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…
题意: n<=1000000,cas较大 思路:这是一道论文题 后缀数组已弃疗,强行需要DC3构造,懒得(不会)写 ..]of longint; n,m,i,j,len,ans,st:longint; ch:ansistring; flag:boolean; function min(x,y:longint):longint; begin if x<y then exit(x); exit(y); end; function cmp(a,b,l:longint):boolean; begin…
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 (~…
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-negative inte…
Power Strings Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 45008 Accepted: 18794 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 = "…
描述 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 de…
http://poj.org/problem?id=2406 (题目链接) 题意 给定一个字符串 L,已知这个字符串是由某个字符串 S 重复 R 次而得到的, 求 R 的最大值. Solution 后缀数组论文题,然而nlogn的倍增竟然TLE了,那给3s是什么意思→_→ 做法比较简单,穷举字符串 S 的长度 k,然后判断是否满足.判断的时候,先看字符串 L 的长度能否被 k 整除,再看 suffix(1)和 suffix(k+1)的最长公共前缀是否等于 n-k.在询问最长公共前缀的时候,suf…
Given two numbers represented as strings, return multiplication of the numbers as a string. Note: The numbers can be arbitrarily large and are non-negative. 思路:直观思路,就是模拟乘法过程.注意进位.我写的比较繁琐. string multiply(string num1, string num2) { vector<int> v1, v…
上一篇<Android自己定义组件系列[6]--进阶实践(3)>中补充了关于Android中事件分发的过程知识.这一篇我们接着来分析任老师的<可下拉的PinnedHeaderExpandableListView的实现>. 一.StickyLayout中的OnGiveUpTouchEventListener接口的作用是什么? public interface OnGiveUpTouchEventListener { public boolean giveUpTouchEvent(Mo…
原题链接 Description 模板题啦~ Code //[模板]AC自动机(加强版) #include <cstdio> #include <cstring> int const N=2e5; int const L=1e6+10; int n; char s1[200][80],s2[L]; int rt,ndCnt; int ch[N][26],val[N],fail[N],pre[N]; void ins(char s[],int id) { int len=strlen…
