| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 946713 |
2024-03-14T23:50:31 Z |
narsuk |
Mecho (IOI09_mecho) |
C++17 |
|
1000 ms |
11300 KB |
#include <bits/stdc++.h>
using namespace std;
//
#define ll long long int
#define endl "\n";
const int maxn = 601;
// array<int,n>
// pq
int n,st;
pair<int,int>mv[4]={ {0,1},{0,-1} , {1,0}, {-1,0} };
char g[maxn][maxn];
char g1[maxn][maxn];
char g2[maxn][maxn];
bool val(int x , int y){
if(x<0 || x>=n || y<0 || y>=n || g[x][y]=='T')return 0;
return 1;
}
int xc,yc;
void bbfs(int x){
int vis[n][n];
queue<pair<pair<int,int>,int>>q;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
if(g1[i][j]=='H'){
q.push({{i,j},0});
}
vis[i][j]=0;
}
}
while(!q.empty()){
pair<int,int>cur;
cur=q.front().first;
int dt = q.front().second;
q.pop();
if(dt>x){
continue;
}
if(vis[cur.first][cur.second])continue;
vis[cur.first][cur.second]=1;
if(g1[cur.first][cur.second]=='D' || g1[cur.first][cur.second]=='T'){
continue;
}
g1[cur.first][cur.second]='H';
// cout<<cur.first<<" "<<cur.second<<endl;
for(auto ele : mv){
int xx = cur.first+ele.first;
int yy = cur.second+ele.second;
if(val(xx,yy)){
q.push({{xx,yy},dt+1});
}
}
}
}
int mbfs(int x){
int vis[n][n];
queue<pair<pair<int,int>,int>>q;
int cou = 0;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
// cout<<g1[i][j];
if(g1[i][j]=='M'){
q.push({{i,j},0});
cou++;
}
vis[i][j]=0;
}
// cout<<endl;
}
// cout<<endl;
if(cou==0){
return 0;
}
while(!q.empty()){
pair<int,int>cur;
cur=q.front().first;
int dt = q.front().second;
q.pop();
if(dt>x){
continue;
}
if(g1[cur.first][cur.second]=='D'){
return 1;
}
if(g1[cur.first][cur.second]!='G' && g1[cur.first][cur.second]!='M'){
continue;
}
if(vis[cur.first][cur.second])continue;
vis[cur.first][cur.second]=1;
g1[cur.first][cur.second]='M';
for(auto ele : mv){
int xx = cur.first+ele.first;
int yy = cur.second+ele.second;
if(val(xx,yy)){
q.push({{xx,yy},dt+1});
}
}
}
return 2;
}
bool check(int x){
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
g1[i][j]=g[i][j];
}
}
bbfs(x);
// cout<<"de"<<endl;
while(1){
// for(int i=0;i<n;i++){
// for(int j=0;j<n;j++){
// cout<<g1[i][j];
// }
// cout<<endl;
// }
// cout<<endl;
// int cans1 = mbfs(st);
// cout<<cans1<<endl;
// if(cans1==1) return 1;
// for(int i=0;i<n;i++){
// for(int j=0;j<n;j++){
// g1[i][j]=g2[i][j];
// }
// }
int cans = mbfs(st);
// cout<<cans<<endl;
if(cans==0)return 0;
if(cans==1) return 1;
bbfs(1);
}
}
void solu(){
cin>>n>>st;
for(int i=0;i<n;i++){
for(int j=0;j<n;j++){
cin>>g[i][j];
g1[i][j]=g[i][j];
if(g[i][j]=='M'){
xc=i;
yc=j;
}
}
}
// cout<<endl;
int l=0;
int r = 1e6;
int ans=0;
while(l<=r){
int mid = l + (r-l)/2;
// cout<<mid<<endl;
if(check(mid)){
ans=max(mid,ans);
l=mid+1;
}else{
r=mid-1;
}
}
// cout<<check(1)<<endl;
cout<<ans<<endl;
}
int main(){
// ios_base::sync_with_stdio(0);
// cin.tie(0);
// int cass;
// cin>>cass;
// for(int i=0;i<cass;i++)
solu();
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
