oj.uz

Submission #682044

# Submission time Handle Problem Language Result Execution time Memory
682044 2023-01-15T11:14:58 Z ethening Dango Maker (JOI18_dango_maker) C++17
33 / 100
 143 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[9000005];
int ma[9000005], mb[9000005];
bool visitb[9000005];
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] == 0 || dfs(mb[nxt])) {
				ma[cur] = nxt;
				mb[nxt] = cur;
				return true;
			}
		}
	}
	return false;
}


int bipartite_matching() {
	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 98 ms 211724 KB Output is correct
2 Correct 117 ms 211736 KB Output is correct
3 Correct 104 ms 211756 KB Output is correct
4 Correct 99 ms 211688 KB Output is correct
5 Correct 96 ms 211716 KB Output is correct
6 Correct 97 ms 211724 KB Output is correct
7 Correct 96 ms 211804 KB Output is correct
8 Correct 96 ms 211784 KB Output is correct
9 Correct 97 ms 211756 KB Output is correct
10 Correct 106 ms 211656 KB Output is correct
11 Correct 96 ms 211788 KB Output is correct
12 Correct 96 ms 211792 KB Output is correct
13 Correct 97 ms 211720 KB Output is correct
14 Correct 107 ms 211780 KB Output is correct
15 Correct 98 ms 211756 KB Output is correct
16 Correct 99 ms 211740 KB Output is correct

Subtask #2
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 211724 KB Output is correct
2 Correct 117 ms 211736 KB Output is correct
3 Correct 104 ms 211756 KB Output is correct
4 Correct 99 ms 211688 KB Output is correct
5 Correct 96 ms 211716 KB Output is correct
6 Correct 97 ms 211724 KB Output is correct
7 Correct 96 ms 211804 KB Output is correct
8 Correct 96 ms 211784 KB Output is correct
9 Correct 97 ms 211756 KB Output is correct
10 Correct 106 ms 211656 KB Output is correct
11 Correct 96 ms 211788 KB Output is correct
12 Correct 96 ms 211792 KB Output is correct
13 Correct 97 ms 211720 KB Output is correct
14 Correct 107 ms 211780 KB Output is correct
15 Correct 98 ms 211756 KB Output is correct
16 Correct 99 ms 211740 KB Output is correct
17 Correct 110 ms 211736 KB Output is correct
18 Correct 105 ms 211784 KB Output is correct
19 Correct 112 ms 211788 KB Output is correct
20 Correct 96 ms 211776 KB Output is correct
21 Correct 94 ms 211904 KB Output is correct
22 Correct 97 ms 211788 KB Output is correct
23 Correct 99 ms 211760 KB Output is correct
24 Correct 97 ms 211848 KB Output is correct
25 Correct 97 ms 211656 KB Output is correct
26 Correct 98 ms 211676 KB Output is correct
27 Correct 96 ms 211804 KB Output is correct
28 Correct 106 ms 211788 KB Output is correct
29 Correct 108 ms 211760 KB Output is correct
30 Correct 96 ms 211724 KB Output is correct
31 Correct 106 ms 211736 KB Output is correct
32 Correct 98 ms 211724 KB Output is correct
33 Correct 103 ms 211788 KB Output is correct
34 Correct 100 ms 211788 KB Output is correct
35 Correct 96 ms 211792 KB Output is correct
36 Correct 107 ms 211796 KB Output is correct
37 Correct 104 ms 211856 KB Output is correct
38 Correct 97 ms 211852 KB Output is correct
39 Correct 97 ms 211916 KB Output is correct
40 Correct 95 ms 211788 KB Output is correct
41 Correct 98 ms 211816 KB Output is correct
42 Correct 99 ms 211844 KB Output is correct
43 Correct 95 ms 211840 KB Output is correct
44 Correct 100 ms 211816 KB Output is correct
45 Correct 99 ms 211860 KB Output is correct
46 Correct 97 ms 211744 KB Output is correct
47 Correct 94 ms 211956 KB Output is correct
48 Correct 97 ms 211884 KB Output is correct
49 Correct 99 ms 211788 KB Output is correct
50 Correct 108 ms 211812 KB Output is correct
51 Correct 97 ms 211852 KB Output is correct
52 Correct 102 ms 211872 KB Output is correct
53 Correct 96 ms 211804 KB Output is correct

Subtask #3
0 / 67.0

# Verdict Execution time Memory Grader output
1 Correct 98 ms 211724 KB Output is correct
2 Correct 117 ms 211736 KB Output is correct
3 Correct 104 ms 211756 KB Output is correct
4 Correct 99 ms 211688 KB Output is correct
5 Correct 96 ms 211716 KB Output is correct
6 Correct 97 ms 211724 KB Output is correct
7 Correct 96 ms 211804 KB Output is correct
8 Correct 96 ms 211784 KB Output is correct
9 Correct 97 ms 211756 KB Output is correct
10 Correct 106 ms 211656 KB Output is correct
11 Correct 96 ms 211788 KB Output is correct
12 Correct 96 ms 211792 KB Output is correct
13 Correct 97 ms 211720 KB Output is correct
14 Correct 107 ms 211780 KB Output is correct
15 Correct 98 ms 211756 KB Output is correct
16 Correct 99 ms 211740 KB Output is correct
17 Correct 110 ms 211736 KB Output is correct
18 Correct 105 ms 211784 KB Output is correct
19 Correct 112 ms 211788 KB Output is correct
20 Correct 96 ms 211776 KB Output is correct
21 Correct 94 ms 211904 KB Output is correct
22 Correct 97 ms 211788 KB Output is correct
23 Correct 99 ms 211760 KB Output is correct
24 Correct 97 ms 211848 KB Output is correct
25 Correct 97 ms 211656 KB Output is correct
26 Correct 98 ms 211676 KB Output is correct
27 Correct 96 ms 211804 KB Output is correct
28 Correct 106 ms 211788 KB Output is correct
29 Correct 108 ms 211760 KB Output is correct
30 Correct 96 ms 211724 KB Output is correct
31 Correct 106 ms 211736 KB Output is correct
32 Correct 98 ms 211724 KB Output is correct
33 Correct 103 ms 211788 KB Output is correct
34 Correct 100 ms 211788 KB Output is correct
35 Correct 96 ms 211792 KB Output is correct
36 Correct 107 ms 211796 KB Output is correct
37 Correct 104 ms 211856 KB Output is correct
38 Correct 97 ms 211852 KB Output is correct
39 Correct 97 ms 211916 KB Output is correct
40 Correct 95 ms 211788 KB Output is correct
41 Correct 98 ms 211816 KB Output is correct
42 Correct 99 ms 211844 KB Output is correct
43 Correct 95 ms 211840 KB Output is correct
44 Correct 100 ms 211816 KB Output is correct
45 Correct 99 ms 211860 KB Output is correct
46 Correct 97 ms 211744 KB Output is correct
47 Correct 94 ms 211956 KB Output is correct
48 Correct 97 ms 211884 KB Output is correct
49 Correct 99 ms 211788 KB Output is correct
50 Correct 108 ms 211812 KB Output is correct
51 Correct 97 ms 211852 KB Output is correct
52 Correct 102 ms 211872 KB Output is correct
53 Correct 96 ms 211804 KB Output is correct
54 Correct 96 ms 211776 KB Output is correct
55 Correct 102 ms 213136 KB Output is correct
56 Correct 97 ms 211912 KB Output is correct
57 Correct 101 ms 224460 KB Output is correct
58 Correct 117 ms 229140 KB Output is correct
59 Runtime error 143 ms 262144 KB Execution killed with signal 9
60 Halted 0 ms 0 KB -