#include <bits/stdc++.h>
using namespace std;
#define f first
#define s second
int n, k;
bool ok = 0;
pair<int,int> sta, en;
vector<string> G;
vector<vector<int>> V;
vector<vector<int>> vis;
queue<pair<pair<int,int>,int>> Q;
auto cmp = [](pair<pair<int,int>,pair<int,int>> l, pair<pair<int,int>,pair<int,int>> r){
if(l.f.f != r.f.f)return l.f.f < r.f.f;
return l.f.s > r.f.s;
};
priority_queue<pair<pair<int,int>,pair<int,int>>, vector<pair<pair<int,int>,pair<int,int>>>, decltype(cmp)> PQ(cmp);
void fin(pair<pair<int,int>,pair<int,int>> now){
if(vis[now.s.f][now.s.s] < now.f.s)return;
vis[now.s.f][now.s.s] = now.f.s;
if(now.s == en){cout << now.f.f << "\n";ok = 1;return;}
if(now.s.f != n-1){
if(V[now.s.f+1][now.s.s] > now.f.s/k-1){
PQ.push({{min(V[now.s.f+1][now.s.s]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f+1,now.s.s}});
}
}
if(now.s.s != n-1){
if(V[now.s.f][now.s.s+1] > now.f.s/k-1){
PQ.push({{min(V[now.s.f][now.s.s+1]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f,now.s.s+1}});
}
}
if(now.s.f != 0){
if(V[now.s.f-1][now.s.s] > now.f.s/k-1){
PQ.push({{min(V[now.s.f-1][now.s.s]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f-1,now.s.s}});
}
}
if(now.s.s != 0){
if(V[now.s.f][now.s.s-1] > now.f.s/k-1){
PQ.push({{min(V[now.s.f][now.s.s-1]-now.f.s/k-1,now.f.f), now.f.s+1},{now.s.f,now.s.s-1}});
}
}
}
void search(pair<pair<int,int>,int> now){
if(now.f.f < 0 || now.f.s < 0 || now.f.f >= n || now.f.s >= n)return;
if(V[now.f.f][now.f.s] != -1)return;
V[now.f.f][now.f.s] = now.s;
Q.push({{now.f.f-1,now.f.s},now.s+1});
Q.push({{now.f.f+1,now.f.s},now.s+1});
Q.push({{now.f.f,now.f.s-1},now.s+1});
Q.push({{now.f.f,now.f.s+1},now.s+1});
}
int main(){
cin >> n >> k;
G.resize(n);
V.resize(n, vector<int> (n,-1));
vis.resize(n, vector<int> (n, 1000000));
for(auto &x : G)cin >> x;
for(int i = 0; i < n; ++i){
for(int j = 0; j < n; ++j){
if(G[i][j] == 'T')V[i][j] = -2;
if(G[i][j] == 'M')sta = {i,j};
if(G[i][j] == 'D'){en = {i,j};V[i][j] = 1000000;}
if(G[i][j] == 'H')Q.push({{i,j},0});
}
}
while(!Q.empty()){
auto x = Q.front();
Q.pop();
search(x);
}
//for(int i = 0; i < n; ++i){
//for(int j = 0; j < n; ++j){
//cout << V[i][j] << " ";
//}
//cout << "\n";
//}
PQ.push({{V[sta.f][sta.s]-1, 0},sta});
while(!PQ.empty()){
auto x = PQ.top();
PQ.pop();
//cout << x.f.f << " " << x.f.s << " " << x.s.f << " " << x.s.s << "\n";
fin(x);
if(ok)break;
}
if(!ok)cout << -1 << "\n";
}
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Incorrect |
1 ms |
512 KB |
Output isn't correct |
| 2 |
Incorrect |
0 ms |
384 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 4 |
Incorrect |
0 ms |
256 KB |
Output isn't correct |
| 5 |
Correct |
1 ms |
256 KB |
Output is correct |
| 6 |
Correct |
0 ms |
256 KB |
Output is correct |
| 7 |
Runtime error |
490 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 8 |
Incorrect |
1 ms |
256 KB |
Output isn't correct |
| 9 |
Correct |
1 ms |
256 KB |
Output is correct |
| 10 |
Correct |
0 ms |
256 KB |
Output is correct |
| 11 |
Correct |
0 ms |
256 KB |
Output is correct |
| 12 |
Correct |
1 ms |
384 KB |
Output is correct |
| 13 |
Runtime error |
641 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 14 |
Runtime error |
649 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 15 |
Incorrect |
0 ms |
256 KB |
Output isn't correct |
| 16 |
Correct |
0 ms |
256 KB |
Output is correct |
| 17 |
Incorrect |
0 ms |
384 KB |
Output isn't correct |
| 18 |
Correct |
0 ms |
256 KB |
Output is correct |
| 19 |
Incorrect |
0 ms |
384 KB |
Output isn't correct |
| 20 |
Correct |
1 ms |
384 KB |
Output is correct |
| 21 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 22 |
Correct |
1 ms |
384 KB |
Output is correct |
| 23 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 24 |
Correct |
1 ms |
384 KB |
Output is correct |
| 25 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Incorrect |
1 ms |
384 KB |
Output isn't correct |
| 32 |
Correct |
1 ms |
384 KB |
Output is correct |
| 33 |
Incorrect |
12 ms |
1536 KB |
Output isn't correct |
| 34 |
Correct |
13 ms |
1408 KB |
