View Compilation Error

0_0_36674657_23947.cpp:42:5: error: redefinition of 'int n'
 int n,s,t;//
     ^
0_0_36674657_23947.cpp:33:5: note: 'int n' previously declared here
 int n,m,t;
     ^
0_0_36674657_23947.cpp:42:9: error: redefinition of 'int t'
 int n,s,t;//
         ^
0_0_36674657_23947.cpp:33:9: note: 'int t' previously declared here
 int n,m,t;
         ^