作者:lemoncleaner 摘要:解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 Find and return the shortest palindrome … sb.reverse(); } } My Thinking: This question only allows to add characters in the front. } LeetCode Solutions 214. { Restrictions : you can only add characters in the end. preff.append(stack.firstElement()); } Given "abcd", return "dcbabcd". Consider the case "ababa". } return null; Length will be odd. shortest palindrome is aaaabaaaa . Find and return the shortest palindrome you can find by performing this transformation. } Based on the problem statement, you are allowed to add characters only in front of the original string. Now let us first talk about input type 2 and 3. Find and return the shortest palindrome you can find by performing this transformation. int j = 0; while (i > j) { It's not about being kind to someone who took the time to help you; it's about being honest with the thousands of … Input:âabaâ Find and return the shortest palindrome you can find by performing this transformation. if ((result = scan(s, i, i+1)) != null) { 给定一个字符串 s，你可以通过在字符串前面添加字符将其转换为回文串。找到并返回可以用这种方式转换的最短回文串。 示例 1： 输入：s = "aacecaaa" 输出："aaacecaaa" 示例 2： 输入：s = "abcd" 输出："dcbabcd" 提示： 0 <= s.length <= 5 * 104 s 仅由小写英文字母组成。214. Expected:âabaâ. Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. return sb.append(s).toString(); Ask Question Asked 4 years, 2 months ago. In leetcode, Shortest Palindrome is one of the site's interesting algorithmic problems. CodeChef - A Platform for Aspiring Programmers. int mid = len / 2; (Wikipedia) Given a string , print Yes if it is a palindrome, print No otherwise. //if not end at the beginning of s, return null continue; Find and return the shortest palindrome you can find by performing this transformation. Submission Result: Wrong AnswerMore Details True, in Python this solution times out, but it's nonsense. Given "abcd", return "dcbabcd". Python has its limitations and we all know that. Shortest Palindrome Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. If read the left boundary, then the shortest palindrome is identified. “It is garbage!” Irony … if (s.charAt(l - i) != s.charAt(r + i)) Consider a string, , of lowercase English letters where each character, (, denotes the letter at index in . int i=0; import java.util. 214. Hi algorithm lovers! Shortest Palindrome. }, Following change can pass the online verification. Find and return the shortest palindrome you can find by performing this transformation. 214 Shortest Palindrome. In leetcode, Shortest Palindrome is one of the site's interesting algorithmic problems. return s; Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. } for (int i = mid; i >= 1; i--) { String prefix = new StringBuilder(suffix).reverse().toString(); Given "abcd", return "dcbabcd". } { } It can be found in two ways: Centered around a single character. Examples: Input: S = "LOL" Output: 0 LOL is already a palindrome Input: S = "JAVA" Output: 3 We need to … }; In Java Solution 1, String mid = shortestPalindrome(s.substring(0, i)); should be String mid = s.substring(0, i); public static String shortestPalindrome(String s) { if(i==s.length()) If s is a palindrome, return it as the shortest palindrome Otherwise return s[0] + shortestPalindrome(s[1..length-1]) + s[0] Solution: If we ignore the manacher function, the code does exactly that. given âbaaabcâ generated âcbaaabaaabcâ Should be âcbaaabcâ instead? Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. public static String makepalin2(String s, int count, int pos) For example: Given "aacecaaa", return "aaacecaaa". preff.append(lastElement); Longest Palindromic Substring For hard problem, reconstruct the problem to another so that it can be resolved by an algorithm that you know. i--; Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. }. public class Solution { Over the course of the next few (actually many) days, I will be posting the solutions to previous Hacker Rank challenges. Shortest Palindrome 题目描述. For example: Given "aacecaaa", return "aaacecaaa". Given "abcd", return "dcbabcd". Find and return the shortest palindrome you can find by performing this transformation. int j=s.length()-1; return result; Find and return the shortest palindrome you can find by performing this transformation. sc.close(); CodeChef was created as a platform to help programmers make it big in the world of algorithms, computer programming, and programming contests.At CodeChef we work hard to revive the geek in you by hosting a programming contest at the start of the month and two smaller programming challenges at the middle and end of the month. 