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View Compilation Error

0_0_25214894_4611.cpp:110:11: error: redefinition of 'const int maxn'
 const int maxn=101;
           ^
0_0_25214894_4611.cpp:6:11: note: 'const int maxn' previously defined here
 const int maxn=101;
           ^
0_0_25214894_4611.cpp:112:8: error: redefinition of 'struct EXIT'
 struct EXIT
        ^
0_0_25214894_4611.cpp:8:8: error: previous definition of 'struct EXIT'
 struct EXIT
        ^
0_0_25214894_4611.cpp:116:8: error: redefinition of 'struct node'
 struct node
        ^
0_0_25214894_4611.cpp:12:8: error: previous definition of 'struct node'
 struct node
        ^
0_0_25214894_4611.cpp:120:15: error: redefinition of 'EXIT exit [101]'
 EXIT exit[maxn];
               ^
0_0_25214894_4611.cpp:16:6: note: 'EXIT exit [101]' previously declared here
 EXIT exit[maxn];
      ^
0_0_25214894_4611.cpp:121:5: error: redefinition of 'int n'
 int n,m,cnt;
     ^
0_0_25214894_4611.cpp:17:5: note: 'int n' previously declared here
 int n,m,cnt;
     ^
0_0_25214894_4611.cpp:121:7: error: redefinition of 'int m'
 int n,m,cnt;
       ^
0_0_25214894_4611.cpp:17:7: note: 'int m' previously declared here
 int n,m,cnt;
       ^
0_0_25214894_4611.cpp:121:9: error: redefinition of 'int cnt'
 int n,m,cnt;
         ^
0_0_25214894_4611.cpp:17:9: note: 'int cnt' previously declared here
 int n,m,cnt;
         ^
0_0_25214894_4611.cpp:122:5: error: redefinition of 'int sx'
 int sx,sy;
     ^
0_0_25214894_4611.cpp:18:5: note: 'int sx' previously declared here
 int sx,sy;
     ^
0_0_25214894_4611.cpp:122:8: error: redefinition of 'int sy'
 int sx,sy;
        ^
0_0_25214894_4611.cpp:18:8: note: 'int sy' previously declared here
 int sx,sy;
        ^
0_0_25214894_4611.cpp:123:27: error: redefinition of 'int visit [101][101][16]'
 int visit[maxn][maxn][1<<4];
                           ^
0_0_25214894_4611.cpp:19:5: note: 'int visit [101][101][16]' previously declared here
 int visit[maxn][maxn][1<<4];
     ^
0_0_25214894_4611.cpp:124:18: error: redefinition of 'char g [101][101]'
 char g[maxn][maxn];
                  ^
0_0_25214894_4611.cpp:20:6: note: 'char g [101][101]' previously declared here
 char g[maxn][maxn];
      ^
0_0_25214894_4611.cpp:125:12: error: redefinition of 'int mt [4][2]'
 int mt[4][2]={{0,1},{0,-1},{1,0},{-1,0}};
            ^
0_0_25214894_4611.cpp:21:5: note: 'int mt [4][2]' previously defined here
 int mt[4][2]={{0,1},{0,-1},{1,0},{-1,0}};
     ^
0_0_25214894_4611.cpp: In function 'bool check(int, int)':
0_0_25214894_4611.cpp:127:6: error: redefinition of 'bool check(int, int)'
 bool check(int a,int b)
      ^
0_0_25214894_4611.cpp:23:6: note: 'bool check(int, int)' previously defined here
 bool check(int a,int b)
      ^
0_0_25214894_4611.cpp: In function 'int bfs()':
0_0_25214894_4611.cpp:133:5: error: redefinition of 'int bfs()'
 int bfs()
     ^
0_0_25214894_4611.cpp:29:5: note: 'int bfs()' previously defined here
 int bfs()
     ^
0_0_25214894_4611.cpp: In function 'int main()':
0_0_25214894_4611.cpp:180:5: error: redefinition of 'int main()'
 int main()
     ^
0_0_25214894_4611.cpp:76:5: note: 'int main()' previously defined here
 int main()
     ^


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