/in/foo.cc: In function 'int InterSet(int*, int, int*, int, int*)':
/in/foo.cc:28:21: warning: suggest parentheses around assignment used as truth value [-Wparentheses]
   if(k1=-1 && k2==-1)
                     ^
/in/foo.cc: In function 'int main()':
/in/foo.cc:51:15: warning: 'ne' is used uninitialized in this function [-Wuninitialized]
  Output(e, ne);
               ^