| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 958015 |
2024-04-04T16:27:28 Z |
theehann |
Mecho (IOI09_mecho) |
C++17 |
|
136 ms |
31572 KB |
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
#define int ll
#define ft first
#define se second
#define NAME "A"
#define file freopen(NAME".INP","r",stdin); freopen(NAME".OUT","w",stdout);
#define sdf ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
const int MOD = 1e9 + 7;
const int N = 800 + 5, INF = 1e15;
int dx[4] = {0, 0, -1, 1};
int dy[4] = {-1, 1, 0, 0};
char a[N][N];
int dis[N][N];
bool f = false, vis[N][N] = {false};
int n, step, homex, homey, mx, my;
bool dfs(int len, int x, int y){
vis[x][y] = true;
int dist = (len + 1) / step;
for(int i = 0;i < 4;++i){
int u = dx[i] + x;
int v = dy[i] + y;
if(u == homex && v == homey){
return true;
}
if(u < 1 || v < 1 || u > n || v > n) continue;
if((a[u][v] == 'G') && !vis[u][v] && ((len + 1 % step == 0) ? (dist < dis[u][v]) : (dist <= dis[u][v]))){
if(dfs(len + 1, u, v)){
return true;
}
}
}
return false;
}
int32_t main(){
sdf
cin >> n >> step;
queue<pair<int, int>> q;
for(int i = 1;i <= n;++i){
for(int j = 1;j <= n;++j){
cin >> a[i][j];
dis[i][j] = INF;
if(a[i][j] == 'H'){
q.push({i, j});
dis[i][j] = 0;
}
else if(a[i][j] == 'D'){
homex = i; homey = j;
}
else if(a[i][j] == 'M'){
mx = i; my = j;
}
}
}
while(!q.empty()){
const auto [x, y] = q.front(); q.pop();
for(int i = 0;i < 4;++i){
int u = x + dx[i];
int v = y + dy[i];
if(u < 1 || v < 1 || u > n || v > n) continue;
if(dis[u][v] == INF && a[u][v] == 'G'){
dis[u][v] = dis[x][y] + 1;
q.push({u, v});
}
}
}
int l = 1, r = INF;
int ans =0;
while(l <= r){
int mid = (l + r) / 2;
memset(vis, false, sizeof(vis));
if(dfs(mid * step, mx, my)){
l = mid + 1;
ans = mid;
}
else{
r = mid - 1;
}
}
cout << ((ans >= 1) ? ans : -1) ;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
| 2 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 3 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 4 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 5 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 6 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 7 |
Incorrect |
25 ms |
8284 KB |
Output isn't correct |
| 8 |
Correct |
1 ms |
4700 KB |
Output is correct |
| 9 |
Incorrect |
1 ms |
4736 KB |
Output isn't correct |
| 10 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 11 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 12 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 13 |
Incorrect |
1 ms |
4564 KB |
Output isn't correct |
| 14 |
Correct |
4 ms |
4700 KB |
Output is correct |
| 15 |
Incorrect |
1 ms |
4736 KB |
Output isn't correct |
| 16 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 17 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
| 18 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 19 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 20 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 21 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 22 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 23 |
Incorrect |
1 ms |
4696 KB |
Output isn't correct |
| 24 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 25 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 26 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 27 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 28 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 29 |
Incorrect |
1 ms |
4700 KB |
Output isn't correct |
| 30 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 31 |
Incorrect |
3 ms |
4700 KB |
Output isn't correct |
| 32 |
Incorrect |
