View Compilation Error

0_0_24999550_21160.cpp: In function 'int main()':
0_0_24999550_21160.cpp:10:13: error: redeclaration of 'int k'
         int k=0;
             ^
0_0_24999550_21160.cpp:8:17: note: 'int k' previously declared here
         int t,n,k;
                 ^