题目: Given a string s and a dictionary of words dict, add spaces in s to construct a sentence where each word is a valid dictionary word. Return all such possible sentences. For example, given s = "catsanddog", dict = ["cat", "cats…
Given a pattern and a string str, find if str follows the same pattern. Here follow means a full match, such that there is a bijection between a letter in pattern and a non-empty word in str. Example 1: Input: pattern = "abba", str = "dog c…
G - 回文串 Time Limit:3000MS Memory Limit:65536KB 64bit IO Format:%I64d & %I64u Submit Status Description A palindrome is a symmetrical string, that is, a string read identically from left to right as well as from right to left. You are to write…
原文 Implement a function void reverse(char* str) in C or C++ which reverses a null-terminated string. 译文 用C或者C++实现一个void reverse(char* str)的函数来逆转一个已null终止的字符串 解答 在C++里,设置俩指针,一个指向字符串头,一个指向尾,然后每次交换一个字符和,指针分别像中间移就行了.这里借用一下Hawstein(http://hawstein.com/pos…
There are several ways: Write-Host: Write directly to the console, not included in function/cmdlet output. Allows foreground and background colour to be set. Write-Debug: Write directly to the console, if $DebugPreference set to Continue or Stop. Wri…
输入一个英文句子,翻转句子中单词的顺序,但单词内字符的顺序不变.句子中单词以空格符隔开. 为简单起见,标点符号和普通字母一样处理. 比如将"I am a student"转化为"student a am I". #include <stdio.h> #include <string.h> //逆转字符串 char* Reverse(char *str, int len) { if(str == NULL || len <= 0) ret…
