| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 759158 |
2023-06-15T19:58:53 Z |
bane |
Mecho (IOI09_mecho) |
C++17 |
|
155 ms |
6332 KB |
#include <bits/stdc++.h>
using namespace std;
#define endl '\n'
#define ll long long
#define all(x) x.begin(), x.end()
int n, s, times[802][802];
vector<string> v(802);
pair<int, int> st, en;
const int dx[4] = {0, 0, -1, 1};
const int dy[4] = {-1, 1, 0, 0};
inline bool valid(int x, int y) {
return (x >= 0 && x < n && y >= 0 && y < n && v[x][y] != 'T');
}
bool check(int m) {
if (m >= times[st.first][st.second]) return 0;
queue<pair<int, int>> q;
q.push(st);
int vis[n + 2][n + 2];
memset(vis, -1, sizeof(vis));
vis[st.first][st.second] = m;
while(!q.empty()){
int x = q.front().first, y = q.front().second;
q.pop();
int dist = vis[x][y];
for (int d = 0; d < 4; d++) {
int nx = x + dx[d], ny = y + dy[d];
if (valid(nx, ny) && dist + (dist + 1 == s) < times[nx][ny] && vis[nx][ny]==-1) {
vis[nx][ny] = dist + (dist + 1 == s);
q.push({nx, ny});
if (make_pair(nx, ny) == en) return 1;
}
}
}
return 0;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> s;
queue<pair<int, int>> h;
for (int i = 0; i < n; i++) {
cin >> v[i];
for (int j = 0; j < n; j++) {
times[i][j] = (int)1e9;
if (v[i][j] == 'M') st = {i, j};
if (v[i][j] == 'H') {
h.push({i, j});
times[i][j] = 0;
}
if (v[i][j] == 'D') en = {i, j};
}
}
while (h.size() > 0) {
int x = h.front().first, y = h.front().second;
h.pop();
for (int d = 0; d < 4; d++) {
int nx = x + dx[d], ny = y + dy[d];
if (valid(nx, ny) && times[x][y] + 1 < times[nx][ny]) {
times[nx][ny] = times[x][y] + 1;
h.push({nx, ny});
}
}
}
int l = 0, r = n * n, ans = -1;
while(l<=r){
int mid = (l + r) >> 1;
if (check(mid)){
ans = mid;
l = mid + 1;
}else r = mid - 1;
}
cout << ans;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 3 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 5 |
Correct |
0 ms |
340 KB |
Output is correct |
| 6 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 7 |
Incorrect |
79 ms |
6100 KB |
Output isn't correct |
| 8 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 9 |
Correct |
0 ms |
340 KB |
Output is correct |
| 10 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 11 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
468 KB |
Output is correct |
| 14 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 15 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 16 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 17 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 18 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 19 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 20 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
| 21 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 23 |
Incorrect |
0 ms |
468 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
512 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 28 |
Incorrect |
1 ms |
468 KB |
Output isn't correct |
| 29 |
Incorrect |
1 ms |
596 KB |
Output isn't correct |
| 30 |
Incorrect |
1 ms |
596 KB |
Output isn't correct |
| 31 |
Incorrect |
1 ms |
596 KB |
Output isn't correct |
| 32 |
Incorrect |
1 ms |
620 KB |
Output isn't correct |
| 33 |
Incorrect |
2 ms |
2004 KB |
Output isn't correct |
| 34 |
Incorrect |
3 ms |
2004 KB |
Output isn't correct |
| 35 |
Incorrect |
15 ms |
2004 KB |
Output isn't correct |
| 36 |
Incorrect |
