1059 Prime Factors (25 分)   Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p​1​​​k​1​​​​×p​2​​​k​2​​​​×⋯×p​m​​​k​m​​​​. Input Specification: Each input file contains one test case whi…

1059 Prime Factors (25分) 1. 题目 2. 思路 先求解出int范围内的所有素数,把输入x分别对素数表中素数取余,判断是否为0,如果为0继续除该素数知道余数不是0,遍历到sqrt(x)就够了 3. 注意点 输入数为1的情况, 输出1=1 4. 代码 #include<cstdio> #include<cstring> #include<cmath> #include<algorithm> using namespace std; #d…

题意: 输入一个正整数N(范围为long int),输出它等于哪些质数的乘积. trick: 如果N为1,直接输出1即可,数据点3存在这样的数据. 如果N本身是一个质数,直接输出它等于自己即可,数据点4存在这样的数据. AAAAAccepted code: #define HAVE_STRUCT_TIMESPEC #include<bits/stdc++.h> using namespace std; ]; int main(){ ios::sync_with_stdio(false); ci…

题目链接 http://www.patest.cn/contests/pat-a-practise/1059 Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 * p2^k2 *…*pm^km. Input Specification: Each input file contains one test ca…

时间限制 50 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 HE, Qinming Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1* p2^k2 *…*pm^km. Input Specification: Each input file contain…

题目 Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 * p2^k2 -pm^km. Input Specification: Each input file contains one test case which gives a positive integer N in the range of lo…

用素数筛选法即可. 范围long int,其实大小范围和int一样,一开始以为是指long long,想这就麻烦了该怎么弄. 而现在其实就是int的范围,那难度档次就不一样了,瞬间变成水题一枚,因为int根号后大小不超过60000. 即因子的大小不会超过60000,除非本身是质数. int 4 -2147438648-+2147438647long int 4 -2147438648-+2141438647 #include <iostream> #include <cstdio>…

素因子分解. #include<iostream> #include<cstring> #include<cmath> #include<algorithm> #include<cstdio> #include<map> #include<queue> #include<string> #include<stack> #include<vector> using namespace st…

1059. Prime Factors (25) 时间限制 50 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 HE, Qinming Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 * p2^k2 *…*pm^km. Input Specificatio…

1059 Prime Factors (25 分) Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p​1​​​k​1​​​​×p​2​​​k​2​​​​×⋯×p​m​​​k​m​​​​. Input Specification: Each input file contains one test case which…

Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p​1​​​k​1​​​​×p​2​​​k​2​​​​×⋯×p​m​​​k​m​​​​. Input Specification: Each input file contains one test case which gives a positive integer …

https://pintia.cn/problem-sets/994805342720868352/problems/994805415005503488 Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p​1​​​k​1​​​​×p​2​​​k​2​​​​×⋯×p​m​​​k​m​​​​. Input Specifi…

题意: 给出一个int型正整数N,要求把N分解成若干个质因子,如N=97532468,则把N分解成:97532468=2^2*11*17*101*1291.质因子按增序输出,如果某个质因子的幂是1,则1不输出. 思路:质因子分解的基础题. 首先,定义如下因子的结构体,用于存放最终的结果.因为N是一个int范围的正整数,由于2*3*5*7*11*13*17*19*23*29>INT_MAX,也就是说,任意一个int型整数,可分解出来的不同的质因子的个数不会超过10个,因此,数组只要开到10就够了.…

反正知道了就是知道,不知道也想不到,很快 #include <cstdio> #include <cstdlib> #include <vector> using namespace std; inline void print_prime_k(long long p, long long k) { printf("%lld", p); ) { printf("^%lld", k); } } int main() { long l…

1059. Prime Factors (25) 时间限制 100 ms 内存限制 65536 kB 代码长度限制 16000 B 判题程序 Standard 作者 HE, Qinming Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 * p2^k2 *-*pm^km. Input Specificati…

Source: PAT A1059 Prime Factors (25 分) Description: Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p​1​​​k​1​​​​×p​2​​​k​2​​​​×⋯×p​m​​​k​m​​​​. Input Specification: Each input file co…

1059. Prime Factors Given any positive integer N, you are supposed to find all of its prime factors, and write them in the format N = p1^k1 * p2^k2 *-*pm^km. Input Specification: Each input file contains one test case which gives a positive integer N…

