/in/foo.cc: In function 'int main()':
/in/foo.cc:31:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
   if(y1%4==0&&y1%100!=0||y1%400==0) sum+=366;
             ^
/in/foo.cc:37:13: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(y%4==0&&y%100!=0||y%400==0) sum+=mon2[i];
             ^
/in/foo.cc:59:14: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
    if(y2%4==0&&y2%100!=0||y2%400==0) sum+=366;
              ^
/in/foo.cc:63:14: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
     if(y%4==0&&y%100!=0||y%400==0) sum+=29-d;
              ^
/in/foo.cc:68:14: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
     if(y%4==0&&y%100!=0||y%400==0) sum+=mon2[i];
              ^