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Array

Article

Binary Search in a Rotated Array

Binary search is a common algorithm that you need to know for your coding interview. But what if the array isn't just in regular sorted order?
Median of Arrays: Coding Interview Question

Article

Coding Interview Question: Median of Arrays

Coding Interview Question: Find the median of two sorted arrays. Click for the solution.
0-1 Knapsack: Coding Interview Question

Article

Coding Interview Question: 0-1 Knapsack

Coding Interview Question: Given a list of items, find the maximum value you can generate from the items. Click for the solution.
Matrix Product: Coding Interview Question

Article

Coding Interview Question: Matrix Product

Coding Interview Question: Given a matrix, find the path from top left to bottom right with the greatest product. Click for the solution.
Find Duplicates: Coding Interview Question

Article

Coding Interview Question: Find Duplicates

Coding Interview Question: Given an array of integers where each value 1 <= x <= len(array), write a function that finds all the duplicates in the array. Click for the solution.
Consecutive Array: Coding Interview Question

Article

Coding Interview Question: Consecutive Array

Coding Interview Question: Given an unsorted array, find the length of the longest sequence of consecutive numbers in the array. Click for the solution.
Zero Matrix: Coding Interview Question

Article

Coding Interview Question: Zero Matrix

Coding Interview Question: Given a matrix, update it so that if any cell is true, all the cells in that row and column are true. Click for the solution.
Square Submatrix: Coding Interview Question

Article

Coding Interview Question: Square Submatrix

Coding Interview Question: Given a 2D array of 1s and 0s, find the largest square subarray of all 1s. Click for the solution.
Merge K Arrays: Coding Interview Question

Article

Coding Interview Question: Merge K Arrays

Coding Interview Question: Given k sorted arrays, merge them into a single sorted array. Click for the solution.
Matrix Search: Coding Interview Question

Article

Coding Interview Question: Matrix Search

Coding Interview Question: Given an sorted n x m array, write a function to determine whether the array contains an element x. Click for the solution.
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