vision.cpp:16:5: error: redefinition of 'int arx [4]'
16 | int arx[4]={1,-1,0,0};
| ^~~
vision.cpp:10:5: note: 'int arx [4]' previously defined here
10 | int arx[4]={1,-1,0,0};
| ^~~
vision.cpp:17:5: error: redefinition of 'int ary [4]'
17 | int ary[4]={0,0,1,-1};
| ^~~
vision.cpp:11:5: note: 'int ary [4]' previously defined here
11 | int ary[4]={0,0,1,-1};
| ^~~
vision.cpp:18:5: error: redefinition of 'int n'
18 | int n,m,k;
| ^
vision.cpp:12:5: note: 'int n' previously declared here
12 | int n,m,k;
| ^
vision.cpp:18:7: error: redefinition of 'int m'
18 | int n,m,k;
| ^
vision.cpp:12:7: note: 'int m' previously declared here
12 | int n,m,k;
| ^
vision.cpp:18:9: error: redefinition of 'int k'
18 | int n,m,k;
| ^
vision.cpp:12:9: note: 'int k' previously declared here
12 | int n,m,k;
| ^
vision.cpp:19:5: error: redefinition of 'int dp [31][31]'
19 | int dp[31][31];
| ^~
vision.cpp:13:5: note: 'int dp [31][31]' previously declared here
13 | int dp[31][31];
| ^~
vision.cpp:20:5: error: redefinition of 'int cur'
20 | int cur;
| ^~~
vision.cpp:14:5: note: 'int cur' previously declared here
14 | int cur;
| ^~~
vision.cpp:21:13: error: redefinition of 'std::vector<int> res'
21 | vector<int> res;
| ^~~
vision.cpp:15:13: note: 'std::vector<int> res' previously declared here
15 | vector<int> res;
| ^~~