View Compilation Error

0_0_21695867_5226.cpp:17:5: error: redefinition of 'int n'
 int n,m;
     ^
0_0_21695867_5226.cpp:15:5: note: 'int n' previously declared here
 int n,m,vis[MAX][MAX];
     ^
0_0_21695867_5226.cpp:17:7: error: redefinition of 'int m'
 int n,m;
       ^
0_0_21695867_5226.cpp:15:7: note: 'int m' previously declared here
 int n,m,vis[MAX][MAX];
       ^