oj.uz

Submission #682042

# Submission time Handle Problem Language Result Execution time Memory
682042 2023-01-15T11:10:05 Z ethening Dango Maker (JOI18_dango_maker) C++17
33 / 100
 443 ms 262144 KB 
#include "bits/stdc++.h"
using namespace std;
using ll = long long;

// RGW
int n, m;
string s[3005];
int a[3005][3005], b[3005][3005];
vector<int> va[3000005];
int ma[3000005], mb[3000005];
bool visitb[3000005];
int cnt, cnt2;

stack<int> clrS;

bool dfs(int cur) {
	for (int nxt : va[cur]) {
		if (!visitb[nxt]) {
			visitb[nxt] = true;
			clrS.push(nxt);
			if (mb[nxt] == -1 || dfs(mb[nxt])) {
				ma[cur] = nxt;
				mb[nxt] = cur;
				return true;
			}
		}
	}
	return false;
}


int bipartite_matching() {
	memset(ma, -1, sizeof(ma));
	memset(mb, -1, sizeof(mb));
	int ret = 0;
	for (int i = 1; i <= cnt; i++) {
		while (!clrS.empty()) {
			visitb[clrS.top()] = false;
			clrS.pop();
		}
		if (dfs(i)) ++ret;
	}
	return ret;
}

int main() {
	cin.tie(0)->sync_with_stdio(0);
	cin >> n >> m;
	for (int i = 0; i < n; i++) {
		cin >> s[i];
	}
	cnt = cnt2 = 0;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (s[i][j] != 'R') continue;
			if (j + 2 < m) {
				if (s[i][j + 1] == 'G' && s[i][j + 2] == 'W') {
					++cnt;
					a[i][j] = cnt;
					a[i][j + 1] = cnt;
					a[i][j + 2] = cnt;
				}
			}
			if (i + 2 < n) {
				if (s[i + 1][j] == 'G' && s[i + 2][j] == 'W') {
					++cnt2;
					b[i][j]= cnt2;
					b[i + 1][j]= cnt2;
					b[i + 2][j]= cnt2;
				}
			}
		}
	}
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < m; j++) {
			if (a[i][j] != 0 && b[i][j] != 0) {
				va[a[i][j]].push_back(b[i][j]);
			}
		}
	}
	cout << cnt + cnt2 - bipartite_matching() << endl;
}

