foo.cc: In function 'int main()':
foo.cc:133:17: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
  133 |     if(y < size && isHenOrShu == oldIsHenOrShu
      |        ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
foo.cc:107:7: 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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