348 KB |
Output is correct |
| 2 |
Correct |
1 ms |
348 KB |
Output is correct |
| 3 |
Correct |
0 ms |
344 KB |
Output is correct |
| 4 |
Correct |
0 ms |
348 KB |
Output is correct |
| 5 |
Correct |
0 ms |
412 KB |
Output is correct |
| 6 |
Correct |
1 ms |
348 KB |
Output is correct |
| 7 |
Runtime error |
17 ms |
1960 KB |
Execution killed with signal 11 |
| 8 |
Incorrect |
1 ms |
348 KB |
Output isn't correct |
| 9 |
Correct |
1 ms |
348 KB |
Output is correct |
| 10 |
Correct |
1 ms |
444 KB |
Output is correct |
| 11 |
Correct |
1 ms |
344 KB |
Output is correct |
| 12 |
Correct |
1 ms |
348 KB |
Output is correct |
| 13 |
Correct |
3 ms |
348 KB |
Output is correct |
| 14 |
Incorrect |
23 ms |
604 KB |
Output isn't correct |
| 15 |
Correct |
1 ms |
348 KB |
Output is correct |
| 16 |
Correct |
1 ms |
348 KB |
Output is correct |
| 17 |
Correct |
1 ms |
348 KB |
Output is correct |
| 18 |
Correct |
1 ms |
348 KB |
Output is correct |
| 19 |
Correct |
1 ms |
348 KB |
Output is correct |
| 20 |
Correct |
1 ms |
348 KB |
Output is correct |
| 21 |
Correct |
3 ms |
348 KB |
Output is correct |
| 22 |
Correct |
1 ms |
348 KB |
Output is correct |
| 23 |
Correct |
3 ms |
348 KB |
Output is correct |
| 24 |
Correct |
2 ms |
348 KB |
Output is correct |
| 25 |
Correct |
10 ms |
348 KB |
Output is correct |
| 26 |
Correct |
5 ms |
348 KB |
Output is correct |
| 27 |
Correct |
7 ms |
604 KB |
Output is correct |
| 28 |
Correct |
4 ms |
604 KB |
Output is correct |
| 29 |
Correct |
8 ms |
604 KB |
Output is correct |
| 30 |
Correct |
5 ms |
604 KB |
Output is correct |
| 31 |
Correct |
17 ms |
604 KB |
Output is correct |
| 32 |
Correct |
6 ms |
604 KB |
Output is correct |
| 33 |
Correct |
860 ms |
3168 KB |
Output is correct |
| 34 |
Correct |
476 ms |
2896 KB |
Output is correct |
| 35 |
Execution timed out |
1059 ms |
4888 KB |
Time limit exceeded |
| 36 |
Execution timed out |
1026 ms |
3708 KB |
Time limit exceeded |
| 37 |
Correct |
660 ms |
3996 KB |
Output is correct |
| 38 |
Execution timed out |
1082 ms |
5796 KB |
Time limit exceeded |
| 39 |
Execution timed out |
1075 ms |
4620 KB |
Time limit exceeded |
| 40 |
Correct |
916 ms |
4484 KB |
Output is correct |
| 41 |
Execution timed out |
1061 ms |
7468 KB |
Time limit exceeded |
| 42 |
Execution timed out |
1039 ms |
5268 KB |
Time limit exceeded |
| 43 |
Execution timed out |
1065 ms |
5256 KB |
Time limit exceeded |
| 44 |
Execution timed out |
1042 ms |
7512 KB |
Time limit exceeded |
| 45 |
Execution timed out |
1040 ms |
6400 KB |
Time limit exceeded |
| 46 |
Execution timed out |
1061 ms |
6292 KB |
Time limit exceeded |
| 47 |
Execution timed out |
1054 ms |
9388 KB |
Time limit exceeded |
| 48 |
Execution timed out |
1038 ms |
7276 KB |
Time limit exceeded |
| 49 |
Execution timed out |
1040 ms |
7204 KB |
Time limit exceeded |
| 50 |
Execution timed out |
1030 ms |
11300 KB |
Time limit exceeded |
| 51 |
Incorrect |
22 ms |
