You are given a binary string s and an integer k. A binary string satisfies the k-constraint if either of the following conditions holds:The number of 0’s in the string is at most k.The number of 1’s

Given a string s and an integer k, return the total number of substrings of s where at least one character appears at least k times. Example 1:Input: s = “abacb”, k = 2Output: 4 Explanation:

You are given a 0-indexed array nums and a non-negative integer k. In one operation, you can do the following:Choose an index i that hasn’t been chosen before from the range [0, nums.length - 1].Repla

You are given an integer array nums and an integer k. The frequency of an element x is the number of times it occurs in an array. An array is called good if the frequency of each element in this array

You are given a digit string s that consists of digits from 0 to 9. A string is called semi-repetitive if there is at most one adjacent pair of the same digit. For example, “0010”, “002020”, “0123”, “

You are given an array nums consisting of positive integers. Starting with score = 0, apply the following algorithm: Choose the smallest integer of the array that is not marked. If there is a tie

Given a string s, return the maximum number of occurrences of any substring under the following rules:The number of unique characters in the substring must be less than or equal to maxLetters.The subs

You are given a 2D integer array points, where points[i] = [xi, yi]. You are also given an integer w. Your task is to cover all the given points with rectangles. Each rectangle has its lower end

Given an array of integers arr, return the number of subarrays with an odd sum. Since the answer can be very large, return it modulo 109 + 7. Example 1:Input: arr = [1,3,5]Output: 4Explanation: A

An array is considered special if every pair of its adjacent elements contains two numbers with different parity. You are given an array of integer nums and a 2D integer matrix queries, where for quer