/in/foo.cc: In function 'int main()':
/in/foo.cc:11:6: warning: unused variable 'a' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
      ^
/in/foo.cc:11:8: warning: unused variable 'b' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
        ^
/in/foo.cc:11:14: warning: unused variable 's' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
              ^
/in/foo.cc:11:22: warning: unused variable 'd' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                      ^
/in/foo.cc:11:24: warning: unused variable 'y' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                        ^
/in/foo.cc:11:26: warning: unused variable 'g' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                          ^
/in/foo.cc:11:28: warning: unused variable 'l' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                            ^
/in/foo.cc:11:30: warning: unused variable 'f' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                              ^
/in/foo.cc:11:32: warning: unused variable 'x' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                                ^
/in/foo.cc:11:34: warning: unused variable 'e' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                                  ^
/in/foo.cc:11:36: warning: unused variable 'r' [-Wunused-variable]
  int a,b,n,m,s,i,j,k,d,y,g,l,f,x,e,r,zh;
                                    ^