2652 KB |
Output isn't correct |
| 52 |
Incorrect |
37 ms |
2652 KB |
Output isn't correct |
| 53 |
Execution timed out |
1065 ms |
4856 KB |
Time limit exceeded |
| 54 |
Incorrect |
24 ms |
2648 KB |
Output isn't correct |
| 55 |
Incorrect |
32 ms |
2784 KB |
Output isn't correct |
| 56 |
Execution timed out |
1032 ms |
4968 KB |
Time limit exceeded |
| 57 |
Incorrect |
24 ms |
2744 KB |
Output isn't correct |
| 58 |
Incorrect |
34 ms |
2648 KB |
Output isn't correct |
| 59 |
Execution timed out |
1020 ms |
5072 KB |
Time limit exceeded |
| 60 |
Runtime error |
20 ms |
2220 KB |
Execution killed with signal 11 |
| 61 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
| 62 |
Runtime error |
17 ms |
2396 KB |
Execution killed with signal 11 |
| 63 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
| 64 |
Runtime error |
17 ms |
2136 KB |
Execution killed with signal 11 |
| 65 |
Runtime error |
17 ms |
2388 KB |
Execution killed with signal 11 |
| 66 |
Runtime error |
17 ms |
2132 KB |
Execution killed with signal 11 |
| 67 |
Runtime error |
17 ms |
2372 KB |
Execution killed with signal 11 |
| 68 |
Runtime error |
17 ms |
2396 KB |
Execution killed with signal 11 |
| 69 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
| 70 |
Runtime error |
22 ms |
2376 KB |
Execution killed with signal 11 |
| 71 |
Runtime error |
17 ms |
2136 KB |
Execution killed with signal 11 |
| 72 |
Runtime error |
19 ms |
2196 KB |
Execution killed with signal 11 |
| 73 |
Runtime error |
18 ms |
2128 KB |
Execution killed with signal 11 |
| 74 |
Runtime error |
22 ms |
2388 KB |
Execution killed with signal 11 |
| 75 |
Runtime error |
17 ms |
2392 KB |
Execution killed with signal 11 |
| 76 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
| 77 |
Runtime error |
17 ms |
2392 KB |
Execution killed with signal 11 |
| 78 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
| 79 |
Runtime error |
20 ms |
2132 KB |
Execution killed with signal 11 |
| 80 |
Runtime error |
17 ms |
2048 KB |
Execution killed with signal 11 |
| 81 |
Runtime error |
18 ms |
2168 KB |
Execution killed with signal 11 |
| 82 |
Runtime error |
17 ms |
2136 KB |
Execution killed with signal 11 |
| 83 |
Runtime error |
17 ms |
2388 KB |
Execution killed with signal 11 |
| 84 |
Runtime error |
17 ms |
2116 KB |
Execution killed with signal 11 |
| 85 |
Runtime error |
20 ms |
2140 KB |
Execution killed with signal 11 |
| 86 |
Runtime error |
19 ms |
2124 KB |
Execution killed with signal 11 |
| 87 |
Runtime error |
17 ms |
2300 KB |
Execution killed with signal 11 |
| 88 |
Runtime error |
17 ms |
2396 KB |
Execution killed with signal 11 |
| 89 |
Runtime error |
18 ms |
2424 KB |
Execution killed with signal 11 |
| 90 |
Runtime error |
17 ms |
2132 KB |
Execution killed with signal 11 |
| 91 |
Runtime error |
17 ms |
2168 KB |
Execution killed with signal 11 |
| 92 |
Runtime error |
17 ms |
2140 KB |
Execution killed with signal 11 |
