| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1018392 |
2024-07-09T22:20:33 Z |
cryptobunny |
Mecho (IOI09_mecho) |
C++14 |
|
444 ms |
13356 KB |
#include <bits/stdc++.h>
using namespace std;
#define int long long
int n, s, mx, my;
int dx[4] = {0, 0, 1, -1};
int dy[4] = {1, -1, 0, 0};
bool check(int t, vector<vector<char>> grid, vector<vector<int>> btime) {
priority_queue<pair<int, pair<int, int>>> q;
q.push({0, {mx, my}});
vector<vector<bool>> vis(n, vector<bool>(n));
vis[mx][my] = 1;
while (!q.empty()) {
auto tp = q.top();
q.pop();
if (grid[tp.second.first][tp.second.second] == 'D') {
return true;
}
for (int i = 0; i < 4; i++) {
int nx = dx[i] + tp.second.first;
int ny = dy[i] + tp.second.second;
if (nx < 0 || nx >= n || ny < 0 || ny >= n) continue;
if (grid[nx][ny] == 'T' || (btime[nx][ny] - t) * s <= -tp.first) continue;
if (!vis[nx][ny]) {
vis[nx][ny] = 1;
q.push({tp.first - 1, {nx, ny}});
}
}
}
return false;
}
signed main() {
cin >> n >> s;
vector<vector<char>> grid(n, vector<char>(n));
priority_queue<pair<int, pair<int, int>>> q;
vector<vector<int>> btime(n, vector<int>(n, 0x3f3f3f3f));
for (int i = 0; i < n; i++) {
for (int j = 0; j < n; j++) {
cin >> grid[i][j];
if (grid[i][j] == 'H') {
btime[i][j] = 0;
q.push({0, {i, j}});
}
if (grid[i][j] == 'M') mx = i, my = j;
}
}
while (!q.empty()) {
auto tp = q.top();
q.pop();
if (btime[tp.second.first][tp.second.second] != -tp.first) continue;
for (int i = 0; i < 4; i++) {
int nx = dx[i] + tp.second.first;
int ny = dy[i] + tp.second.second;
if (nx < 0 || nx >= n || ny < 0 || ny >= n) continue;
if (grid[nx][ny] != 'G' && grid[nx][ny] != 'M') continue;
if (-tp.first + 1 < btime[nx][ny]) {
btime[nx][ny] = 1 - tp.first;
q.push({-1 + tp.first, {nx, ny}});
}
}
}
int l = 0;
int r = 1e9 + 1;
while (l != r) {
int mid = (l + r + 1)/2;
if (check(mid, grid, btime)) {
l = mid;
}
else {
r = mid - 1;
}
}
cout << l << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 2 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 5 |
Correct |
0 ms |
348 KB |
Output is correct |
| 6 |
Correct |
0 ms |
348 KB |
Output is correct |
| 7 |
Correct |
350 ms |
12876 KB |
Output is correct |
| 8 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
344 KB |
Output is correct |
| 10 |
Correct |
0 ms |
348 KB |
Output is correct |
| 11 |
Correct |
0 ms |
348 KB |
Output is correct |
| 12 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
436 KB |
Output isn't correct |
| 14 |
Incorrect |
1 ms |
528 KB |
Output isn't correct |
| 15 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 16 |
Correct |
0 ms |
348 KB |
Output is correct |
| 17 |
Incorrect |
1 ms |
432 KB |
Output isn't correct |
| 18 |
Correct |
0 ms |
348 KB |
Output is correct |
| 19 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 20 |
Correct |
1 ms |
436 KB |
Output is correct |
| 21 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 22 |
Correct |
1 ms |
348 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 24 |
Correct |
1 ms |
348 KB |
Output is correct |
| 25 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 26 |
Correct |
1 ms |
348 KB |
Output is correct |
| 27 |
Incorrect |
1 ms |
484 KB |
Output isn't correct |
| 28 |
Correct |
1 ms |
348 KB |
Output is correct |
| 29 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 30 |
Correct |
1 ms |
348 KB |
Output is correct |
| 31 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 32 |
Correct |
1 ms |
348 KB |
Output is correct |