Subtask #1
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 94336 KB Output is correct
2 Correct 40 ms 94236 KB Output is correct
3 Correct 40 ms 94272 KB Output is correct
4 Correct 43 ms 94280 KB Output is correct
5 Correct 44 ms 94272 KB Output is correct
6 Correct 42 ms 94300 KB Output is correct
7 Correct 44 ms 94340 KB Output is correct
8 Correct 45 ms 94260 KB Output is correct
9 Correct 45 ms 94284 KB Output is correct
10 Correct 44 ms 94316 KB Output is correct
11 Correct 44 ms 94284 KB Output is correct
12 Correct 41 ms 94276 KB Output is correct
13 Correct 43 ms 94352 KB Output is correct
14 Correct 48 ms 94308 KB Output is correct
15 Correct 46 ms 94288 KB Output is correct
16 Correct 42 ms 94244 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 94336 KB Output is correct
2 Correct 40 ms 94236 KB Output is correct
3 Correct 40 ms 94272 KB Output is correct
4 Correct 43 ms 94280 KB Output is correct
5 Correct 44 ms 94272 KB Output is correct
6 Correct 42 ms 94300 KB Output is correct
7 Correct 44 ms 94340 KB Output is correct
8 Correct 45 ms 94260 KB Output is correct
9 Correct 45 ms 94284 KB Output is correct
10 Correct 44 ms 94316 KB Output is correct
11 Correct 44 ms 94284 KB Output is correct
12 Correct 41 ms 94276 KB Output is correct
13 Correct 43 ms 94352 KB Output is correct
14 Correct 48 ms 94308 KB Output is correct
15 Correct 46 ms 94288 KB Output is correct
16 Correct 42 ms 94244 KB Output is correct
17 Correct 43 ms 94256 KB Output is correct
18 Correct 41 ms 94284 KB Output is correct
19 Correct 43 ms 94360 KB Output is correct
20 Correct 45 ms 94412 KB Output is correct
21 Correct 43 ms 94412 KB Output is correct
22 Correct 42 ms 94312 KB Output is correct
23 Correct 44 ms 94420 KB Output is correct
24 Correct 43 ms 94304 KB Output is correct
25 Correct 42 ms 94256 KB Output is correct
26 Correct 42 ms 94320 KB Output is correct
27 Correct 42 ms 94412 KB Output is correct
28 Correct 43 ms 94356 KB Output is correct
29 Correct 49 ms 94324 KB Output is correct
30 Correct 41 ms 94320 KB Output is correct
31 Correct 41 ms 94292 KB Output is correct
32 Correct 42 ms 94284 KB Output is correct
33 Correct 42 ms 94404 KB Output is correct
34 Correct 42 ms 94376 KB Output is correct
35 Correct 46 ms 94428 KB Output is correct
36 Correct 43 ms 94304 KB Output is correct
37 Correct 43 ms 94368 KB Output is correct
38 Correct 44 ms 94356 KB Output is correct
39 Correct 43 ms 94408 KB Output is correct
40 Correct 41 ms 94408 KB Output is correct
41 Correct 42 ms 94420 KB Output is correct
42 Correct 43 ms 94392 KB Output is correct
43 Correct 47 ms 94340 KB Output is correct
44 Correct 50 ms 94412 KB Output is correct
45 Correct 42 ms 94420 KB Output is correct
46 Correct 45 ms 94340 KB Output is correct
47 Correct 43 ms 94548 KB Output is correct
48 Correct 42 ms 94352 KB Output is correct
49 Correct 41 ms 94412 KB Output is correct
50 Correct 43 ms 94416 KB Output is correct
51 Correct 47 ms 94312 KB Output is correct
52 Correct 43 ms 94324 KB Output is correct
53 Correct 45 ms 94420 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 42 ms 94336 KB Output is correct
2 Correct 40 ms 94236 KB Output is correct
3 Correct 40 ms 94272 KB Output is correct
4 Correct 43 ms 94280 KB Output is correct
5 Correct 44 ms 94272 KB Output is correct
6 Correct 42 ms 94300 KB Output is correct
7 Correct 44 ms 94340 KB Output is correct
8 Correct 45 ms 94260 KB Output is correct
9 Correct 45 ms 94284 KB Output is correct
10 Correct 44 ms 94316 KB Output is correct
11 Correct 44 ms 94284 KB Output is correct
12 Correct 41 ms 94276 KB Output is correct
13 Correct 43 ms 94352 KB Output is correct
14 Correct 48 ms 94308 KB Output is correct
15 Correct 46 ms 94288 KB Output is correct
16 Correct 42 ms 94244 KB Output is correct
17 Correct 43 ms 94256 KB Output is correct
18 Correct 41 ms 94284 KB Output is correct
19 Correct 43 ms 94360 KB Output is correct
20 Correct 45 ms 94412 KB Output is correct
21 Correct 43 ms 94412 KB Output is correct
22 Correct 42 ms 94312 KB Output is correct
23 Correct 44 ms 94420 KB Output is correct
24 Correct 43 ms 94304 KB Output is correct
25 Correct 42 ms 94256 KB Output is correct
26 Correct 42 ms 94320 KB Output is correct
27 Correct 42 ms 94412 KB Output is correct
28 Correct 43 ms 94356 KB Output is correct
29 Correct 49 ms 94324 KB Output is correct
30 Correct 41 ms 94320 KB Output is correct
31 Correct 41 ms 94292 KB Output is correct
32 Correct 42 ms 94284 KB Output is correct
33 Correct 42 ms 94404 KB Output is correct
34 Correct 42 ms 94376 KB Output is correct
35 Correct 46 ms 94428 KB Output is correct
36 Correct 43 ms 94304 KB Output is correct
37 Correct 43 ms 94368 KB Output is correct
38 Correct 44 ms 94356 KB Output is correct
39 Correct 43 ms 94408 KB Output is correct
40 Correct 41 ms 94408 KB Output is correct
41 Correct 42 ms 94420 KB Output is correct
42 Correct 43 ms 94392 KB Output is correct
43 Correct 47 ms 94340 KB Output is correct
44 Correct 50 ms 94412 KB Output is correct
45 Correct 42 ms 94420 KB Output is correct
46 Correct 45 ms 94340 KB Output is correct
47 Correct 43 ms 94548 KB Output is correct
48 Correct 42 ms 94352 KB Output is correct
49 Correct 41 ms 94412 KB Output is correct
50 Correct 43 ms 94416 KB Output is correct
51 Correct 47 ms 94312 KB Output is correct
52 Correct 43 ms 94324 KB Output is correct
53 Correct 45 ms 94420 KB Output is correct
54 Correct 45 ms 94296 KB Output is correct
55 Correct 45 ms 95692 KB Output is correct
56 Correct 49 ms 94520 KB Output is correct
57 Correct 48 ms 107084 KB Output is correct
58 Correct 60 ms 112364 KB Output is correct
59 Correct 164 ms 186936 KB Output is correct
60 Correct 169 ms 186840 KB Output is correct
61 Correct 165 ms 186912 KB Output is correct
62 Correct 40 ms 94284 KB Output is correct
63 Correct 161 ms 186120 KB Output is correct
64 Runtime error 443 ms 262144 KB Execution killed with signal 9
65 Halted 0 ms 0 KB -