Jun 04, 2026 • Leetcode
Find Two Non-overlapping Sub-arrays Each With Target Sum
You are given an array of integers arr and an integer target.
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Jun 03, 2026 • Leetcode
Longest Arithmetic Subsequence
Given an array nums of integers, return the length of the longest arithmetic subsequence in nums.
Read more →May 20, 2026 • Leetcode
Stone Game
Alice and Bob play a game with piles of stones. There are an even number of piles arranged in a row, and each pile has a positive integer number of stones piles
Read more →May 15, 2026 • Leetcode
Fraction Addition and Subtraction
Given a string expression representing an expression of fraction addition and subtraction, return the calculation result in string format.
Read more →May 14, 2026 • Leetcode
Non-decreasing Subsequences
Given an integer array nums, return all the different possible non-decreasing subsequences of the given array with at least two elements
Read more →May 13, 2026 • Leetcode
Maximum Length of Pair Chain
You are given an array of n pairs pairs where pairs[i] = [lefti, righti] and lefti < righti.
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