Find the Index of the First Occurrence in a String - Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Example 1: Input: haystack = "sadbutsad", needle = "sad" Output: 0 …

class Solution { public: int strStr(string haystack, string needle) { const int m = haystack.length(); const int n = needle.length(); for (int i = 0; i < m - n + 1; i++) if (haystack.substr(i, n) == needle) …

Apr 12, 2024 · Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Example 1: Input: haystack = "sadbutsad", needle = "sad" Output: 0. Explanation: "sad" occurs at index 0 and 6. The first occurrence is at index 0, so we return 0. Example 2:

LeetCode 28, Find the Index of the First Occurrence in a String, is an easy-level problem where you’re given two strings: haystack (the main string) and needle (the substring to find). Your task is to return the index of the first occurrence of needle in haystack, or -1 if needle isn’t found.

Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Example 1: Output: 0. Explanation: "sad" occurs at index 0 and 6. The first occurrence is at index 0, so we return 0. Example 2: Output: -1.

May 28, 2024 · Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Examples: Example 1: Input: …

Dec 20, 2023 · currently practicing some leetcode questions. I was trying to solve the following: Q:"Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack." My answer is as follows: def strStr(self, haystack, needle): """ :type haystack: str. :type needle: str. :rtype: int.

Aug 12, 2023 · Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. STEP 1: Implement the ‘strStr’ Function: The...

Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Input: haystack = "sadbutsad", needle = "sad" Output: 0. Explanation: "sad" occurs at index 0 and 6. …

Feb 25, 2022 · if the string is defined as input_string = "this is a sentence" and if we wish to find the first occurrence of the word is , then will it work? # first occurence of word in a sentence input_string = "this is a sentence" # return the index of the word matching_word = "is" input_string.find("is")