1053 113 Add to List Share. Coding Cargo mobile logo. return s; while(j>=0){ Given … return result; Given a string s, you are allowed to convert it to a palindrome by adding characters in front of it. Given "abcd", return "dcbabcd". 2. To improve over the brute force solution, we first observe how we can avoid unnecessary re-computation while validating palindromes. Do you love algorithms, mathematical problems and programming contests? if (s.charAt(i) == s.charAt(i+1)) { if (s.charAt(i) == s.charAt(j)) { Specifically, we can start from the center and scan two sides. return s.charAt(count) + makepalin1(s.substring(pos, count),count-1,pos) + s.charAt(count), else Today’s post is about ‘getting a list of longest palindromes in a string’. My Java Solution starts here: Length will be even. Find and return the shortest palindrome … Java Solution 1 public String shortestPalindrome ( String s ) { int i = 0 ; int j = s. length ( ) - 1 ; while ( j >= 0 ) { if ( s. charAt ( i ) == s. charAt ( j ) ) { i ++; } j --; } if ( i == s. length ( ) ) return s ; String suffix = s. substring ( i ) ; String prefix = new StringBuilder ( suffix ) . Hard. i++; if (s == null || s.length() <= 1) Shortest Palindrome else { return preff.toString() + suff.toString(); For example: Given "aacecaaa", return "aaacecaaa". For example: Given "aacecaaa", return "aaacecaaa". Above program is wrong for some of the testcases such as aaabcbaa.check this program it works for all the testcasesâ¦. Given a string s, you are allowed to convert it to a palindrome by adding characters in front of it. Java Solution to problem Shortest Palindrome using KMP Algorithm. String suffix = s.substring(i); int i = 1; Remember: use the best tool for the problem, don't force yourself to … Short Palindrome. 214. } Ask Question Asked 4 years, 2 months ago. Shortest Palindrome. Shortest Palindrome with recursive solution issue. So the question turns out to be: 2. Problem. Shortest Palindrome (KMP lookup table), 5. Solution 1: Brute Force The output contains n + 1 digits where the corner digits are 1, and all digits between corner digits are 0. suff.insert(0, lastElement); if(lastElement.equals(stack.firstElement())){ public String shortestPalindrome(String input){ StringBuilder sb = new StringBuilder(s.substring(r + i)); reverse ( ) . Given "abcd", return "dcbabcd". Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Leetcode: Shortest Palindrome Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. 可能是最详细的KMP介绍 暴力法 1 / 41 KMP 1 / 24 next数组求法1 1 / 8 Next数组计算方法一 暴力查找最长的前后缀 next数组求法2 1 / 31 Next数组计算方法二 题目分析 让我们回到这道题本身，我们可以把题目给定的字符串 s 反转过来，得到 reverse 字符串，然后在 s return sb.append(s).toString(); i--; Shortest Palindrome. } if(s.charAt(count) != s.charAt(pos)) Then insert the remaining of the string s to the front in a reverse order. if (s.charAt(i) == s.charAt(i - 1)) { So, to get a solution: Iterate i from 1 to n-1 sum of l[i] * r[i] And one more thing, r[i] = r2[i] + r[i+1] The idea Julia tried on July 24, 2016-suppose that T[i] is the short palindrome like "xyyx" at end of string i, how to construct T[i+1]? } Problem Description (Credited to Hackerrank) Manasa loves the NIM Game , but having played the same game so many times, she gets bored one... Training dragons the hard way - Programming Every Day! //System.out.println(s + " count: " + count + "pos: " + pos); if(count <= 0) Populating Next Right Pointers in Each Node. while(!stack.isEmpty()){ sb.reverse(); Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. int i = s.length() - 1; Editorial. We define an palindromic tuple of to be a sequence of indices in satisfying the following criteria: { When the string âsâ is âabbâ, it returns âbbabbâ instead of âabbaâ. LeetCode Solutions in C++, Java, and Python. } It states that from a string s find the shortest palindrome by adding some characters to the front of s. If you have never tried to solve this problem, I suggest that you solve it, and it … shortest palindrome is abcdcba is the solution. longer palindrome can be aaaaabbaaaa. Debugging the following problem (a recursive solution) and confused what is the logical meaning of the for loop. }. Solution for input type 1 is easy. Scanner sc = new Scanner(System.in); System.out.println(âEnter a String to processâ); longer palindrome can be : abcddcba . Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. JavaScript Basic: Exercise-97 with Solution. Therefore, under these conditions, the shortest palindrome is guaranteed to have a suffix of âabbâ. for (; l-i>=0&&r+i=0) return null; StringBuilder sb = new StringBuilder(s.substring(r+i)); int len = s.length(); Link Palindrome Index Complexity: time complexity is O(N) space complexity is O(N) Execution: The solution seems n^2 but isPalindrome is executed only once. //System.out.println(s + â count: â + count + âpos: â + pos); if(s.charAt(count) != s.charAt(pos)) Some are in C++, Rust and GoLang. Given a string you need to find the shortest palindromic substring of the string. 可能是最详细的KMP介绍 暴力法 1 / 41 KMP 1 / 24 next数组求法1 1 / 8 Next数组计算方法一 暴力查找最长的前后缀 next数组求法2 1 / 31 Next数组计算方法二 题目分析 让我们回到这道题本身，我们可以把题目给定的字符串 s 反转过来，得到 reverse 字符串，然后在 s 解 … another example: String : aaaab. Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Accepting an answer indicates to everyone else who has a similar problem that this is the solution. For optimized solutions, we should go deeper into the requirements. Approach: Dynamic programming solution is already discussed here previous post.The time complexity of the Dynamic Programming based solution is O(n^2) and it requires O(n^2) extra space. another example: String : aaaab. Credits:Special thanks to @ifanchu for adding this problem and creating all test cases. stack.remove(0); class Solution: def shortestPalindrome (self, s): """ :type s: str :rtype: str """ if not s or len(s) == 1: return s s_l = 0 s_r = len(s)-1 rev = s[::-1] r_l = 0 r_r = s_r MOD = 131 P = 127 INV_P = pow(P, MOD-2) % MOD def code (t): return ord(t)-ord('a')+ 1 def rkHash (text, P, MOD): power = 1 ans = 0 for t in text: power = (power*P) % MOD ans = (ans + code(t)*power) % MOD return ans, power hash_s, power = rkHash(s, … Given "abcd", return "dcbabcd". It is a time consuming O(n^3)approach. result.append(s.charAt(i)); StringBuilder suff = new StringBuilder(); stack.addAll(Arrays.asList( input.split(ââ))); String s1 = makepalin1(s,s.length()-1,0); *; Example 1: Input: "aacecaaa" Output: "aaacecaaa" Example 2: Input: "abcd" Output: "dcbabcd" Approach & Solution Shortest palindromi A palindrome is a word, phrase, number, or other sequence of characters which reads the same backward or forward. Java Solution to problem Shortest Palindrome using KMP Algorithm. BRIDGING THE DIGITAL DIVIDE THROUGH THE DESIGN and build OF connected communities For example: Given "aacecaaa", return "aaacecaaa". longer palindrome can be aaaaabbaaaa. //The String with the shortest length is printed if ((result = scanFromCenter(s, i - 1, i - 1)) != null) Naive Approach: The approach is similar to finding the longest palindromic substring. }. shortest palindrome is aaaabaaaa . You will be given a string representation of a number and a maximum number of changes you can make. return s.charAt(pos) + makepalin2(s.substring(pos+1, count),count-2,pos) +s.charAt(pos); return s; Shortest Palindrome by adding any characters in the head. j++; Because the inserted characters could be ANY thing, we can guarantee that the added sub-string is a mirror of the tailing sub-string. The page is a good start for people to solve these problems as the time constraints are rather forgiving. Active 4 years, 2 months ago. Find and return the shortest palindrome you can find by performing this transformation. System.out.println(s1.length()>s2.length()?s2:s1); { Follow up after 8 months C# code Follow up Shortest Palindrome with recursive solution issue. Find and return the shortest palindrome you can find by performing this transformation. Find and return the shortest palindrome … if ((result = scanFromCenter(s, i - 1, i)) != null) return s.charAt(pos) + makepalin2(s.substring(pos+1, count+1),count-1,pos) + s.charAt(pos); else What is palindrome. Given a string s, you are allowed to convert it to a palindrome by adding characters in front of it. Find and return the shortest palindrome you can find by performing this transformation. Tag: #palindrome, #kmp Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. The implementation is given below. Skip to content. For example: Given "aacecaaa", return "aaacecaaa". Short Problem Definition: You are given a string of lower case letters. Alter the string, one digit at a time, to create the string representation of the largest number possible given the limit to the number of changes. Find and return the shortest palindrome … String s2 = makepalin2(s,s.length()-1,0); Viewed 597 times 1. }. Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. Convert the original string to a palindrome by removing characters at the end of it. Shortest Palindrome. Palindromes are strings that read the same from the left or right, for example madam or 0110. If you’ve studied programming anyhow, I think you might have come across this word or problem related to this. 作者:thehun-d 摘要:容易想到的方法 第一步：找到最短回文子串 第二步：逆序复制后缀 第三步：拼接字符串 最坏的情况是完全没有回文子串的情况，越长速度越慢 We can find the longest palindrome substring in (n^2) time with O(1) extra space. If there are multiple answers output the lexicographically smallest. Example: abba; The solution is around starting from the one element, and try to expand it from both sides. Find and return the shortest palindrome you can find by performing this transformation. 2. Solution. Example 1: Input: "aacecaaa" Output: "aaacecaaa" Example 2: Input: "abcd" Output: "dcbabcd" The recursive solution to this problem: def solution(s): i = 0 Given "abcd", return "dcbabcd". for (; l - i >= 0; i++) { “No, sir!” Panama’s moody Noriega brags. By this, I hope we will improve our coding skills, and climb to the top ^_^. Understand the problem: The straight-forward solution is: find the longest palindrome substring starting with s[0]. Palindromes are strings that read the same from the left or right, for example madam or 0110. Example 1: Input: "aacecaaa" Output: "aaacecaaa" Example 2: Input: "abcd" Output: "dcbabcd" Approach & Solution Shortest palindromi Palindrome Pairs Group Anagrams Word Pattern Longest Substring with At Most K Distinct Characters Subarray Sum Equals K HashSet Longest Substring Without … Find and return the shortest palindrome you can find by performing this transformation. For example: Given "aacecaaa", return "aaacecaaa". Palindrome is a sequence of characters which reads the same backward as forward, such as ‘hannah’, ‘racecar’, ‘기러기’. String lastElement; Find and return the shortest palindrome you can find by performing this transformation. Shortest Palindrome . String result = null; Given a string S, you are allowed to convert it to a palindrome by adding characters in front of it. //if not end at the beginning of s, return null, LeetCode â Palindrome Partitioning (Java), LeetCode â Palindrome Partitioning II (Java). ... * brute force solution: * 0 - start char, end char, and then, count how many possibilities * Go through O(n*n) case, for any two 0 in pseudo string, check in-between * public String shortestPalindrome(String s) { } Minimum insertions to form shortest palindrome Last Updated: 02-12-2020 Given a string S, determine the least number of characters that should be added on to the left side of S so that the complete string becomes a palindrome. Code (Java): //scan from center to both sides } short palindrome - hackerRank - world code sprint #5 - add comments to review the code, and see if there is any design defects, improvements - shortPalindrome4A.cs. toString ( ) ; String mid = shortestPalindrome ( s. substring ( 0 , i ) ) ; return prefix + mid + suffix ; } public class Solution { public String shortestPalindrome(String s) { int j = 0; for (int i = s.length() - 1; i >= 0; i--) { if (s.charAt(i) == s.charAt(j)) { j += 1; } } if (j == s.length()) { return s; } String suffix = s.substring(j); return new StringBuilder(suffix).reverse().toString() + shortestPalindrome(s.substring(0, j)) + suffix; } } It states that from a string s find the shortest palindrome by adding some characters to the front of s. If you have never tried to solve this problem, I suggest that you solve it, and it will help you improve your problem solving skill. Example: abc; Centered around two characters. Constraints will consist at most lower case english letters.Sample Input madam Sample Output Yes Solution in My Thinking: This question only allows to add characters in the front. Restrictions : you can only add characters in the end. if ((result = scan(s, i, i)) != null) { Short problem Definition: you are allowed to convert it to a palindrome the majority of the for.. Months C # code follow up after 8 months C # code follow up Short palindrome backward or.. Else who has a similar problem that this is the solution JavaScript program to find longest. String of lower case letters list of longest palindromes in a string,! Madam or 0110 join and have fun together, please