The Unique MST Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 27141 Accepted: 9712 Description Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undire…
1005 Programming Pattern (35 分) Programmers often have a preference among program constructs. For example, some may prefer if(0==a), while others may prefer if(!a). Analyzing such patterns can help to narrow down a programmer's identity, which is use…
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…
PTA 7-2 邻接表创建无向图 (20分) 采用邻接表创建无向图G ,依次输出各顶点的度. 输入格式: 输入第一行中给出2个整数i(0<i≤10),j(j≥0),分别为图G的顶点数和边数. 输入第二行为顶点的信息,每个顶点只能用一个字符表示. 依次输入j行,每行输入一条边依附的顶点. 输出格式: 依次输出各顶点的度,行末没有最后的空格. 输入样例: 5 7 ABCDE AB AD BC BE CD CE DE 输出样例: 2 3 3 3 3 一道水题,无需建图也能AC,第一种方法无需建图,第二…
题目地址 https://pta.patest.cn/pta/test/16/exam/4/question/680 5-18 Hashing - Hard Version (30分) Given a hash table of size NN, we can define a hash function . Suppose that the linear probing is used to solve collisions, we can easily obtain the status…
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/16/exam/4/question/669 5-7 Complete Binary Search Tree (30分) A Binary Search Tree (BST) is recursively defined as a binary tree which has the following properties: The left subtree of a node contains only nodes w…
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…
1004 Counting Leaves (30)(30 分) A family hierarchy is usually presented by a pedigree tree. Your job is to count those family members who have no child. Input Each input file contains one test case. Each case starts with a line containing 0 < N < 10…
6-7 统计某类完全平方数 (20分) 本题要求实现一个函数,判断任一给定整数N是否满足条件:它是完全平方数,又至少有两位数字相同,如144.676等. 函数接口定义: int IsTheNumber ( const int N ); 其中N是用户传入的参数.如果N满足条件,则该函数必须返回1,否则返回0. 裁判测试程序样例: #include <stdio.h> #include <math.h> int IsTheNumber ( const int N ); int main…
Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undirected graph G = (V, E). A spanning tree of G is a subgraph of G, say T = (V', E'), with the following properties…
实际题目 本题要求实现一个打印非负整数阶乘的函数. 函数接口定义: void Print_Factorial ( const int N ); 其中N是用户传入的参数,其值不超过1000.如果N是非负整数,则该函数必须在一行中打印出N!的值,否则打印“Invalid input”. 裁判测试程序样例: #include <stdio.h> void Print_Factorial ( const int N ); int main() { int N; scanf("%d"…
Given a connected undirected graph, tell if its minimum spanning tree is unique. Definition 1 (Spanning Tree): Consider a connected, undirected graph G = (V, E). A spanning tree of G is a subgraph of G, say T = (V', E'), with the following properties…
