foo.cc: In function 'int main()':
foo.cc:130:29: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  130 |                 if(y < size && isHenOrShu == oldIsHenOrShu
      |                    ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:107:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
  107 |     scanf("%d", &size); getchar();
      |     ~~~~~^~~~~~~~~~~~~

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