push_swap:分拣栈，共42个

push_swap 分拣栈，共42个 复制粘贴以进行测试： ARG = ruby -e "puts (0..3).to_a.shuffle.join(' ')" ; ./push_swap $ ARG | ./checker -v $ ARG ARG = ruby -e "puts (0..5).to_a.shuffle.join(' ')" ; ./push_swap $ ARG | ./checker -v $ ARG ARG = ruby -e "puts (0..100).to_a.shuffle.join(' ')" ; ./push_swap $ ARG | ./checker -v $ ARG ARG = ruby -e "puts (0..500).to_a.shuffle.join(' ')" ; ./push_swap $ ARG | ./checker -v $