#include <bits/stdc++.h>
using namespace std;
int main() {
int h, w;
cin >> h >> w;
vector<vector<char> > graph(h, vector<char>(w, 0));
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
cin >> graph[i][j];
}
}
deque<vector<int> > bfs;
bfs.push_back({0, 0});
vector<vector<int> > dist(h, vector<int>(w, -1));
dist[0][0] = 0;
int ans = 0;
while (!bfs.empty()) {
auto current = bfs.front();
bfs.pop_front();
if (graph[current[0]][current[1]] == '.') continue;
ans = max(ans, -dist[current[0]][current[1]]);
// cout << current[0] << current[1] << dist[current[0]][current[1]] << endl;
vector<pair<int, int> > vec = {{0, 1}, {1, 0}};
for (pair<int, int> val: vec) {
if (current[0] + val.first >= 0 &&
current[0] + val.first < h &&
current[1] + val.second < w &&
current[1] + val.second >= 0) {
if (graph[current[0] + val.first][current[1] + val.second] ==
graph[current[0]][current[1]] && dist[current[0] + val.first][current[1] + val.second] == -1) {
dist[current[0] + val.first][current[1] + val.second] = dist[current[0]][current[1]];
bfs.push_front({current[0] + val.first, current[1] + val.second});
} else if (dist[current[0] + val.first][current[1] + val.second] == -1) {
bfs.push_back({current[0] + val.first, current[1] + val.second});
dist[current[0] + val.first][current[1] + val.second] = dist[current[0]][current[1]] - 1;
}
}
}
}
cout << ans + 1 << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
39 ms |
1748 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
300 KB |
Output isn't correct |
| 4 |
Execution timed out |
2064 ms |
1336 KB |
Time limit exceeded |
| 5 |
Incorrect |
7 ms |
728 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 7 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 8 |
Execution timed out |
2077 ms |
324 KB |
Time limit exceeded |
| 9 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 10 |
Incorrect |
6 ms |
692 KB |
Output isn't correct |
| 11 |
Execution timed out |
2073 ms |
600 KB |
Time limit exceeded |
| 12 |
Incorrect |
14 ms |
824 KB |
Output isn't correct |
| 13 |
Incorrect |
7 ms |
820 KB |
Output isn't correct |
| 14 |
Incorrect |
7 ms |
804 KB |
Output isn't correct |
| 15 |
Incorrect |
26 ms |
1832 KB |
Output isn't correct |
| 16 |
Incorrect |
43 ms |
1852 KB |
Output isn't correct |
| 17 |
Incorrect |
25 ms |
1668 KB |
Output isn't correct |
| 18 |
Execution timed out |
2089 ms |
1364 KB |
Time limit exceeded |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
980 KB |
Output isn't correct |
| 2 |
Incorrect |
130 ms |
9636 KB |
Output isn't correct |
| 3 |
Incorrect |
900 ms |
94672 KB |
Output isn't correct |
| 4 |
Incorrect |
269 ms |
22556 KB |
Output isn't correct |
| 5 |
Incorrect |
513 ms |
53460 KB |
Output isn't correct |
| 6 |
Execution timed out |
2091 ms |
95952 KB |
Time limit exceeded |
| 7 |
Incorrect |
4 ms |
852 KB |
Output isn't correct |
| 8 |
Incorrect |
5 ms |
1076 KB |
Output isn't correct |
| 9 |
Incorrect |
7 ms |
852 KB |
Output isn't correct |
| 10 |
Incorrect |
3 ms |
596 KB |
Output isn't correct |
| 11 |
Incorrect |
4 ms |
1108 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
440 KB |
Output isn't correct |
| 13 |
Incorrect |
143 ms |
9644 KB |
Output isn't correct |
| 14 |
Incorrect |
76 ms |
5660 KB |
Output isn't correct |
| 15 |
Incorrect |
57 ms |
6256 KB |
Output isn't correct |
| 16 |
Incorrect |
54 ms |
4112 KB |
Output isn't correct |
| 17 |
Incorrect |
335 ms |
24496 KB |
Output isn't correct |
| 18 |
Incorrect |
220 ms |
23972 KB |
Output isn't correct |
| 19 |
Incorrect |
285 ms |
22552 KB |
Output isn't correct |
| 20 |
Incorrect |
208 ms |
20628 KB |
Output isn't correct |
| 21 |
Incorrect |
519 ms |
55360 KB |
Output isn't correct |
| 22 |
Incorrect |
496 ms |
53452 KB |
Output isn't correct |
| 23 |
Incorrect |
642 ms |
46300 KB |
Output isn't correct |
| 24 |
Incorrect |
521 ms |
53932 KB |
Output isn't correct |
| 25 |
Incorrect |
911 ms |
94664 KB |
Output isn't correct |
| 26 |
Correct |
1536 ms |
72664 KB |
Output is correct |
| 27 |
Execution timed out |
2069 ms |
99928 KB |
Time limit exceeded |
| 28 |
Execution timed out |
2023 ms |
95944 KB |
Time limit exceeded |
| 29 |
Execution timed out |
2085 ms |
98124 KB |
Time limit exceeded |
| 30 |
Execution timed out |
2056 ms |
94092 KB |
Time limit exceeded |
| 31 |
Incorrect |
1752 ms |
61616 KB |
Output isn't correct |
| 32 |
Execution timed out |
2075 ms |
94916 KB |
Time limit exceeded |
