http://acm.hdu.edu.cn/showproblem.php?pid=5311 Hidden String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others)Total Submission(s): 1499 Accepted Submission(s): 534 Problem Description Today is the 1st anniversar…
Hidden String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 52 Accepted Submission(s): 25 Problem Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets a…
题目连接 http://acm.hdu.edu.cn/showproblem.php?pid=5311 Hidden String Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets a string s of length n. He wants to find three nonoverlapping substrings $s[l_1..r_1], s[l_2..r_2…
HDU 2594 Simpsons’ Hidden Talents(辛普森一家的潜在天赋) Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others) [Description] [题目描述] Homer: Marge, I just figured out a way to discover some of the talents we weren’t aware we had. Marge:…
hdu 3553 Just a String (后缀数组) 题意:很简单,问一个字符串的第k大的子串是谁. 解题思路:后缀数组.先预处理一遍,把能算的都算出来.将后缀按sa排序,假如我们知道答案在那个区间范围内了(假设为[l,r]),那么我们算下这个区间内的lcp的最小值(设最小值的位置为mid,大小为x),如果x*(r-l+1)>=k,那么,答案就是这个区间的lcp的最小值的某一部分(具体是哪一部分,画个图稍微算下就出来了).如果x * ( r - l + 1 ) < k 那么我们分两种情况…
Hidden String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 1679 Accepted Submission(s): 591 Problem Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, get…
This is a "Pick One" Problem :[Problem:344-Reverse String] Write a function that takes a string as input and returns the string reversed. Example: Given s = "hello", return "olleh". Python实现字符串反转: s [::-1] class Solution: d…
Hidden String Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 262144/262144 K (Java/Others) Total Submission(s): 803 Accepted Submission(s): 302 Problem Description Today is the 1st anniversary of BestCoder. Soda, the contest manager, gets…
关于String为值类型还是引用类型的讨论一直没有平息,最近一直在研究性能方面的问题,今天再次将此问题进行一次明确.希望能给大家带来点帮助,如果有错误请指出. 来看下面例子: //值类型 int a = 1; int b = a; a = 2; Console.WriteLine("a is {0},b is {1}", a, b); //字符串 String str1 = "ab"; String str2 = str1; str1 = "abc&quo…
Leetcode 344:Reverse String 反转字符串 公众号:爱写bug Write a function that reverses a string. The input string is given as an array of characters char[]. Do not allocate extra space for another array, you must do this by modifying the input array in-place wit…