/in/foo.cc: In function 'int main()':
/in/foo.cc:17:10: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
          for(int i=1;i<=r;i++)
          ^~~
/in/foo.cc:38:7: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
       memcpy(a,b,sizeof(a)); 
       ^~~~~~