题目背景
网上有许多题,就是给定一个序列,要你支持几种操作:A、B、C、D。一看另一道题,又是一个序列要支持几种操作:D、C、B、A。尤其是我们这里的某人,出模拟试题,居然还出了一道这样的,真是没技术含量……
这样我也出一道题,我出这一道的目的是为了让大家以后做这种题目有一个“库”可以依靠,没有什么其他的意思。
这道题目就叫序列终结者吧。
题目描述
给定一个长度为N的序列,每个序列的元素是一个整数(废话)。要支持以下三种操作:
- 将
%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%22278%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%22960%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%221405%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%222164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%222443%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%222721%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%223403%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%223848%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%224607%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%224886%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%225164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%225846%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%226291%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%227051%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(7329%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%BF%99%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8262%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9195%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8C%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10128%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E9%97%B4%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11060%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%86%85%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11993%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%9A%84%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(12926%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%89%80%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13859%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9C%89%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(14792%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%95%B0%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(15725%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8A%A0%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(16658%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%8A%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-56%22%20x%3D%2217591%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-56%22%20x%3D%2218360%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-56%22%20x%3D%2219130%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(19899%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
- 将
%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%22278%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%22960%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%221405%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%222164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%222443%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%222721%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%223403%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%223848%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%224607%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%224886%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%225164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%225846%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%226291%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%227051%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(7329%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%BF%99%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8262%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9195%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8C%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10128%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E9%97%B4%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11060%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%BF%BB%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11993%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%BD%AC%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(12926%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%EF%BC%8C%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13859%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%AF%94%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(14792%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A6%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%20x%3D%2216058%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-32%22%20x%3D%2216559%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-33%22%20x%3D%2217059%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-34%22%20x%3D%2217560%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(18393%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8F%98%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(19326%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%88%90%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-34%22%20x%3D%2220593%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-33%22%20x%3D%2221093%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-32%22%20x%3D%2221594%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-31%22%20x%3D%2222094%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(22928%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
- 求
%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%220%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%22278%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%22960%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%221405%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%222164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%222443%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%222721%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%223403%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%223848%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%224607%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5B%22%20x%3D%224886%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-4C%22%20x%3D%225164%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-2C%22%20x%3D%225846%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMATHI-52%22%20x%3D%226291%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-5D%22%20x%3D%227051%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(7329%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E8%BF%99%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(8262%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(9195%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%8C%BA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(10128%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E9%97%B4%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11060%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AD%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(11993%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E7%9A%84%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(12926%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%9C%80%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(13859%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%A4%A7%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(14792%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E5%80%BC%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(15725%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
最开始所有元素都是%22%20aria-hidden%3D%22true%22%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%22500%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%20%3Cuse%20xlink%3Ahref%3D%22%23E1-MJMAIN-30%22%20x%3D%221001%22%20y%3D%220%22%3E%3C%2Fuse%3E%0A%3Cg%20transform%3D%22translate(1501%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
输入输出格式
输入格式:
第一行两个整数N,M
。M
为操作个数。
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8%A4%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(48781%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E4%B8%AA%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(49714%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E6%95%B0%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3Cg%20transform%3D%22translate(50647%2C0)%22%3E%0A%3Ctext%20font-family%3D%22monospace%22%20stroke%3D%22none%22%20transform%3D%22scale(71.759)%20matrix(1%200%200%20-1%200%200)%22%3E%E3%80%82%3C%2Ftext%3E%0A%3C%2Fg%3E%0A%3C%2Fg%3E%0A%3C%2Fsvg%3E)
输出格式:
对于每个第3种操作,给出正确的回答。
输入输出样例
输入样例#1: 复制
4 4
1 1 3 2
1 2 4 -1
2 1 3
3 2 4
输出样例#1: 复制
2
splay Tree ;
#include
#include
#include
#include
#include
#include
#include
#include
EPFL - Fighting