In this post, we discuss string related problem and its solution in GO language:
This problem aims to check the number of unique characters with the substring of s and the number of occurrences of each unique character.
To solve this problem sliding window approach is used. Usually, the sliding window approach has two pointers called left and right. We keep moving these pointers based on the conditions. Below are the brief steps to solve this problem:
- First, find the substring with the matching unique letters and occurrences of each unique letter.
- After finding this substring move the left pointer to reduce the size of the substring.
- Keep moving the right pointer to find there is any other smallest substring.
In GO, make([] int , size) statement allocates an integer array with the specified size.
Below is the GO solution:
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