foo.cc: In function 'int main()':
foo.cc:24:41: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   24 |                         if(b==2&&(a%4==0&&a%100!=0||a%400==0)&&c>29)
      |                                   ~~~~~~^~~~~~~~~~
foo.cc:5:35: warning: unused variable 'num' [-Wunused-variable]
    5 |         long long a,b,c,d,e,f,x=0,num;
      |                                   ^~~

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