# LeetCode 42. Trapping Rain Water

Description https://leetcode.com/problems/trapping-rain-water/description/ Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water…

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Description https://leetcode.com/problems/trapping-rain-water/description/ Given n non-negative integers representing an elevation map where the width of each bar is 1, compute how much water…

Description https://leetcode.com/problems/min-stack/description/ Design a stack that supports push, pop, top, and retrieving the minimum element in constant time. push(x) —…

Description https://leetcode.com/problems/valid-parentheses/ Given a string containing just the characters ‘(‘, ‘)’, ‘{‘, ‘}’, ‘[‘ and ‘]’, determine if the input…

Description https://leetcode.com/problems/median-of-two-sorted-arrays/ There are two sorted arrays nums1 and nums2 of size m and n respectively. Find the median of…