Given arows x colsmatrixmat, wheremat[i][j]is either0or1, returnthe number of special positions inmat. A position(i,j)is called special ifmat[i][j] == 1and all other elements in rowiand columnjare0(rows and columns are 0-indexed). Example 1: Input: mat = [[1,0,0], [0,0...
You are given an arraynumsof non-negative integers.numsis considered special if there exists a numberxsuch that there are exactlyxnumbers innumsthat are greater than or equal tox. Notice thatxdoes not have to be an element innums. Returnxif the array is special, otherwise, return-1. It ...
leetcode 1582. Special Positions in a Binary Matrix(python) 描述Given a rows x cols matrix mat, where mat[i][j] is either 0 or 1, return the number of special positions in mat. A position (i,j) is called special if mat[i][j] == 1 and all other elements in row i......
1608. Special Array With X Elements Greater Than or Equal X 解题方法 设置x从0开始遍历到len(nums),每次循环内再遍历nums数组,统计有多少个数大于等于x记为count,如果统计的结果大于x就break此次循环。遍历数组的循环结束后判断x是否等于count,如果是就返回x,不是的话就返回-1。 时间复杂度:O(n*n) 空间...
Given an m x n binary matrix mat, return the number of special positions in mat. A position (i, j) is called special if mat[i][j] == 1 and all other elements in row i and column j are 0 (rows and columns are 0-indexed). ...