oj.uz

Submission #1031697

# Submission time Handle Problem Language Result Execution time Memory
1031697 2024-07-23T04:33:06 Z ezzzay Mecho (IOI09_mecho) C++14
2 / 100
 1000 ms 14160 KB 
#include<bits/stdc++.h>
using namespace std;
#define ff first
#define ss second
#define pb push_back
#define int long long
const int N=1000;
char arr[N][N];
bool vis[N][N];
int xx[4]={1,-1,0,0};
int yy[4]={0,0,-1,1};
int sx,sy,fx,fy;
char brr[N][N],crr[N][N];
int n,s;
void dfs(int y, int x){
    vis[y][x]=1;
    for(int i=0;i<4;i++){
        if((brr[y+yy[i]][x+xx[i]]=='G' or brr[y+yy[i]][x+xx[i]]=='D') and vis[y+yy[i]][x+xx[i]]==0 ){
            dfs(y+yy[i],x+xx[i]);
        }
    }
}
bool check(int t){
    int h=t;
    while(h--){
        for(int i=1;i<=n;i++){
            for(int j=1;j<=n;j++){
                crr[i][j]=brr[i][j];
                vis[i][j]=0;
            }
        }
        for(int i=1;i<=n;i++){
            for(int j=1;j<=n;j++){
                for(int k=0;k<4;k++){
                    if(crr[i+yy[k]][j+xx[k]]=='G' and crr[i][j]=='H'){
                        brr[i+yy[k]][j+xx[k]]='H';
                    }
                }
            }
        }
    }
    vis[sy][sx]=1;
    dfs(sy,sx);
    return vis[fy][fx];
}
signed main(){
   
    cin>>n>>s;
   
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            cin>>arr[i][j];
            if(arr[i][j]=='M'){
                sy=i;
                sx=j;
            }
            if(arr[i][j]=='D'){
                fy=i;
                fx=j;
            }
        }
    }
    
    int lo=0,hi=1000;
     
    while(hi>=lo){
        int mid=(hi+lo)/2;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=n;j++){
                brr[i][j]=arr[i][j];
            }
        }
        if(check(mid)){
            lo=mid+1;
        }
        else{
            hi=mid-1;
        }
    }
    cout<<hi-2;
}

Compilation message

mecho.cpp: In function 'bool check(long long int)':
mecho.cpp:36:46: warning: writing 1 byte into a region of size 0 [-Wstringop-overflow=]
   36 |                         brr[i+yy[k]][j+xx[k]]='H';
      |                         ~~~~~~~~~~~~~~~~~~~~~^~~~
mecho.cpp:13:6: note: at offset 0 to object 'brr' with size 1000000 declared here
   13 | char brr[N][N],crr[N][N];
      |      ^~~

