Implement strstr() 实现strstr函数功能 whowhoha@outlook.com Question: Implement strstr(). Returns the index of the first occurrence of needle in haystack, or –1 if needle is not part of haystack. int strStr(string haystack, string needle) { for (int i = 0;…
<?php/**练习:统计一段字符串中所有元音字母的个数(区分大小写)*/$str='This is a test file.'; //原始字符串echo $str.'<br>'; //先将这个字符串打印并换行$yynums=0; //声明一个统计元音个数的变量,并赋值为0$j=strlen($str); //使用strlen()函数来获取原始字符串的长度for($i=0;$i<$j;$i++){ //使用for循环来遍历字符串,注:字符串以数组形式来访问,下标是从0开始的,所以i…
题目链接:https://vjudge.net/problem/POJ-1226 Substrings Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 15122 Accepted: 5309 Description You are given a number of case-sensitive strings of alphabetic characters, find the largest string X,…
用数组实现strstr函数char * mystrstr(char * dest, char *src){ int i = 0; int j = 0; //匹配个数 int count = 0; int len = strlen(src); char * p = NULL; while (dest[i] != '\0') { //if (dest[i] == src[i]); while (dest[i] == src[j] && dest[i])//匹配个数 = 字符串长度 l l l…
Implement strStr(). Returns the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Update (2014-11-02): The signature of the function had been updated to return the index instead of the pointer. If you still…
Implement strStr(). Return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Example 1: Input: haystack = "hello", needle = "ll" Output: 2 Example 2: Input: haystack = "aaaaa",…
方法一:暴力解法 int strStr(string haystack, string needle) { if (needle.empty()) ; int M = haystack.size(); int N = needle.size(); ; i <= M - N; i++) { int j; ; j < N; j++) { if (needle[j] != haystack[i + j]) { break; } } if (j == N) return i; } ; } 方法二:利用…
