| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 1039430 |
2024-07-30T21:12:04 Z |
ThommyDB |
Mecho (IOI09_mecho) |
C++17 |
|
103 ms |
7028 KB |
#include<bits/stdc++.h>
using namespace std;
const int INF = 1e9;
int n, s;
vector<vector<char>> mp;
pair<int, int> m;
vector<vector<int>> bee_dist;
int bear_dist[805][805];
bool check(int eat){
queue<pair<int, int>> bear;
memset(bear_dist, -1, sizeof(bear_dist));
bear_dist[m.first][m.second] = 0;
bear.push(m);
while(!bear.empty()){
pair<int, int> x = bear.front();
bear.pop();
if(ceil((float)bear_dist[x.first][x.second]/(float)s) +eat >= bee_dist[x.first][x.second])continue;
if(x.first < n-1 && mp[x.first+1][x.second]=='D')return true;
if(x.first > 0 && mp[x.first-1][x.second]=='D')return true;
if(x.second < n-1 && mp[x.first][x.second+1]=='D')return true;
if(x.second > 0 && mp[x.first][x.second-1]=='D')return true;
if(x.first < n-1 && (mp[x.first+1][x.second]!='T' || mp[x.first+1][x.second]!='H') && bear_dist[x.first+1][x.second]==-1){
bear_dist[x.first+1][x.second]=bear_dist[x.first][x.second]+1;
bear.push({x.first+1, x.second});
}
if(x.first > 0 && (mp[x.first-1][x.second]!='T' || mp[x.first-1][x.second]!='H') && bear_dist[x.first-1][x.second]==-1){
bear_dist[x.first-1][x.second]=bear_dist[x.first][x.second]+1;
bear.push({x.first-1, x.second});
}
if(x.second < n-1 && (mp[x.first][x.second+1]!='T' || mp[x.first][x.second+1]!='H') && bear_dist[x.first][x.second+1]==-1){
bear_dist[x.first][x.second+1]=bear_dist[x.first][x.second]+1;
bear.push({x.first, x.second+1});
}
if(x.second > 0 && (mp[x.first][x.second-1]!='T' || mp[x.first][x.second-1]!='H') && bear_dist[x.first][x.second-1]==-1){
bear_dist[x.first][x.second-1]=bear_dist[x.first][x.second]+1;
bear.push({x.first, x.second-1});
}
}
return false;
}
signed main(){
cin >> n >> s;
mp.resize(n, vector<char>(n));
bee_dist.resize(n, vector<int>(n, INF));
queue<pair<int, int>> bees;
for(int i = 0; i < n; i++){
for(int j = 0; j < n; j++){
cin >> mp[i][j];
if(mp[i][j]=='M')m={i, j};
else if(mp[i][j]=='H'){
bees.push({i, j});
bee_dist[i][j]=0;
}
}
}
while(!bees.empty()){
pair<int, int> x = bees.front();
bees.pop();
if(x.first < n-1 && (mp[x.first+1][x.second]!='T' || mp[x.first+1][x.second]!='D' || mp[x.first+1][x.second]!='H') && bee_dist[x.first+1][x.second]==INF){
bee_dist[x.first+1][x.second]=bee_dist[x.first][x.second]+1;
bees.push({x.first+1, x.second});
}
if(x.first > 0 && (mp[x.first-1][x.second]!='T' || mp[x.first-1][x.second]!='D' || mp[x.first-1][x.second]!='H') && bee_dist[x.first-1][x.second]==INF){
bee_dist[x.first-1][x.second]=bee_dist[x.first][x.second]+1;
bees.push({x.first-1, x.second});
}
if(x.second < n-1 && (mp[x.first][x.second+1]!='T' || mp[x.first][x.second+1]!='D' || mp[x.first][x.second+1]!='H') && bee_dist[x.first][x.second+1]==INF){
bee_dist[x.first][x.second+1]=bee_dist[x.first][x.second]+1;
bees.push({x.first, x.second+1});
}
if(x.second > 0 && (mp[x.first][x.second-1]!='T' || mp[x.first][x.second-1]!='D' || mp[x.first][x.second-1]!='H') && bee_dist[x.first][x.second-1]==INF){
bee_dist[x.first][x.second-1]=bee_dist[x.first][x.second]+1;
bees.push({x.first, x.second-1});
}
}
int l = -1, r = n*n;
while(l<r){
int mid = (l+r+1)>>1;
if(check(mid))l=mid;
else r=mid-1;
}
cout << l << "\n";
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 2 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 3 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 4 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 7 |
Incorrect |
60 ms |
6888 KB |
Output isn't correct |
| 8 |
Correct |
1 ms |
2904 KB |
Output is correct |
| 9 |
Incorrect |
1 ms |
2904 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 11 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 12 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 13 |
Correct |
1 ms |
2908 KB |
Output is correct |
| 14 |
Correct |
2 ms |
2908 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 16 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 17 |
Incorrect |
2 ms |
2908 KB |
Output isn't correct |
| 18 |
Incorrect |
1 ms |
2980 KB |
Output isn't correct |
| 19 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 20 |
