| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 912785 |
2024-01-19T22:26:59 Z |
Glauco |
Mecho (IOI09_mecho) |
C++17 |
|
211 ms |
5392 KB |
#include <bits/stdc++.h>
using namespace std;
int main() {
int n, s; cin >> n >> s;
vector<vector<char>> g(n, vector<char>(n));
for(auto &i : g) for(auto &j : i) cin >> j;
queue<array<int, 3>> q;
pair<int, int> start;
for(int i = 0; i < n; i++) for(int j = 0; j < n; j++){
if(g[i][j] == 'M') start = {i, j};
if(g[i][j] == 'H') q.push({i, j, 0});
}
vector<vector<int>> free(n, vector<int>(n, 1e9));
while(!q.empty()){
auto [x, y, d] = q.front(); q.pop();
if(x < 0 || y < 0 || x >= n || y >= n) continue;
if(g[x][y] != 'H' && g[x][y] != 'G') continue;
if(free[x][y] != 1e9) continue;
free[x][y] = d;
q.push({x+1, y, d+1});
q.push({x-1, y, d+1});
q.push({x, y+1, d+1});
q.push({x, y-1, d+1});
}
int l = -1, r = 1e8;
while(l < r-1){
int m = (l+r)/2;
bool ok = 0;
vector<vector<bool>> vis(n, vector<bool>(n));
queue<array<int, 4>> b; b.push({start.first, start.second, m, s});
while(!b.empty()){
auto [x, y, d, st] = b.front(); b.pop();
if(x < 0 || y < 0 || x >= n || y >= n) continue;
if(st == 0){
st = s;
d++;
}
if(vis[x][y]) continue; vis[x][y] = 1;
if(g[x][y] == 'T') continue;
if(free[x][y] < d || (free[x][y] == d && st == s)) continue;
if(g[x][y] == 'D'){
ok = 1;
break;
}
b.push({x+1, y, d, st-1});
b.push({x-1, y, d, st-1});
b.push({x, y+1, d, st-1});
b.push({x, y-1, d, st-1});
}
if(ok) l = m;
else r = m;
}
cout << l;
}
Compilation message
mecho.cpp: In function 'int main()':
mecho.cpp:48:7: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
48 | if(vis[x][y]) continue; vis[x][y] = 1;
| ^~
mecho.cpp:48:31: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
48 | if(vis[x][y]) continue; vis[x][y] = 1;
| ^~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
344 KB |
Output is correct |
| 2 |
Correct |
0 ms |
344 KB |
Output is correct |
| 3 |
Correct |
0 ms |
348 KB |
Output is correct |
| 4 |
Correct |
0 ms |
344 KB |
Output is correct |
| 5 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 7 |
Incorrect |
153 ms |
4260 KB |
Output isn't correct |
| 8 |
Correct |
1 ms |
348 KB |
Output is correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
0 ms |
344 KB |
Output is correct |
| 11 |
Incorrect |
0 ms |
600 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 14 |
Correct |
1 ms |
348 KB |
Output is correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 17 |
Correct |
0 ms |
348 KB |
Output is correct |
| 18 |
Incorrect |
0 ms |
348 KB |
Output isn't correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 21 |
Correct |
1 ms |
348 KB |
Output is correct |
| 22 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 23 |
Correct |
1 ms |
344 KB |
Output is correct |
| 24 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 25 |
Correct |
1 ms |
348 KB |
Output is correct |
| 26 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 27 |
Correct |
1 ms |
348 KB |
Output is correct |
| 28 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 29 |
Correct |
1 ms |
548 KB |
Output is correct |
| 30 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 31 |
Correct |
1 ms |
348 KB |
Output is correct |
| 32 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 33 |
Correct |
8 ms |
860 KB |
Output is correct |
| 34 |
Incorrect |
8 ms |
856 KB |
Output isn't correct |
| 35 |
Incorrect |
34 ms |