1145 Hashing - Average Search Time(25 分)The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of integer keys from the table and output the average search time (…

L2-029 特立独行的幸福 (25 分)   对一个十进制数的各位数字做一次平方和,称作一次迭代.如果一个十进制数能通过若干次迭代得到 1,就称该数为幸福数.1 是一个幸福数.此外,例如 19 经过 1 次迭代得到 82,2 次迭代后得到 68,3 次迭代后得到 100,最后得到 1.则 19 就是幸福数.显然,在一个幸福数迭代到 1 的过程中经过的数字都是幸福数,它们的幸福是依附于初始数字的.例如 82.68.100 的幸福是依附于 19 的.而一个特立独行的幸福数,是在一个有限的区间内不依…

题目地址 https://pta.patest.cn/pta/test/16/exam/4/question/679 5-17 Hashing   (25分) The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers. The hash function is…

1078 Hashing (25 分)   The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers. The hash function is defined to be ( where TSize is the maximum size of the ha…

1145 Hashing - Average Search Time (25 分)   The task of this problem is simple: insert a sequence of distinct positive integers into a hash table first. Then try to find another sequence of integer keys from the table and output the average search ti…

1078 Hashing (25 分) The task of this problem is simple: insert a sequence of distinct positive integers into a hash table, and output the positions of the input numbers. The hash function is defined to be H(key)=key%TSize where TSize is the maximum s…

7.7 Design an algorithm to find the kth number such that the only prime factors are 3,5, and 7. 这道题跟之前LeetCode的那道Ugly Number II 丑陋数之二基本没有啥区别,具体讲解可参见那篇,代码如下: class Solution { public: int getKthMagicNumber(int k) { vector<, ); , i5 = , i7 = ; while (re…

06-图1 列出连通集   (25分) 给定一个有NN个顶点和EE条边的无向图,请用DFS和BFS分别列出其所有的连通集.假设顶点从0到N-1N−1编号.进行搜索时,假设我们总是从编号最小的顶点出发,按编号递增的顺序访问邻接点. 输入格式: 输入第1行给出2个整数NN(0<N\le 100<N≤10)和EE,分别是图的顶点数和边数.随后EE行,每行给出一条边的两个端点.每行中的数字之间用1空格分隔. 输出格式: 按照"{ v_1v​1​​ v_2v​2​​ ... v_kv​k​​ …

问题 L: Prime Factors 时间限制: 1 Sec  内存限制: 128 MB [提交][状态][论坛] 题目描写叙述 I'll give you a number , please tell me how many different prime factors in this number. 输入 There is multiple test cases , in each test case there is only one line contains a number N(…

01-复杂度2 Maximum Subsequence Sum   (25分) Given a sequence of K integers { N​1​​,N​2​​, ..., N​K​​ }. A continuous subsequence is defined to be { N​i​​,N​i+1​​, ..., N​j​​ } where 1≤i≤j≤K. The Maximum Subsequence is the continuous subsequence which has…

7-17 字符串关键字的散列映射(25 分) 给定一系列由大写英文字母组成的字符串关键字和素数P,用移位法定义的散列函数H(Key)将关键字Key中的最后3个字符映射为整数,每个字符占5位:再用除留余数法将整数映射到长度为P的散列表中.例如将字符串AZDEG插入长度为1009的散列表中,我们首先将26个大写英文字母顺序映射到整数0~25:再通过移位将其映射为3×32​2​​+4×32+6=3206:然后根据表长得到,即是该字符串的散列映射位置. 发生冲突时请用平方探测法解决. 输入格式: 输入第…

7-10 旅游规划(25 分) 有了一张自驾旅游路线图,你会知道城市间的高速公路长度.以及该公路要收取的过路费.现在需要你写一个程序,帮助前来咨询的游客找一条出发地和目的地之间的最短路径.如果有若干条路径都是最短的,那么需要输出最便宜的一条路径. 输入格式: 输入说明:输入数据的第1行给出4个正整数N.M.S.D,其中N(2≤N≤500)是城市的个数,顺便假设城市的编号为0~(N−1):M是高速公路的条数:S是出发地的城市编号:D是目的地的城市编号.随后的M行中,每行给出一条高速公路的信息,分别…

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…