View Compilation Error

0_0_17317187_13475.cpp:7:15: error: redefinition of 'int n'
 int n,t,i,j,k,n,m,s,t;
               ^
0_0_17317187_13475.cpp:7:5: note: 'int n' previously declared here
 int n,t,i,j,k,n,m,s,t;
     ^
0_0_17317187_13475.cpp:7:21: error: redefinition of 'int t'
 int n,t,i,j,k,n,m,s,t;
                     ^
0_0_17317187_13475.cpp:7:7: note: 'int t' previously declared here
 int n,t,i,j,k,n,m,s,t;
       ^