2 ms |
4700 KB |
Output isn't correct |
| 33 |
Incorrect |
4 ms |
6748 KB |
Output isn't correct |
| 34 |
Incorrect |
4 ms |
6748 KB |
Output isn't correct |
| 35 |
Correct |
17 ms |
11356 KB |
Output is correct |
| 36 |
Incorrect |
4 ms |
6748 KB |
Output isn't correct |
| 37 |
Incorrect |
5 ms |
6748 KB |
Output isn't correct |
| 38 |
Correct |
27 ms |
12800 KB |
Output is correct |
| 39 |
Incorrect |
5 ms |
6748 KB |
Output isn't correct |
| 40 |
Incorrect |
5 ms |
6748 KB |
Output isn't correct |
| 41 |
Correct |
32 ms |
14584 KB |
Output is correct |
| 42 |
Incorrect |
6 ms |
6748 KB |
Output isn't correct |
| 43 |
Incorrect |
7 ms |
6748 KB |
Output isn't correct |
| 44 |
Correct |
46 ms |
16228 KB |
Output is correct |
| 45 |
Incorrect |
6 ms |
7000 KB |
Output isn't correct |
| 46 |
Incorrect |
7 ms |
6748 KB |
Output isn't correct |
| 47 |
Correct |
55 ms |
18444 KB |
Output is correct |
| 48 |
Incorrect |
7 ms |
6748 KB |
Output isn't correct |
| 49 |
Incorrect |
7 ms |
6624 KB |
Output isn't correct |
| 50 |
Correct |
66 ms |
20580 KB |
Output is correct |
| 51 |
Incorrect |
8 ms |
6748 KB |
Output isn't correct |
| 52 |
Incorrect |
8 ms |
6748 KB |
Output isn't correct |
| 53 |
Correct |
102 ms |
23068 KB |
Output is correct |
| 54 |
Incorrect |
9 ms |
6748 KB |
Output isn't correct |
| 55 |
Incorrect |
9 ms |
6836 KB |
Output isn't correct |
| 56 |
Correct |
98 ms |
25684 KB |
Output is correct |
| 57 |
Incorrect |
11 ms |
6744 KB |
Output isn't correct |
| 58 |
Incorrect |
10 ms |
6620 KB |
Output isn't correct |
| 59 |
Correct |
123 ms |
28520 KB |
Output is correct |
| 60 |
Incorrect |
15 ms |
6624 KB |
Output isn't correct |
| 61 |
Incorrect |
11 ms |
7000 KB |
Output isn't correct |
| 62 |
Correct |
136 ms |
31572 KB |
Output is correct |
| 63 |
Incorrect |
59 ms |
6976 KB |
Output isn't correct |
| 64 |
Incorrect |
86 ms |
6972 KB |
Output isn't correct |
| 65 |
Incorrect |
85 ms |
7004 KB |
Output isn't correct |
| 66 |
Incorrect |
63 ms |
6876 KB |
Output isn't correct |
| 67 |
Correct |
62 ms |
6748 KB |
Output is correct |
| 68 |
Incorrect |
34 ms |
7088 KB |
Output isn't correct |
| 69 |
Incorrect |
26 ms |
7004 KB |
Output isn't correct |
| 70 |
Incorrect |
24 ms |
6944 KB |
Output isn't correct |
| 71 |
Incorrect |
24 ms |
6944 KB |
Output isn't correct |
| 72 |
Incorrect |
25 ms |
6736 KB |
Output isn't correct |
| 73 |
Incorrect |
43 ms |
7516 KB |
Output isn't correct |
| 74 |
Incorrect |
45 ms |
14476 KB |
Output isn't correct |
| 75 |
Incorrect |
42 ms |
7516 KB |
Output isn't correct |
| 76 |
Incorrect |
33 ms |
7504 KB |
Output isn't correct |
| 77 |
Incorrect |
57 ms |
7912 KB |
Output isn't correct |
| 78 |
Correct |
26 ms |
7516 KB |
Output is correct |
| 79 |
Incorrect |
38 ms |
13660 KB |
Output isn't correct |
| 80 |
Incorrect |
40 ms |
7884 KB |
Output isn't correct |
| 81 |
Incorrect |
27 ms |
7516 KB |
Output isn't correct |
| 82 |
Incorrect |
39 ms |
7888 KB |
Output isn't correct |
| 83 |
Incorrect |
29 ms |
7404 KB |
Output isn't correct |
| 84 |
Incorrect |
45 ms |
13752 KB |
Output isn't correct |
| 85 |
Incorrect |
38 ms |
7760 KB |
Output isn't correct |
| 86 |
Incorrect |
46 ms |
7552 KB |
Output isn't correct |
| 87 |
Incorrect |
41 ms |
8284 KB |
Output isn't correct |
| 88 |
Incorrect |
39 ms |
7764 KB |
Output isn't correct |
| 89 |
Incorrect |
47 ms |
14940 KB |
Output isn't correct |
| 90 |
Incorrect |
26 ms |
8284 KB |
Output isn't correct |
| 91 |
Incorrect |
37 ms |
9212 KB |
Output isn't correct |
| 92 |
Incorrect |
32 ms |
8016 KB |
Output isn't correct |
