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https://leetcode.com/problems/number-of-subsequences-that-satisfy-the-given-sum-condition/ Number of Subsequences That Satisfy the Given Sum Condition - LeetCode Can you solve this real interview question? Number of Subsequences That Satisfy the Given Sum Condition - You are given an array of integers nums and an integer target. Return the number of non-empty subsequences of nums such that the s..

https://leetcode.com/problems/maximum-number-of-vowels-in-a-substring-of-given-length/ Maximum Number of Vowels in a Substring of Given Length - LeetCode Can you solve this real interview question? Maximum Number of Vowels in a Substring of Given Length - Given a string s and an integer k, return the maximum number of vowel letters in any substring of s with length k. Vowel letters in English ar..

투 포인터 말 그대로 두개의 포인터를 사용하는 알고리즘이다. (left, right), (start, end)처럼 주로 이름을 붙인다. 슬라이딩 윈도우 투 포인터와 비슷하나, 두 포인터간의 간격이 일정하다.