.Zzumbong

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..