Given two strings string1 and string2, the task is to find the smallest substring in string1 containing all characters of string2. Examples : Input: string = “Cplusplus is the best”, pattern = Read more →
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2 postsGiven an Array consisting of N integers, Count the number of contiguous subarrays where each element in the subarray appears 2 or more times. Examples : Input : n = 3 arr Read more →