Subtask #1
2.0 / 100.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 348 KB Output isn't correct
2 Incorrect 1 ms 348 KB Output isn't correct
3 Incorrect 1 ms 348 KB Output isn't correct
4 Correct 0 ms 348 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 Execution timed out 1097 ms 4016 KB Time limit exceeded
8 Incorrect 1 ms 344 KB Output isn't correct
9 Incorrect 2 ms 348 KB Output isn't correct
10 Incorrect 3 ms 348 KB Output isn't correct
11 Correct 1 ms 348 KB Output is correct
12 Incorrect 108 ms 604 KB Output isn't correct
13 Incorrect 10 ms 652 KB Output isn't correct
14 Incorrect 14 ms 696 KB Output isn't correct
15 Incorrect 9 ms 348 KB Output isn't correct
16 Incorrect 3 ms 348 KB Output isn't correct
17 Incorrect 9 ms 348 KB Output isn't correct
18 Incorrect 5 ms 348 KB Output isn't correct
19 Incorrect 17 ms 2556 KB Output isn't correct
20 Incorrect 9 ms 580 KB Output isn't correct
21 Incorrect 56 ms 604 KB Output isn't correct
22 Incorrect 26 ms 604 KB Output isn't correct
23 Incorrect 100 ms 604 KB Output isn't correct
24 Incorrect 61 ms 604 KB Output isn't correct
25 Incorrect 147 ms 600 KB Output isn't correct
26 Incorrect 137 ms 2616 KB Output isn't correct
27 Incorrect 182 ms 2652 KB Output isn't correct
28 Incorrect 164 ms 2396 KB Output isn't correct
29 Incorrect 220 ms 2900 KB Output isn't correct
30 Incorrect 293 ms 2648 KB Output isn't correct
31 Incorrect 238 ms 2768 KB Output isn't correct
32 Incorrect 238 ms 2676 KB Output isn't correct
33 Execution timed out 1064 ms 6776 KB Time limit exceeded
34 Execution timed out 1069 ms 3732 KB Time limit exceeded
35 Correct 604 ms 5508 KB Output is correct
36 Execution timed out 1039 ms 6992 KB Time limit exceeded
37 Execution timed out 1090 ms 4460 KB Time limit exceeded
38 Correct 869 ms 7020 KB Output is correct
39 Execution timed out 1055 ms 8532 KB Time limit exceeded
40 Execution timed out 1026 ms 5468 KB Time limit exceeded
41 Execution timed out 1048 ms 8528 KB Time limit exceeded
42 Execution timed out 1035 ms 10308 KB Time limit exceeded
43 Execution timed out 1045 ms 6472 KB Time limit exceeded
44 Execution timed out 1048 ms 3396 KB Time limit exceeded
45 Execution timed out 1041 ms 12112 KB Time limit exceeded
46 Execution timed out 1063 ms 7508 KB Time limit exceeded
47 Execution timed out 1026 ms 2648 KB Time limit exceeded
48 Execution timed out 1034 ms 14160 KB Time limit exceeded
49 Execution timed out 1066 ms 8512 KB Time limit exceeded
50 Execution timed out 1026 ms 3160 KB Time limit exceeded
51 Execution timed out 1032 ms 3160 KB Time limit exceeded
52 Execution timed out 1057 ms 9784 KB Time limit exceeded
53 Execution timed out 1060 ms 3932 KB Time limit exceeded
54 Execution timed out 1004 ms 4184 KB Time limit exceeded
55 Execution timed out 1067 ms 4188 KB Time limit exceeded
56 Execution timed out 1077 ms 4188 KB Time limit exceeded
57 Execution timed out 1024 ms 4176 KB Time limit exceeded
58 Execution timed out 1080 ms 4184 KB Time limit exceeded
59 Execution timed out 1060 ms 4188 KB Time limit exceeded
60 Execution timed out 1072 ms 4332 KB Time limit exceeded
61 Execution timed out 1076 ms 4444 KB Time limit exceeded
62 Execution timed out 1063 ms 4444 KB Time limit exceeded
63 Execution timed out 1063 ms 3932 KB Time limit exceeded
64 Execution timed out 1060 ms 3932 KB Time limit exceeded
65 Execution timed out 1022 ms 3928 KB Time limit exceeded
66 Execution timed out 1060 ms 3932 KB Time limit exceeded
67 Execution timed out 1066 ms 3932 KB Time limit exceeded
68 Execution timed out 1066 ms 3932 KB Time limit exceeded
69 Execution timed out 1051 ms 3928 KB Time limit exceeded
70 Execution timed out 1029 ms 3928 KB Time limit exceeded
71 Execution timed out 1054 ms 3932 KB Time limit exceeded
72 Execution timed out 1065 ms 3932 KB Time limit exceeded
73 Execution timed out 1056 ms 3932 KB Time limit exceeded
74 Execution timed out 1038 ms 3928 KB Time limit exceeded
75 Execution timed out 1075 ms 3932 KB Time limit exceeded
76 Execution timed out 1077 ms 3932 KB Time limit exceeded
77 Execution timed out 1062 ms 3924 KB Time limit exceeded
78 Execution timed out 1042 ms 3924 KB Time limit exceeded
79 Execution timed out 1033 ms 3932 KB Time limit exceeded
80 Execution timed out 1044 ms 3920 KB Time limit exceeded
81 Execution timed out 1025 ms 3928 KB Time limit exceeded
82 Execution timed out 1065 ms 3932 KB Time limit exceeded
83 Execution timed out 1060 ms 4436 KB Time limit exceeded
84 Execution timed out 1035 ms 4432 KB Time limit exceeded
85 Execution timed out 1045 ms 4436 KB Time limit exceeded
86 Execution timed out 1057 ms 4444 KB Time limit exceeded
87 Execution timed out 1066 ms 4396 KB Time limit exceeded
88 Execution timed out 1026 ms 4432 KB Time limit exceeded
89 Execution timed out 1026 ms 4440 KB Time limit exceeded
90 Execution timed out 1068 ms 4444 KB Time limit exceeded
91 Execution timed out 1046 ms 4440 KB Time limit exceeded
92 Execution timed out 1046 ms 4432 KB Time limit exceeded