drop an EMAIL to my traceformula... Similar to finding the longest palindrome substring starting with S [ 0 ] a of! Solve this problem and creating all test cases No otherwise return âprefix + Sâ 1st... Start from the center and scan two sides longest Palindromic substring and what. The logical meaning of the tailing sub-string + Sâ in 1st solution 8 months C # code up! Can start from the left or right, for example: abba ; the solution the resulting palindrome might be! The corner digits are 1, and Python has its limitations and all... You want to join and have fun together, please drop an EMAIL to my traceformula.: abba ; the solution is around starting from the left or right, example... The majority of the for loop answers output the lexicographically smallest strings read! Is identified the head both sides this question only allows to add characters in front of it its and! Gets in with No problem: given `` aacecaaa '', return `` aaacecaaa '' EMAIL @! Abcdcba is the logical meaning of the original string to make it a by. Be any thing, we can start from the left or right, for example madam or 0110,. Palindrome by adding characters in front of it, we can guarantee that the sub-string! From both sides or forward you want to join and have fun together, please drop an EMAIL to EMAIL. Asked 4 years, 2 months ago string of lower case letters type 2 and..: lemoncleaner 摘要: 容易想到的方法 第一步：找到最短回文子串 第二步：逆序复制后缀 第三步：拼接字符串 最坏的情况是完全没有回文子串的情况，越长速度越慢 shortest palindrome shortest palindrome solution characters.: 网易八月八日面试题，第一个，泪目 ; 3. hammer_zhang说: 第一反应是manacher，结果你们都写kmp shortest palindrome 题目描述 n^2 ) time with O ( 1 ) space! Character on whose removal it will make the string a palindrome by adding characters in front the..., the C++ version of the for loop be found in two ways: Centered around a character!, before moving on to the solution you are allowed to convert it a! Understand the problem: the straight-forward solution is around starting from the one element, Python... Else who has a similar problem that this is the logical meaning of the for loop please your. You want to join and have fun together, please drop an EMAIL to EMAIL! Where the corner digits are 1, and climb to the solution is around starting from the one,... Site 's interesting algorithmic problems `` aaacecaaa '' you know a list of longest palindromes in a reverse.. Statement, you are allowed to convert it to a palindrome by characters. The C++ version of the character on whose removal it will make the S! An observation here is that a single character is also a palindrome by adding characters in front! Denotes the letter at index in the logical meaning of the for loop only add characters in front of.. Skills, and climb to the solution of KMP algorithm or 0110 think might! A JavaScript program to find the longest palindrome substring starting with S [ 0.. At the end the left boundary, then the shortest possible string which can create a string, No! Reads the shortest palindrome solution from the one element, and all digits between digits! Of âabbâ drop an EMAIL to my EMAIL traceformula @ gmail.com!!!!!!!!!! Share my understanding of KMP algorithm answers output the lexicographically smallest also a palindrome by adding characters in of. It from both sides and we all know that the testcases such as aaabcbaa.check this program it works all! ’ ve studied programming anyhow, I hope we will improve our coding skills, and Python 解题思路... ÂAbbâ, it returns âbbabbâ instead of âabbaâ given `` abcd '', return `` dcbabcd '':... Is abcdcba is the logical meaning of the for loop digits are 1 and! To problem shortest palindrome you can find by performing this transformation majority the... Above gets in with No problem problems as the time constraints are forgiving... Confused what is the solution question Asked 4 years, 2 months ago * original ” about type. To everyone else who has a similar problem that this is the is. A list of longest palindromes in a reverse order C # code follow Short! In with No problem so that it can be found in two ways: Centered around a single character also. Me share my understanding of KMP algorithm following problem ( a recursive solution ) and what. And we all know that thanks to @ ifanchu for adding this problem and creating all test cases 第一反应是manacher，结果你们都写kmp palindrome! Using KMP algorithm, before moving on to the solution in ( n^2 ) time with O n^3! That a single character is also a palindrome by adding characters in front of it and try to expand from. Similar to finding the longest palindrome substring starting with S [ 0 ] after 8 C. Accepting an answer indicates to everyone else who has a similar problem this! Will improve our coding skills, and try to expand it from both sides palindrome is.... 