3 ms |
2388 KB |
Output isn't correct |
| 37 |
Incorrect |
3 ms |
2388 KB |
Output isn't correct |
| 38 |
Incorrect |
22 ms |
2408 KB |
Output isn't correct |
| 39 |
Incorrect |
4 ms |
2772 KB |
Output isn't correct |
| 40 |
Incorrect |
4 ms |
2772 KB |
Output isn't correct |
| 41 |
Incorrect |
30 ms |
2772 KB |
Output isn't correct |
| 42 |
Incorrect |
4 ms |
3156 KB |
Output isn't correct |
| 43 |
Incorrect |
4 ms |
3084 KB |
Output isn't correct |
| 44 |
Incorrect |
38 ms |
3156 KB |
Output isn't correct |
| 45 |
Incorrect |
5 ms |
3540 KB |
Output isn't correct |
| 46 |
Incorrect |
8 ms |
3668 KB |
Output isn't correct |
| 47 |
Incorrect |
45 ms |
3540 KB |
Output isn't correct |
| 48 |
Incorrect |
6 ms |
3924 KB |
Output isn't correct |
| 49 |
Incorrect |
6 ms |
3924 KB |
Output isn't correct |
| 50 |
Incorrect |
54 ms |
3924 KB |
Output isn't correct |
| 51 |
Incorrect |
7 ms |
4380 KB |
Output isn't correct |
| 52 |
Incorrect |
7 ms |
4384 KB |
Output isn't correct |
| 53 |
Incorrect |
77 ms |
4488 KB |
Output isn't correct |
| 54 |
Incorrect |
9 ms |
4888 KB |
Output isn't correct |
| 55 |
Incorrect |
7 ms |
4948 KB |
Output isn't correct |
| 56 |
Incorrect |
75 ms |
4992 KB |
Output isn't correct |
| 57 |
Incorrect |
9 ms |
5460 KB |
Output isn't correct |
| 58 |
Incorrect |
9 ms |
5460 KB |
Output isn't correct |
| 59 |
Incorrect |
89 ms |
5500 KB |
Output isn't correct |
| 60 |
Incorrect |
10 ms |
5972 KB |
Output isn't correct |
| 61 |
Incorrect |
9 ms |
5972 KB |
Output isn't correct |
| 62 |
Incorrect |
145 ms |
5968 KB |
Output isn't correct |
| 63 |
Incorrect |
98 ms |
6032 KB |
Output isn't correct |
| 64 |
Correct |
155 ms |
6024 KB |
Output is correct |
| 65 |
Incorrect |
113 ms |
6036 KB |
Output isn't correct |
| 66 |
Incorrect |
81 ms |
5972 KB |
Output isn't correct |
| 67 |
Incorrect |
114 ms |
5972 KB |
Output isn't correct |
| 68 |
Incorrect |
33 ms |
5996 KB |
Output isn't correct |
| 69 |
Correct |
33 ms |
5972 KB |
Output is correct |
| 70 |
Incorrect |
36 ms |
6100 KB |
Output isn't correct |
| 71 |
Incorrect |
37 ms |
5988 KB |
Output isn't correct |
| 72 |
Correct |
24 ms |
5996 KB |
Output is correct |
| 73 |
Correct |
33 ms |
6224 KB |
Output is correct |
| 74 |
Incorrect |
54 ms |
6312 KB |
Output isn't correct |
| 75 |
Incorrect |
60 ms |
6252 KB |
Output isn't correct |
| 76 |
Incorrect |
53 ms |
6312 KB |
Output isn't correct |
| 77 |
Incorrect |
62 ms |
6316 KB |
Output isn't correct |
| 78 |
Incorrect |
78 ms |
6276 KB |
Output isn't correct |
| 79 |
Incorrect |
43 ms |
6224 KB |
Output isn't correct |
| 80 |
Incorrect |
49 ms |
6332 KB |
Output isn't correct |
| 81 |
Incorrect |
61 ms |
6280 KB |
Output isn't correct |
| 82 |
Incorrect |
44 ms |
6284 KB |
Output isn't correct |
| 83 |
Incorrect |
83 ms |
6176 KB |
Output isn't correct |
| 84 |
Incorrect |
67 ms |
6264 KB |
Output isn't correct |
| 85 |
Incorrect |
52 ms |
6244 KB |
Output isn't correct |
| 86 |
Incorrect |
66 ms |
6248 KB |
Output isn't correct |
| 87 |
Incorrect |
80 ms |
6228 KB |
Output isn't correct |
| 88 |
Incorrect |
96 ms |
6200 KB |
Output isn't correct |
| 89 |
Incorrect |
91 ms |
6208 KB |
Output isn't correct |
| 90 |
Incorrect |
73 ms |
6108 KB |
Output isn't correct |
| 91 |
Incorrect |
72 ms |
6184 KB |
Output isn't correct |
| 92 |
Incorrect |
67 ms |
6100 KB |
Output isn't correct |
