/in/foo.cc: In function 'int main()':
/in/foo.cc:8:22: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    8 |         if((year%4==0&&year/100!=0||year%400==0)&&(year<=b)){
      |             ~~~~~~~~~^~~~~~~~~~~~~
/in/foo.cc:13:18: error: expected '}' at end of input
   13 |         return 0;
      |                  ^
/in/foo.cc:3:11: note: to match this '{'
    3 | int main(){
      |           ^