KB Output is correct
23 Correct 0 ms 348 KB Output is correct
24 Correct 0 ms 352 KB Output is correct
25 Correct 0 ms 468 KB Output is correct
26 Correct 0 ms 348 KB Output is correct
27 Correct 0 ms 348 KB Output is correct
28 Correct 0 ms 348 KB Output is correct
29 Correct 0 ms 348 KB Output is correct
30 Correct 1 ms 352 KB Output is correct
31 Correct 1 ms 348 KB Output is correct
32 Correct 0 ms 348 KB Output is correct
33 Correct 0 ms 348 KB Output is correct
34 Correct 0 ms 352 KB Output is correct
35 Correct 0 ms 460 KB Output is correct
36 Correct 0 ms 352 KB Output is correct
37 Correct 0 ms 348 KB Output is correct
38 Correct 1 ms 344 KB Output is correct
39 Correct 0 ms 348 KB Output is correct
40 Correct 0 ms 348 KB Output is correct
41 Correct 0 ms 348 KB Output is correct
42 Correct 0 ms 344 KB Output is correct
43 Correct 1 ms 356 KB Output is correct
44 Correct 0 ms 348 KB Output is correct
45 Correct 0 ms 348 KB Output is correct
46 Correct 0 ms 344 KB Output is correct
47 Correct 1 ms 352 KB Output is correct
48 Correct 0 ms 348 KB Output is correct
49 Correct 0 ms 348 KB Output is correct
50 Correct 1 ms 348 KB Output is correct
51 Correct 0 ms 348 KB Output is correct
52 Correct 0 ms 348 KB Output is correct
53 Correct 0 ms 348 KB Output is correct
54 Correct 4 ms 344 KB Output is correct
55 Correct 7 ms 9052 KB Output is correct
56 Correct 4 ms 348 KB Output is correct
57 Correct 6 ms 6376 KB Output is correct
58 Correct 25 ms 4272 KB Output is correct
59 Correct 202 ms 18208 KB Output is correct
60 Correct 198 ms 18000 KB Output is correct
61 Correct 201 ms 17868 KB Output is correct
62 Correct 4 ms 348 KB Output is correct
63 Correct 214 ms 17640 KB Output is correct
64 Correct 116 ms 17928 KB Output is correct
65 Correct 123 ms 18112 KB Output is correct
66 Correct 124 ms 18116 KB Output is correct
67 Correct 133 ms 18004 KB Output is correct
68 Correct 131 ms 18000 KB Output is correct
69 Correct 133 ms 18000 KB Output is correct
70 Correct 13 ms 4188 KB Output is correct
71 Correct 13 ms 4160 KB Output is correct
72 Correct 13 ms 4408 KB Output is correct
73 Correct 16 ms 4184 KB Output is correct
74 Correct 13 ms 4188 KB Output is correct
75 Correct 16 ms 4188 KB Output is correct
76 Correct 13 ms 4348 KB Output is correct
77 Correct 13 ms 4188 KB Output is correct
78 Correct 13 ms 4188 KB Output is correct
79 Correct 14 ms 4412 KB Output is correct
80 Correct 13 ms 4188 KB Output is correct
81 Correct 13 ms 4188 KB Output is correct
82 Correct 15 ms 4420 KB Output is correct
83 Correct 13 ms 4356 KB Output is correct
84 Correct 14 ms 4188 KB Output is correct
85 Correct 14 ms 4188 KB Output is correct
86 Correct 14 ms 4184 KB Output is correct
87 Correct 14 ms 4188 KB Output is correct
88 Correct 14 ms 4416 KB Output is correct
89 Correct 13 ms 4188 KB Output is correct
90 Correct 13 ms 4188 KB Output is correct