/in/foo.cc: In function 'int main()':
/in/foo.cc:62:9: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
         for(j=0;j<tot;++j) 
         ^~~
/in/foo.cc:64:10: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
          return 0;
          ^~~~~~
/in/foo.cc:38:20: warning: unused variable 't' [-Wunused-variable]
    int i,j,k,ix,iy,t;
                    ^