/in/foo.cc: In function 'void PrintPN(int, int)':
/in/foo.cc:38:6: warning: this 'for' clause does not guard... [-Wmisleading-indentation]
      for(i=1;i<=num-1;i++)printf("%d+",a[i]);printf("%d",a[num]);
      ^~~
/in/foo.cc:38:46: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'for'
      for(i=1;i<=num-1;i++)printf("%d+",a[i]);printf("%d",a[num]);
                                              ^~~~~~