Output is correct |
| 35 |
Runtime error |
423 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 36 |
Incorrect |
15 ms |
1792 KB |
Output isn't correct |
| 37 |
Correct |
16 ms |
1792 KB |
Output is correct |
| 38 |
Runtime error |
422 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 39 |
Incorrect |
20 ms |
2304 KB |
Output isn't correct |
| 40 |
Correct |
20 ms |
2176 KB |
Output is correct |
| 41 |
Runtime error |
435 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 42 |
Incorrect |
24 ms |
2816 KB |
Output isn't correct |
| 43 |
Correct |
25 ms |
2816 KB |
Output is correct |
| 44 |
Runtime error |
443 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 45 |
Incorrect |
30 ms |
3320 KB |
Output isn't correct |
| 46 |
Correct |
30 ms |
3200 KB |
Output is correct |
| 47 |
Runtime error |
450 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 48 |
Incorrect |
34 ms |
3840 KB |
Output isn't correct |
| 49 |
Correct |
35 ms |
3716 KB |
Output is correct |
| 50 |
Runtime error |
453 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 51 |
Incorrect |
40 ms |
4344 KB |
Output isn't correct |
| 52 |
Correct |
42 ms |
4352 KB |
Output is correct |
| 53 |
Runtime error |
462 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 54 |
Incorrect |
47 ms |
4864 KB |
Output isn't correct |
| 55 |
Correct |
47 ms |
4864 KB |
Output is correct |
| 56 |
Runtime error |
473 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 57 |
Incorrect |
53 ms |
5504 KB |
Output isn't correct |
| 58 |
Correct |
58 ms |
5752 KB |
Output is correct |
| 59 |
Runtime error |
498 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 60 |
Incorrect |
61 ms |
6136 KB |
Output isn't correct |
| 61 |
Correct |
63 ms |
6136 KB |
Output is correct |
| 62 |
Runtime error |
490 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 63 |
Correct |
128 ms |
6136 KB |
Output is correct |
| 64 |
Correct |
133 ms |
6240 KB |
Output is correct |
| 65 |
Correct |
135 ms |
6272 KB |
Output is correct |
| 66 |
Incorrect |
122 ms |
6140 KB |
Output isn't correct |
| 67 |
Correct |
108 ms |
6136 KB |
Output is correct |
| 68 |
Correct |
94 ms |
6392 KB |
Output is correct |
| 69 |
Correct |
98 ms |
6392 KB |
Output is correct |
| 70 |
Correct |
90 ms |
6392 KB |
Output is correct |
| 71 |
Correct |
89 ms |
6396 KB |
Output is correct |
| 72 |
Correct |
79 ms |
6392 KB |
Output is correct |
| 73 |
Runtime error |
480 ms |
65544 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 74 |
Runtime error |
705 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 75 |
Runtime error |
595 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 76 |
Runtime error |
609 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 77 |
Runtime error |
811 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 78 |
Runtime error |
696 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 79 |
Runtime error |
699 ms |
65536 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 80 |
Runtime error |
700 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 81 |
Runtime error |
706 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 82 |
Runtime error |
695 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 83 |
Runtime error |
740 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 84 |
Runtime error |
693 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 85 |
Runtime error |
732 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 86 |
Runtime error |
779 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 87 |
Runtime error |
675 ms |
65536 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 88 |
Runtime error |
492 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 89 |
Runtime error |
717 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 90 |
Runtime error |
505 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 91 |
Runtime error |
504 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
| 92 |
Runtime error |
501 ms |
65540 KB |
Execution killed with signal 9 (could be triggered by violating memory limits) |
