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Reducing Dishes - LeetCode Can you solve this real interview question? Reducing Dishes - A chef has collected data on the satisfaction level of his n dishes. Chef can cook any dish in 1 unit of time. Like-time coefficient of a dish is defined as the time taken to cook that dish incl leetcode.com Above is the link to the problem Problem A chef has collected data on the "satisfaction" level of his..

Minimum Cost For Tickets - LeetCode Can you solve this real interview question? Minimum Cost For Tickets - You have planned some train traveling one year in advance. The days of the year in which you will travel are given as an integer array days. Each day is an integer from 1 to 365. Train leetcode.com Above is the link to the problem. Problem You have planned some train traveling one year in a..

Minimum Path Sum - LeetCode Can you solve this real interview question? Minimum Path Sum - Given a m x n grid filled with non-negative numbers, find a path from top left to bottom right, which minimizes the sum of all numbers along its path. Note: You can only move either down or rig leetcode.com Above is the link to the problem. Problem Given a m x n grid filled with non-negative numbers, find ..

Number of Zero-Filled Subarrays - LeetCode Can you solve this real interview question? Number of Zero-Filled Subarrays - Given an integer array nums, return the number of subarrays filled with 0. A subarray is a contiguous non-empty sequence of elements within an array. Example 1: Input: nums = leetcode.com Above is the link to the problem. Problem Given an integer array nums, return the number ..

어떤 연립방정식이 다음과 같이 주어졌을 때,이를 행렬의 곱 Ax = b 형태로 다음과 같이 표현할 수 있다. 위 행렬을 Gauss Elimination (가우스 소거법)을 이용하여,A를 Upper triangular matrix인 row echelon form 형태로 정리하면 연립방정식의 해를 얻을 수 있다. 그 과정은 다음과 같다.1. Pivoting : 기준이 되는 각 행의 첫 요소가 가장 큰 절댓값을 가지도록 행을 변경하는 과정기준 행인 1행의 첫 요소가 가장 큰 절댓값을 갖도록 행을 바꾸어준다. 2. Forward Elimination : Pivot이 설정된 기준 행과 열에 대하여 기준 행을 제외한 기준 열의 요소를 0으로 정리한다.위 1, 2 과정을 Upper Triangular matrix (..

Can Place Flowers - LeetCode Can you solve this real interview question? Can Place Flowers - You have a long flowerbed in which some of the plots are planted, and some are not. However, flowers cannot be planted in adjacent plots. Given an integer array flowerbed containing 0's and 1' leetcode.com Above is the link to the problem. Problem You have a long flowerbed in which some of the plots are ..

Minimum Time to Complete Trips - LeetCode Can you solve this real interview question? Minimum Time to Complete Trips - You are given an array time where time[i] denotes the time taken by the ith bus to complete one trip. Each bus can make multiple trips successively; that is, the next trip can sta leetcode.com Above is the link to the problem. Problem You are given an array "time" where "time[i]..

Happy Number - LeetCode Can you solve this real interview question? Happy Number - Write an algorithm to determine if a number n is happy. A happy number is a number defined by the following process: * Starting with any positive integer, replace the number by the sum of the squar leetcode.com Above is the link to the problem. Problem A happy number is a number defined by the following process 1...

Find the Index of the First Occurrence in a String - LeetCode Can you solve this real interview question? Find the Index of the First Occurrence in a String - Given two strings needle and haystack, return the index of the first occurrence of needle in haystack, or -1 if needle is not part of haystack. Example 1: I leetcode.com Above is the link to the problem. Problem Given two strings variables..