题目地址 https://pta.patest.cn/pta/test/16/exam/4/question/666 5-4 List Leaves   (25分) Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. Input Specification: Each input file contains one test case. For eac…

PTA甲级1094 The Largest Generation (25分) A family hierarchy is usually presented by a pedigree tree where all the nodes on the same level belong to the same generation. Your task is to find the generation with the largest population. Input Specificatio…

题目链接:https://pintia.cn/problem-sets/994805046380707840/problems/994805069361299456 L2-006 树的遍历 (25 分)   给定一棵二叉树的后序遍历和中序遍历,请你输出其层序遍历的序列.这里假设键值都是互不相等的正整数. 输入格式: 输入第一行给出一个正整数N(≤30),是二叉树中结点的个数.第二行给出其后序遍历序列.第三行给出其中序遍历序列.数字间以空格分隔. 输出格式: 在一行中输出该树的层序遍历的序列.数字…

题目地址 https://pta.patest.cn/pta/test/16/exam/4/question/668 5-6 Root of AVL Tree   (25分) An AVL tree is a self-balancing binary search tree. In an AVL tree, the heights of the two child subtrees of any node differ by at most one; if at any time they d…

题目地址 https://pta.patest.cn/pta/test/16/exam/4/question/677 5-15 PAT Judge   (25分) The ranklist of PAT is generated from the status list, which shows the scores of the submissions. This time you are supposed to generate the ranklist for PAT. Input Spe…

题目地址 https://pta.patest.cn/pta/test/15/exam/4/question/713 5-5 堆中的路径   (25分) 将一系列给定数字插入一个初始为空的小顶堆H[].随后对任意给定的下标i,打印从H[i]到根结点的路径. 输入格式: 每组测试第1行包含2个正整数NN和MM(\le 1000≤1000),分别是插入元素的个数.以及需要打印的路径条数.下一行给出区间[-10000, 10000]内的NN个要被插入一个初始为空的小顶堆的整数.最后一行给出MM个下标.…

Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. Input Specification: Each input file contains one test case. For each case, the first line gives a positive integer N(≤10) which is the total number of…

哈利·波特要考试了,他需要你的帮助.这门课学的是用魔咒将一种动物变成另一种动物的本事.例如将猫变成老鼠的魔咒是haha,将老鼠变成鱼的魔咒是hehe等等.反方向变化的魔咒就是简单地将原来的魔咒倒过来念,例如ahah可以将老鼠变成猫.另外,如果想把猫变成鱼,可以通过念一个直接魔咒lalala,也可以将猫变老鼠.老鼠变鱼的魔咒连起来念:hahahehe. 现在哈利·波特的手里有一本教材,里面列出了所有的变形魔咒和能变的动物.老师允许他自己带一只动物去考场,要考察他把这只动物变成任意一只指定动物的本事…

链接:https://pintia.cn/problem-sets/994805046380707840/problems/994805069361299456 题目: 给定一棵二叉树的后序遍历和中序遍历,请你输出其层序遍历的序列.这里假设键值都是互不相等的正整数. 输入格式: 输入第一行给出一个正整数N(≤),是二叉树中结点的个数.第二行给出其后序遍历序列.第三行给出其中序遍历序列.数字间以空格分隔. 输出格式: 在一行中输出该树的层序遍历的序列.数字间以1个空格分隔,行首尾不得有多余空格.…

Given a tree, you are supposed to list all the leaves in the order of top down, and left to right. Input Specification: Each input file contains one test case. For each case, the first line gives a positive integer N (≤) which is the total number of…