<ul data-eligibleForWebStory="false">Leetcode problem 1751 involves maximizing the sum of values obtained by attending events.Events are represented by their start day, end day, and value. A maximum of k events can be attended.The approach involves sorting events, using recursion with memoization to make decisions for each event, and binary search for efficiency.The time complexity is O(n log n + n * k), while the space complexity is O(n * k).