View Compilation Error

0_0_20958507_32575.cpp: In function 'int main()':
0_0_20958507_32575.cpp:39:19: error: redeclaration of 'int t'
     int t,n,i,j,s,t,val;
                   ^
0_0_20958507_32575.cpp:39:9: note: 'int t' previously declared here
     int t,n,i,j,s,t,val;
         ^