/in/foo.cc: In function 'int main()':
/in/foo.cc:43:22: warning: array subscript has type 'char' [-Wchar-subscripts]
   cout << secret[c[i]] ;
                      ^
/in/foo.cc:42:7: warning: unused variable 't' [-Wunused-variable]
   int t=c[i];
       ^