/in/foo.cc: In function 'int main()':
/in/foo.cc:31:2: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
  for(int i=1;i<=ans[0];i++) printf("%c=%d ",ans[i]+'A',a[ans[i]]-1);printf("\n");
  ^~~
/in/foo.cc:31:69: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
  for(int i=1;i<=ans[0];i++) printf("%c=%d ",ans[i]+'A',a[ans[i]]-1);printf("\n");
                                                                     ^~~~~~