Incorrect |
1 ms |
2904 KB |
Output isn't correct |
| 21 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
2744 KB |
Output isn't correct |
| 23 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 25 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 28 |
Incorrect |
2 ms |
2908 KB |
Output isn't correct |
| 29 |
Incorrect |
1 ms |
2908 KB |
Output isn't correct |
| 30 |
Incorrect |
2 ms |
2908 KB |
Output isn't correct |
| 31 |
Incorrect |
2 ms |
2908 KB |
Output isn't correct |
| 32 |
Incorrect |
2 ms |
2908 KB |
Output isn't correct |
| 33 |
Incorrect |
6 ms |
3676 KB |
Output isn't correct |
| 34 |
Incorrect |
10 ms |
3488 KB |
Output isn't correct |
| 35 |
Incorrect |
19 ms |
3528 KB |
Output isn't correct |
| 36 |
Incorrect |
8 ms |
3932 KB |
Output isn't correct |
| 37 |
Incorrect |
11 ms |
3928 KB |
Output isn't correct |
| 38 |
Incorrect |
32 ms |
3928 KB |
Output isn't correct |
| 39 |
Incorrect |
11 ms |
4132 KB |
Output isn't correct |
| 40 |
Incorrect |
16 ms |
3968 KB |
Output isn't correct |
| 41 |
Incorrect |
32 ms |
4132 KB |
Output isn't correct |
| 42 |
Incorrect |
12 ms |
4440 KB |
Output isn't correct |
| 43 |
Incorrect |
13 ms |
4284 KB |
Output isn't correct |
| 44 |
Incorrect |
46 ms |
4444 KB |
Output isn't correct |
| 45 |
Incorrect |
15 ms |
4696 KB |
Output isn't correct |
| 46 |
Incorrect |
32 ms |
4700 KB |
Output isn't correct |
| 47 |
Incorrect |
60 ms |
4548 KB |
Output isn't correct |
| 48 |
Incorrect |
16 ms |
4920 KB |
Output isn't correct |
| 49 |
Incorrect |
24 ms |
4952 KB |
Output isn't correct |
| 50 |
Incorrect |
51 ms |
5116 KB |
Output isn't correct |
| 51 |
Incorrect |
19 ms |
5460 KB |
Output isn't correct |
| 52 |
Incorrect |
28 ms |
5476 KB |
Output isn't correct |
| 53 |
Incorrect |
69 ms |
5468 KB |
Output isn't correct |
| 54 |
Incorrect |
21 ms |
5724 KB |
Output isn't correct |
| 55 |
Incorrect |
34 ms |
5684 KB |
Output isn't correct |
| 56 |
Incorrect |
71 ms |
5684 KB |
Output isn't correct |
| 57 |
Incorrect |
22 ms |
6224 KB |
Output isn't correct |
| 58 |
Incorrect |
39 ms |
6236 KB |
Output isn't correct |
| 59 |
Incorrect |
91 ms |
6236 KB |
Output isn't correct |
| 60 |
Incorrect |
26 ms |
6744 KB |
Output isn't correct |
| 61 |
Incorrect |
42 ms |
6748 KB |
Output isn't correct |
| 62 |
Incorrect |
103 ms |
6740 KB |
Output isn't correct |
| 63 |
Incorrect |
24 ms |
6748 KB |
Output isn't correct |
| 64 |
Incorrect |
27 ms |
6548 KB |
Output isn't correct |
| 65 |
Incorrect |
33 ms |
6748 KB |
Output isn't correct |
| 66 |
Incorrect |
24 ms |
6736 KB |
Output isn't correct |
| 67 |
Incorrect |
24 ms |
6744 KB |
Output isn't correct |
| 68 |
Incorrect |
29 ms |
6740 KB |
Output isn't correct |
| 69 |
Incorrect |
32 ms |
6736 KB |
Output isn't correct |
| 70 |
Incorrect |
30 ms |
6720 KB |
Output isn't correct |
| 71 |
Incorrect |
34 ms |
6748 KB |
Output isn't correct |
| 72 |
Incorrect |
31 ms |
6928 KB |
Output isn't correct |
| 73 |
Correct |
32 ms |
6992 KB |
Output is correct |
| 74 |
Incorrect |
46 ms |
6996 KB |
Output isn't correct |
| 75 |
Incorrect |
51 ms |
6996 KB |
Output isn't correct |
| 76 |
Incorrect |
47 ms |
7004 KB |
Output isn't correct |
| 77 |
Incorrect |
46 ms |
6996 KB |
Output isn't correct |
| 78 |
Correct |
56 ms |
6820 KB |
Output is correct |
| 79 |
Incorrect |
43 ms |
6996 KB |
Output isn't correct |
| 80 |
Incorrect |
46 ms |
6992 KB |
Output isn't correct |
| 81 |
Incorrect |
52 ms |
7028 KB |
Output isn't correct |
| 82 |
Incorrect |
43 ms |
7020 KB |
Output isn't correct |
| 83 |
Incorrect |
51 ms |
6748 KB |
Output isn't correct |
| 84 |
Incorrect |
50 ms |
6740 KB |
Output isn't correct |
| 85 |
Incorrect |
54 ms |
6740 KB |
Output isn't correct |
| 86 |
Incorrect |
50 ms |
7004 KB |
Output isn't correct |
| 87 |
Incorrect |
48 ms |
7000 KB |
Output isn't correct |
| 88 |
Incorrect |
53 ms |
6740 KB |
Output isn't correct |
| 89 |
Incorrect |
52 ms |
6736 KB |
Output isn't correct |
| 90 |
Incorrect |
57 ms |
6740 KB |
Output isn't correct |
| 91 |
Incorrect |
57 ms |
6816 KB |
Output isn't correct |
| 92 |
Incorrect |
56 ms |
6740 KB |
Output isn't correct |
