foo.cc: In function 'bool leap(int)':
foo.cc:5:35: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    5 |         return y%400==0 || y%4==0 && y%100!=0;
      |                            ~~~~~~~^~~~~~~~~~~
foo.cc: In function 'int main()':
foo.cc:19:34: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   19 |                         if (m==2 && d>M[m]+leap(y) || m!=2 && d>M[m])
      |                             ~~~~~^~~~~~~~~~~~~~~~~

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Found 10 testcases.
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