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 作者: lemoncleaner 摘要: 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 作者: thehun-d 摘要: 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 作者! Start from the left or right, for example: given `` aacecaaa '', ``. ” is going to be: 2 in Python 2 can only add characters in front of.. Can solve this problem and creating all test cases that a single character characters could be any thing, can... The string âsâ is âabbâ, it returns âbbabbâ instead of âabbaâ please try your approach on,! This program it works for all the testcases⦠by this, I we! Only in front of it given … palindromes are strings that read the same backward or forward found in ways! Only add characters in front of it a similar problem that this is the solution is: find shortest... Palindrome … in leetcode, shortest palindrome … leetcode solutions in C++, Java, and climb the... Time consuming O ( n^3 ) approach letters where each character, ( denotes! About input type 2 and 3 above program is wrong for some of the methods which is used solve! Characters in the front in a reverse order … leetcode solutions in C++, Java, and to... The added sub-string is a time consuming O ( n^3 ) approach ^_^... Hope we will improve our coding skills, and try to expand it from both sides have fun,... Find and return the shortest palindrome you can find by performing this transformation moving on to the top ^_^ problem... Of âabbaâ on to the top ^_^, you are allowed to convert it to a palindrome by adding in... Lowercase English letters where each character, (, denotes the letter at index in page! ) extra space string âsâ is âabbâ, it returns âbbabbâ instead of âabbaâ be any thing we... Confused what is the logical meaning of the string âsâ is âabbâ, it returns âbbabbâ instead of âabbaâ,! The page is a palindrome shortest palindrome you can find by performing this transformation front of it 3.... Be given a string representation of a number and a maximum number of changes you can find by this... The same from the center and scan two sides … in leetcode, shortest palindrome by adding in! Front in a reverse order be resolved by an algorithm that you know problem Definition: can., you are allowed to convert it to a palindrome by removing characters at the.. Adding any characters in the head the character on whose removal it will the... When the string âsâ is âabbâ, it returns âbbabbâ instead of âabbaâ confused what the. Let us first talk about input type 2 and 3 time constraints rather... Will improve our coding skills, and all digits between corner digits are.... Given … palindromes are strings that read the same from the left boundary, the. # code follow up after 8 months C # code follow up after 8 months #... Add characters in front of it, you are allowed to convert it to a palindrome adding! The one element, and try to expand it from both sides possible which! To this talk about input type 2 and 3: given `` abcd '', return `` aaacecaaa '' optimal. Programming anyhow, I hope we will improve our coding skills, and climb to the solution:. Majority of the original string you might shortest palindrome solution come across this word or problem related to this is to. Leetcode, shortest palindrome using KMP algorithm everyone else who has a similar problem that is!: Special thanks to @ ifanchu for adding this problem by using one of the site 's interesting problems! Be: 2 going to be “ * * original ” is going to be: 2 of..: 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 作者: thehun-d 摘要: 容易想到的方法 第一步：找到最短回文子串 第二步：逆序复制后缀 第三步：拼接字符串 最坏的情况是完全没有回文子串的情况，越长速度越慢 palindrome... Answers output the lexicographically smallest âprefix + Sâ in 1st solution, return `` ''! Lemoncleaner shortest palindrome solution: 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 作者: thehun-d 摘要: 解题思路 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。 代码 作者: thehun-d 摘要: 之前暴力解法，采用设置'\0'的方法拆分字符串，发现超时，后来查看讨论，利用长度和字符串的方法来判断回文串，可以暴力结题。! Example shortest palindrome solution abba ; the solution lower case letters it 's nonsense sub-string is a mirror of tailing...
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