## Ezzat and Grid solution codeforces

Ezzat and Grid solution codeforces For Solution Click Here! Moamen was drawing a grid of nn rows and 109109 columns containing only digits 00 and 11. Ezzat noticed what Moamen was drawing and became interested in the minimum number of rows one needs to remove to make the grid beautiful. A grid is beautiful if and only if for every two consecutive … Read more

## Moamen and XOR solution codeforces

Moamen and XOR solution codeforces For Solution Click Here! Moamen and Ezzat are playing a game. They create an array aa of nn non-negative integers where every element is less than 2k2k. Moamen wins if a1&a2&a3&…&an≥a1⊕a2⊕a3⊕…⊕ana1&a2&a3&…&an≥a1⊕a2⊕a3⊕…⊕an. Here && denotes the bitwise AND operation, and ⊕⊕ denotes the bitwise XOR operation. Please calculate the number of winning for Moamen arrays aa. As the result may be very large, print … Read more

## Moamen and k-subarrays solution codeforces

Moamen and k-subarrays solution codeforces For Solution Click Here! Moamen has an array of nn distinct integers. He wants to sort that array in non-decreasing order by doing the following operations in order exactly once: Split the array into exactly kk non-empty subarrays such that each element belongs to exactly one subarray. Reorder these subarrays arbitrary. Merge the subarrays in their … Read more

## Ezzat and Two Subsequences solution codeforces

Ezzat and Two Subsequences For Solution Click Here! Ezzat has an array of nn integers (maybe negative). He wants to split it into two non-empty subsequences aa and bb, such that every element from the array belongs to exactly one subsequence, and the value of f(a)+f(b)f(a)+f(b) is the maximum possible value, where f(x)f(x) is the average of the subsequence xx. A sequence xx is a subsequence of a sequence yy if xx can be … Read more

## Find the Longest Valid Obstacle Course at Each Position solution leetcode

Find the Longest Valid Obstacle Course at Each Position solution leetcode For Solution Click Here! You want to build some obstacle courses. You are given a 0-indexed integer array obstacles of length n, where obstacles[i] describes the height of the ith obstacle. For every index i between 0 and n – 1 (inclusive), find the length of the longest obstacle course in obstacles such that: You choose any number of obstacles between 0 and i inclusive. You must … Read more

## Minimum Number of Swaps to Make the String Balanced solution leetcode

Minimum Number of Swaps to Make the String Balanced solution leetcode For Solution Click Here! You are given a 0-indexed string s of even length n. The string consists of exactly n / 2 opening brackets ‘[‘ and n / 2 closing brackets ‘]’. A string is called balanced if and only if: It is the empty string, or It can be written as AB, where both A and B are balanced strings, or It can be written as [C], … Read more

## Remove Stones to Minimize the Total solution leetcode

Remove Stones to Minimize the Total solution leetcode For Solution Click Here! You are given a 0-indexed integer array piles, where piles[i] represents the number of stones in the ith pile, and an integer k. You should apply the following operation exactly k times: Choose any piles[i] and remove floor(piles[i] / 2) stones from it. Notice that you can apply the operation on the same pile more than once. Return the minimum possible total number of stones … Read more

## Check If String Is a Prefix of Array solution leetcode

Check If String Is a Prefix of Array solution leetcode For Solution Click Here! Given a string s and an array of strings words, determine whether s is a prefix string of words. A string s is a prefix string of words if s can be made by concatenating the first k strings in words for some positive k no larger than words.length. Return true if s is a prefix string of words, or false otherwise.   Example 1: Input: s = “iloveleetcode”, words = [“i”,”love”,”leetcode”,”apples”] Output: true … Read more

## Maximum Product of the Length of Two Palindromic Substrings solution leetcode

Maximum Product of the Length of Two Palindromic Substrings solution leetcode For Solution Click Here!   User Accepted:0 User Tried:0 Total Accepted:0 Total Submissions:0 Difficulty:Hard You are given a 0-indexed string s and are tasked with finding two non-intersecting palindromic substrings of odd length such that the product of their lengths is maximized. More formally, you want to choose four integers i, j, k, l such that 0 <= … Read more

## Minimum Total Space Wasted With K Resizing Operations solution leetcode

Minimum Total Space Wasted With K Resizing Operations solution leetcode For Solution Click Here! You are currently designing a dynamic array. You are given a 0-indexed integer array nums, where nums[i] is the number of elements that will be in the array at time i. In addition, you are given an integer k, the maximum number of times you can resize the array (to any size). The size … Read more