| 33 |
Incorrect |
13 ms |
2576 KB |
Output isn't correct |
| 34 |
Correct |
10 ms |
2648 KB |
Output is correct |
| 35 |
Correct |
61 ms |
2808 KB |
Output is correct |
| 36 |
Incorrect |
11 ms |
3520 KB |
Output isn't correct |
| 37 |
Correct |
12 ms |
3420 KB |
Output is correct |
| 38 |
Correct |
90 ms |
3620 KB |
Output is correct |
| 39 |
Incorrect |
14 ms |
4188 KB |
Output isn't correct |
| 40 |
Correct |
15 ms |
4188 KB |
Output is correct |
| 41 |
Correct |
102 ms |
4336 KB |
Output is correct |
| 42 |
Incorrect |
18 ms |
5208 KB |
Output isn't correct |
| 43 |
Correct |
20 ms |
5212 KB |
Output is correct |
| 44 |
Correct |
160 ms |
5292 KB |
Output is correct |
| 45 |
Incorrect |
20 ms |
5976 KB |
Output isn't correct |
| 46 |
Correct |
23 ms |
5980 KB |
Output is correct |
| 47 |
Correct |
173 ms |
6052 KB |
Output is correct |
| 48 |
Incorrect |
22 ms |
7260 KB |
Output isn't correct |
| 49 |
Correct |
25 ms |
7256 KB |
Output is correct |
| 50 |
Correct |
210 ms |
7252 KB |
Output is correct |
| 51 |
Incorrect |
25 ms |
8280 KB |
Output isn't correct |
| 52 |
Correct |
27 ms |
8276 KB |
Output is correct |
| 53 |
Correct |
290 ms |
8276 KB |
Output is correct |
| 54 |
Incorrect |
32 ms |
9552 KB |
Output isn't correct |
| 55 |
Correct |
36 ms |
9628 KB |
Output is correct |
| 56 |
Correct |
357 ms |
9856 KB |
Output is correct |
| 57 |
Incorrect |
36 ms |
11092 KB |
Output isn't correct |
| 58 |
Correct |
39 ms |
11100 KB |
Output is correct |
| 59 |
Correct |
349 ms |
11296 KB |
Output is correct |
| 60 |
Incorrect |
45 ms |
12632 KB |
Output isn't correct |
| 61 |
Correct |
43 ms |
12376 KB |
Output is correct |
| 62 |
Correct |
428 ms |
12692 KB |
Output is correct |
| 63 |
Correct |
249 ms |
12744 KB |
Output is correct |
| 64 |
Correct |
444 ms |
12672 KB |
Output is correct |
| 65 |
Correct |
436 ms |
12744 KB |
Output is correct |
| 66 |
Incorrect |
313 ms |
12748 KB |
Output isn't correct |
| 67 |
Incorrect |
272 ms |
12704 KB |
Output isn't correct |
| 68 |
Correct |
158 ms |
12788 KB |
Output is correct |
| 69 |
Correct |
160 ms |
12784 KB |
Output is correct |
| 70 |
Correct |
145 ms |
12784 KB |
Output is correct |
| 71 |
Correct |
129 ms |
12868 KB |
Output is correct |
| 72 |
Incorrect |
133 ms |
12760 KB |
Output isn't correct |
| 73 |
Incorrect |
162 ms |
13212 KB |
Output isn't correct |
| 74 |
Correct |
230 ms |
13308 KB |
Output is correct |
| 75 |
Correct |
265 ms |
13256 KB |
Output is correct |
| 76 |
Correct |
236 ms |
13264 KB |
Output is correct |
| 77 |
Correct |
234 ms |
13256 KB |
Output is correct |
| 78 |
Incorrect |
272 ms |
13344 KB |
Output isn't correct |
| 79 |
Correct |
208 ms |
13272 KB |
Output is correct |
| 80 |
Correct |
245 ms |
13356 KB |
Output is correct |
| 81 |
Correct |
244 ms |
13280 KB |
Output is correct |
| 82 |
Correct |
216 ms |
13268 KB |
Output is correct |
| 83 |
Correct |
278 ms |
13172 KB |
Output is correct |
| 84 |
Correct |
301 ms |
13228 KB |
Output is correct |
| 85 |
Correct |
262 ms |
13164 KB |
Output is correct |
| 86 |
Correct |
292 ms |
13140 KB |
Output is correct |
| 87 |
Correct |
276 ms |
13156 KB |
Output is correct |
| 88 |
Correct |
285 ms |
13048 KB |
Output is correct |
| 89 |
Correct |
298 ms |
13104 KB |
Output is correct |
| 90 |
Correct |
337 ms |
13120 KB |
Output is correct |
| 91 |
Correct |
314 ms |
13092 KB |
Output is correct |
| 92 |
Correct |
323 ms |
13036 KB |
Output is correct |
