.Zzumbong

난이도 [ 👿 ] Hard 문제 설명 There is a 1-based binary matrix where 0 represents land and 1 represents water. You are given integers row and col representing the number of rows and columns in the matrix, respectively. Initially on day 0, the entire matrix is land. However, each day a new cell becomes flooded with water. You are given a 1-based 2D array cells, where cells[i] = [ri, ci] represents that o..

난이도 [ 😊 ] Easy 문제 설명 You are given an array apple of size n and an array capacity of size m. There are n packs where the ith pack contains apple[i] apples. There are m boxes as well, and the ith box has a capacity of capacity[i] apples. Return the minimum number of boxes you need to select to redistribute these n packs of apples into boxes. Note that, apples from the same pack can be distribute..

난이도 [ 🤔 ] Medium 문제 설명 You are stacking blocks to form a pyramid. Each block has a color, which is represented by a single letter. Each row of blocks contains one less block than the row beneath it and is centered on top. To make the pyramid aesthetically pleasing, there are only specific triangular patterns that are allowed. A triangular pattern consists of a single block stacked on top of t..

난이도 [ 😊 ] Easy문제 설명Given 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.여기서 non-increasing order는 내림차순(값이 같거나 작아짐)을 의미함.그리고 이게 row-wise(가로)와 column-wise 모두에 적용된다는 것이 핵심.입출력 예Example 1:Input: grid = [[4,3,2,-1],[3,2,1,-1],[1,1,-1,-2],[-1,-1,-2,-3]]Output: 8Explanation: There are 8 negatives number in the mat..