POJ2406 Power Strings 题解 KMP算法】的更多相关文章

题目链接:http://poj.org/problem?id=2406 题目大意:给你一个字符串 \(t\) ,\(t\) 可以表示为另一个小字符串循环了 \(K\) 了,求最大的循环次数 \(K\) . 题目分析:设字符串长度为 \(m\) ,如果 \(m-1-nxt[m-1]\) 能够整除 \(m\) ,则 \(K=m/(m-1-nxt[m-1])\) ,否则 \(K=1\) . 实现代码如下: #include <cstdio> #include <string> using…
poj2406 Power Strings(kmp) 给出一个字符串,问这个字符串是一个字符串重复几次.要求最大化重复次数. 若当前字符串为S,用kmp匹配'\0'+S和S即可. #include <cstdio> #include <cstring> using namespace std; const int maxn=2e6+5; char s1[maxn], s2[maxn]; int n1, n2, nxt[maxn], ans; int main(){ while (~…
Power Strings Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 30069   Accepted: 12553 Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "…
Power Strings Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 39291 Accepted: 16315 Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcd…
电源串 时间限制: 3000MS   内存限制: 65536K 提交总数: 53037   接受: 22108 描述 给定两个字符串a和b,我们定义a * b是它们的连接.例如,如果a ="abc"和b ="def",那么a * b ="abcdef".如果我们将连接看作是乘法,则用正常的方式定义非负整数的指数:a ^ 0 =""(空字符串)和a ^(n + 1)= a *(a ^ n). 输入 每个测试用例都是一行代表s的输…
Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, exponentiation by a non-negative integer is defin…
题目链接:https://vjudge.net/problem/POJ-2406 Power Strings Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 52631   Accepted: 21921 Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc"…
Power Strings Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = "abcdef". If we think of concatenation as multiplication, exponentiation by a non…
Power Strings   Time Limit: 3000MS   Memory Limit: 65536K Total Submissions: 47748   Accepted: 19902 Description Given two strings a and b we define a*b to be their concatenation. For example, if a = "abc" and b = "def" then a*b = &quo…
首先先讲一下KMP算法作用: KMP就是来求在给出的一串字符(我们把它放在str字符数组里面)中求另外一个比str数组短的字符数组(我们叫它为ptr)在str中的出现位置或者是次数 这个出现的次数是可以重叠的 例如:在数组   ababa    中  aba的出现次数-----------它的答案是2------分别是从[0---2]  [2---4] 他们是可以重叠的,但是不可以完全重叠(废话T_T) KMP算法主要有两个模板 1.https://blog.csdn.net/starstar1…