/in/foo.cc: In function 'int main()':
/in/foo.cc:9:2: error: 'sumj' was not declared in this scope
  sumj=365*yj;
  ^~~~
/in/foo.cc:10:17: error: 'n' was not declared in this scope
  for(int i=1;i<=n;i++)
                 ^
/in/foo.cc:12:14: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if(y+i%4==0&&y+i%100!=0||y+i%100!=0)
      ~~~~~~~~^~~~~~~~~~~~