classSolution{public:intstrStr(string haystack, string needle){/* find the first needle in haystack */intret =-1, pos =0;intneedle_len = needle.size();//bool sign = false;for(inti =0; i < haystack.size(); ++i){if(haystack[i] == needle[pos]){if(pos == needle_len -1)return...
题目信息 Given two stringsneedleandhaystack, return the index of the first occurrence ofneedleinhaystack, or-1ifneedleis not part ofhaystack. 给定两个字符串 needle 和 haystack,返回 needle 在 haystack 中第一次出现的索引,如果 needle 不是 haystack 的一部分,则返回-1。 Input: haystack = "sadbut...
Given two stringsneedleandhaystack, return the index of the first occurrence ofneedleinhaystack, or-1ifneedleis not part ofhaystack. implSolution{pubfnstr_str(haystack:String,needle:String)->i32{lethlen=haystack.len();letnlen=needle.len();ifhlen<nlen{return-1;}foriin0..=(hlen-nlen){if&...
The first occurrence is at index 0, so we return 0. Example 2: Input:haystack = "leetcode", needle = "leeto"Output:-1Explanation:"leeto" did not occur in "leetcode", so we return -1. Constraints: 1 <= haystack.length, needle.length <= 104 haystackandneedleconsist of only lowercas...
- LeetCodeleetcode.com/problems/find-the-index-of-the-first-occurrence-in-a-string/description/ 解题思路 二重循环,没什么特别的 class Solution { public: int strStr(string haystack, string needle) { int index = 0; bool flag = true; for(int i = 0; i < haystack.size(); i++) { ...
Write a Python program to find the first repeated character in a given string where the index of the first occurrence is smallest.Visual Presentation:Sample Solution:Python Code:# Define a function that finds the first repeated character in a string with the smallest distance between the ...
using System; using System.Threading; using System.Globalization; class Sample { public static void Main() { string intro = "Find the first occurrence of a character using different " + "values of StringComparison."; string resultFmt = "Comparison: {0,-28} Location: {1,3}"; // Define ...
Reports the zero-based index of the first occurrence in this instance of any character in a specified array of Unicode characters. The method returns -1 if the characters in the array are not found in this instance.This member is overloaded. For complete information about this member, ...
targetString The string to be searched searchString The string to search for ignoreCase True or false Return Values Returns a zero-based index of the first occurrence of the search string in the input string. If the search string is not found, returns -1. Also, it returns -1 if ...
in"); myAL.Add("the"); myAL.Add("barn");// Displays the values of the ArrayList.Console.WriteLine("The ArrayList contains the following values:"); PrintIndexAndValues( myAL );// Search for the first occurrence of the duplicated value.stringmyString ="the";intmyIndex = myAL.IndexOf...