1116 KB |
Output isn't correct |
| 36 |
Correct |
9 ms |
1368 KB |
Output is correct |
| 37 |
Incorrect |
10 ms |
1116 KB |
Output isn't correct |
| 38 |
Incorrect |
48 ms |
1116 KB |
Output isn't correct |
| 39 |
Correct |
11 ms |
1372 KB |
Output is correct |
| 40 |
Incorrect |
12 ms |
1372 KB |
Output isn't correct |
| 41 |
Incorrect |
61 ms |
1536 KB |
Output isn't correct |
| 42 |
Correct |
15 ms |
1628 KB |
Output is correct |
| 43 |
Incorrect |
15 ms |
1628 KB |
Output isn't correct |
| 44 |
Incorrect |
77 ms |
1776 KB |
Output isn't correct |
| 45 |
Correct |
17 ms |
1880 KB |
Output is correct |
| 46 |
Incorrect |
17 ms |
1952 KB |
Output isn't correct |
| 47 |
Incorrect |
93 ms |
1972 KB |
Output isn't correct |
| 48 |
Correct |
20 ms |
2136 KB |
Output is correct |
| 49 |
Incorrect |
20 ms |
2140 KB |
Output isn't correct |
| 50 |
Incorrect |
111 ms |
2328 KB |
Output isn't correct |
| 51 |
Correct |
23 ms |
2392 KB |
Output is correct |
| 52 |
Incorrect |
23 ms |
2396 KB |
Output isn't correct |
| 53 |
Incorrect |
128 ms |
2652 KB |
Output isn't correct |
| 54 |
Correct |
30 ms |
2904 KB |
Output is correct |
| 55 |
Incorrect |
29 ms |
2900 KB |
Output isn't correct |
| 56 |
Incorrect |
154 ms |
3152 KB |
Output isn't correct |
| 57 |
Correct |
31 ms |
3160 KB |
Output is correct |
| 58 |
Incorrect |
32 ms |
3300 KB |
Output isn't correct |
| 59 |
Incorrect |
173 ms |
3392 KB |
Output isn't correct |
| 60 |
Correct |
35 ms |
3664 KB |
Output is correct |
| 61 |
Incorrect |
35 ms |
3640 KB |
Output isn't correct |
| 62 |
Incorrect |
211 ms |
3668 KB |
Output isn't correct |
| 63 |
Correct |
153 ms |
3732 KB |
Output is correct |
| 64 |
Correct |
195 ms |
4008 KB |
Output is correct |
| 65 |
Incorrect |
190 ms |
3664 KB |
Output isn't correct |
| 66 |
Correct |
158 ms |
3672 KB |
Output is correct |
| 67 |
Correct |
161 ms |
3664 KB |
Output is correct |
| 68 |
Incorrect |
68 ms |
3788 KB |
Output isn't correct |
| 69 |
Correct |
67 ms |
3676 KB |
Output is correct |
| 70 |
Incorrect |
61 ms |
3672 KB |
Output isn't correct |
| 71 |
Incorrect |
60 ms |
3676 KB |
Output isn't correct |
| 72 |
Incorrect |
56 ms |
3684 KB |
Output isn't correct |
| 73 |
Incorrect |
105 ms |
5252 KB |
Output isn't correct |
| 74 |
Incorrect |
102 ms |
5256 KB |
Output isn't correct |
| 75 |
Incorrect |
113 ms |
5208 KB |
Output isn't correct |
| 76 |
Incorrect |
119 ms |
5392 KB |
Output isn't correct |
| 77 |
Incorrect |
121 ms |
5212 KB |
Output isn't correct |
| 78 |
Correct |
126 ms |
4944 KB |
Output is correct |
| 79 |
Incorrect |
101 ms |
4944 KB |
Output isn't correct |
| 80 |
Incorrect |
111 ms |
5204 KB |
Output isn't correct |
| 81 |
Incorrect |
130 ms |
4944 KB |
Output isn't correct |
| 82 |
Incorrect |
103 ms |
4952 KB |
Output isn't correct |
| 83 |
Incorrect |
126 ms |
4688 KB |
Output isn't correct |
| 84 |
Incorrect |
132 ms |
4832 KB |
Output isn't correct |
| 85 |
Incorrect |
130 ms |
4692 KB |
Output isn't correct |
| 86 |
Incorrect |
132 ms |
4696 KB |
Output isn't correct |
| 87 |
Incorrect |
139 ms |
4952 KB |
Output isn't correct |
| 88 |
Incorrect |
129 ms |
4568 KB |
Output isn't correct |
| 89 |
Incorrect |
139 ms |
4568 KB |
Output isn't correct |
| 90 |
Incorrect |
156 ms |
4596 KB |
Output isn't correct |
| 91 |
Incorrect |
147 ms |
4572 KB |
Output isn't correct |
| 92 |
Incorrect |
146 ms |
4596 KB |
Output isn't correct |
