View Compilation Error

0_0_32656655_17414.cpp: In function 'int main()':
0_0_32656655_17414.cpp:11:9: error: 't' was not declared in this scope
     for(t=1;cas<=T;cas++)
         ^
0_0_32656655_17414.cpp:11:13: error: 'cas' was not declared in this scope
     for(t=1;cas<=T;cas++)
             ^
0_0_32656655_17414.cpp:19:13: error: 'i' was not declared in this scope
         for(i=1;i<=n;i++)
             ^
0_0_32656655_17414.cpp:21:17: error: 'j' was not declared in this scope
             for(j=i;j<=n;j++)
                 ^
0_0_32656655_17414.cpp:26:13: error: 'i' was not declared in this scope
         for(i=0;i<=n;i++)
             ^
0_0_32656655_17414.cpp:31:13: error: 'len' was not declared in this scope
         for(len=1;len<=n;len++)
             ^
0_0_32656655_17414.cpp:33:17: error: 'i' was not declared in this scope
             for(i=1;i<=n-len+1;i++)
                 ^
0_0_32656655_17414.cpp:35:17: error: 'j' was not declared in this scope
                 j=i+len-1;
                 ^
0_0_32656655_17414.cpp:36:21: error: 'k' was not declared in this scope
                 for(k=i;k<=j;k++)
                     ^