View Compilation Error

0_0_39027495_18417.cpp: In function 'int main()':
0_0_39027495_18417.cpp:20:46: error: 'st' was not declared in this scope; did you mean 't'?
   20 |                                         if(((st>>j)&1)&&s[i][j]=='A')
      |                                              ^~
      |                                              t
0_0_39027495_18417.cpp:30:35: error: 'ans' was not declared in this scope; did you mean 'abs'?
   30 |                         if(sum>=k)ans++;
      |                                   ^~~
      |                                   abs
0_0_39027495_18417.cpp:32:40: error: 'ans' was not declared in this scope; did you mean 'abs'?
   32 |                 cout<<"Case#"<<x<<":"<<ans<<endl;
      |                                        ^~~
      |                                        abs