简单题. #include <iostream> #include <string> using namespace std; int main() { int T; cin >> T; while (T--) { string s; cin >> s; int l = 0; int r = s.size() - 1; while (l < r && s[l] == s[r]) { l++; r--; } if (l >= r)…

传送门: Palindrome Index Problem Statement You are given a string of lower case letters. Your task is to figure out the index of the character on whose removal it will make the string a palindrome. There will always be a valid solution. In case the stri…

Given a string s, cut s into some substrings such that every substring is a palindrome. Return the minimum cuts needed for a palindrome partitioning of s. Given s = "aab", Return 1 since the palindrome partitioning ["aa", "b"…

214-Shortest 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. For example: Given "aacecaaa", r…

Given a string s, partition s such that every substring of the partition is a palindrome. Return all possible palindrome partitioning of s. For example, given s = "aab", Return [ ["aa","b"], ["a","a","…

Valid Palindrome Given a string, determine if it is a palindrome, considering only alphanumeric characters and ignoring cases. For example,"A man, a plan, a canal: Panama" is a palindrome."race a car" is not a palindrome. Note:Have you…

A palindrome is a word, number, or phrase that reads the same forwards as backwards. For example,the name “anna” is a palindrome. Numbers can also be palindromes (e.g. 151 or 753357). Additionallynumbers can of course be ordered in size. The first few…

Problem: Given a string, determine if a permutation of the string could form a palindrome. For example,"code" -> False, "aab" -> True, "carerac" -> True. General Analysis: This problem is easy. Basic idea is: iff s w…

Question Given a list of unique words, find all pairs of distinct indices (i, j) in the given list, so that the concatenation of the two words, i.e. words[i] + words[j] is a palindrome. Example 1:Given words = ["bat", "tab", "cat&…

第一个题目是将整数进行反转,这个题实现反转并不难,主要关键点在于如何进行溢出判断.溢出判断再上一篇字符串转整数中已有介绍,本题采用其中的第三种方法,将数字转为字符串,使用字符串比较大小的方法进行比较. 代码如下: class Solution { public: int reverse(int x) { ]={,,,,,,,,,}; ]; ,flag=; ) flag=; else ) { flag=-; x=-x; } else ; ; ) { getnum[count]=(x%); x=x/…