/in/foo.cc: In function 'int main()':
/in/foo.cc:8:6: warning: unused variable 'gj' [-Wunused-variable]
    8 |  int gj,mj,xj;//公鸡母鸡小鸡
      |      ^~
/in/foo.cc:8:9: warning: unused variable 'mj' [-Wunused-variable]
    8 |  int gj,mj,xj;//公鸡母鸡小鸡
      |         ^~
/in/foo.cc:10:6: warning: unused variable 's' [-Wunused-variable]
   10 |  int s=100;//数量
      |      ^