## Solved! Leetcode 228. Summary Ranges

source: https://leetcode.com/problems/summary-ranges/description/ Summary Ranges Table of ContentsSummary RangesDescriptionExample 1:Example 2:Constraints:Solution Description You are given a sorted unique integer array nums. A range [a,b] is the set of all integers from a to b (inclusive). Return the smallest sorted list of ranges that cover all the numbers in the array exactly. That is, each element of ...

## Solved! Leetcode 744. Find Smallest Letter Greater Than Target

source: https://leetcode.com/problems/find-smallest-letter-greater-than-target/description/ Find Smallest Letter Greater Than Target Table of ContentsFind Smallest Letter Greater Than TargetDescriptionExample 1:Example 2:Example 3:Constraints:Solution Description You are given an array of characters letters that is sorted in non-decreasing order, and a character target. There are at least two different characters in letters. Return the smallest character in letters that is ...

## Solved! Leetcode 1351. Count Negative Numbers in a Sorted Matrix

source: https://leetcode.com/problems/count-negative-numbers-in-a-sorted-matrix/description/ Count Negative Numbers in a Sorted Matrix Table of ContentsCount Negative Numbers in a Sorted MatrixDescriptionExample 1:Example 2:Constraints:SolutionFollow up Description Given a m x n matrix grid which is sorted in non-increasing order both row-wise and column-wise, return the number of negative numbers in grid. Example 1: Input: grid = [[4,3,2,-1],[3,2,1,-1],[1,1,-1,-2],[-1,-1,-2,-3]]Output: 8Explanation: There ...

## Solved! Leetcode 1232. Check If It Is a Straight Line

source: https://leetcode.com/problems/check-if-it-is-a-straight-line/description/ Check If It Is a Straight Line Table of ContentsCheck If It Is a Straight LineDescriptionExample 1:Example 2:Constraints:Solution Description You are given an array coordinates, coordinates[i] = [x, y], where [x, y] represents the coordinate of a point. Check if these points make a straight line in the XY plane. Example 1: Input: ...

## Solved! Leetcode 1091. Shortest Path in Binary Matrix

source: https://leetcode.com/problems/shortest-path-in-binary-matrix/description/ Shortest Path in Binary Matrix Table of ContentsShortest Path in Binary MatrixDescriptionExample 1:Example 2:Example 3:Constraints:Solution Description Given an n x n binary matrix grid, return the length of the shortest clear path in the matrix. If there is no clear path, return -1. A clear path in a binary matrix is a path ...

## Solved! Leetcode 2101. Detonate the Maximum Bombs

Table of ContentsDetonate the Maximum BombsExample 1:Example 2:Example 3:Constraints:Solution source: https://leetcode.com/problems/detonate-the-maximum-bombs/ Detonate the Maximum Bombs You are given a list of bombs. The range of a bomb is defined as the area where its effect can be felt. This area is in the shape of a circle with the center as the location of the ...

## Solved! Leetcode 785. Is Graph Bipartite?

source: https://leetcode.com/problems/is-graph-bipartite/description/ Is Graph Bipartite? There is an undirected graph with n nodes, where each node is numbered between 0 and n – 1. You are given a 2D array graph, where graph[u] is an array of nodes that node u is adjacent to. More formally, for each v in graph[u], there is an undirected ...

## Solved! Leetcode 703. Kth Largest Element in a Stream

source: https://leetcode.com/problems/kth-largest-element-in-a-stream/description/ Kth Largest Element in a Stream Design a class to find the kth largest element in a stream. Note that it is the kth largest element in the sorted order, not the kth distinct element. Implement KthLargest class: KthLargest(int k, int[] nums) Initializes the object with the integer k and the stream of ...

## Solved! Leetcode 253. Meeting Rooms II

source: https://leetcode.com/problems/meeting-rooms-ii/description/ Meeting Rooms II Given an array of meeting time intervals intervals where intervals[i] = [starti, endi], return the minimum number of conference rooms required. Example 1: Input: intervals = [[0,30],[5,10],[15,20]] Output: 2 Example 2: Input: intervals = [[7,10],[2,4]] Output: 1 Constraints: 1 <= intervals.length <= 104 0 <= starti < endi <= 106 ...

## Solved! Leetcode 347. Top K Frequent Elements

source: https://leetcode.com/problems/top-k-frequent-elements/description/ Top K Frequent Elements Given an integer array nums and an integer k, return the k most frequent elements. You may return the answer in any order. Example 1: Input: nums = [1,1,1,2,2,3], k = 2 Output: [1,2] Example 2: Input: nums = [1], k = 1 Output: [1] Constraints: 1 <= nums.length ...