/in/foo.cc: In function 'int main()':
/in/foo.cc:23:38: warning: 'l2' may be used uninitialized in this function [-Wmaybe-uninitialized]
 long int X,Y,a,b,c,d,e,i,i2,j,k,l,k2,l2,s,p,q;
                                      ^~
/in/foo.cc:23:33: warning: 'l' may be used uninitialized in this function [-Wmaybe-uninitialized]
 long int X,Y,a,b,c,d,e,i,i2,j,k,l,k2,l2,s,p,q;
                                 ^