Coding Interview Questions

Review this list of 493 Coding interview questions and answers verified by hiring managers and candidates.

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Find peak element in an array
a year ago2 answers
Given a list of items with different sizes, write an algorithm to pack these items into the minimum number of batches without exceeding the capacity of each batch.
2 years ago1 answer
Write a function to balance parentheses in a given string by removing the fewest characters possible. Ensure that each opening parenthesis has a corresponding closing parenthesis and each pair is properly nested.
2 years ago5 answers
Detect circular dependencies between fields in the CSV data.
5 months ago
Product of Array Except Self Has video answer
+32 years ago74 answers
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Accounts Merge
8 months ago
Print the top view of nodes in a binary tree.
a year ago6 answers
Most Common Words
5 months ago37 answers
Cycle Detection in Package Manager.
9 months ago2 answers
Explain malloc, calloc, and reelloc.
a year ago1 answer
Lexicographic Grid Travel.
a year ago2 answers
Given an array of integers and a number N, find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N.
9 months ago3 answers
Given a binary tree, check if each node is the average of all descendants
a year ago2 answers
Given a list with response time for each server, calculate how long time it will take to process n requests.
a year ago1 answer
Given an m x n grid of characters board and a string word, return true if word exists in the grid.
3 months ago
Find the Duplicates
2 years ago40 answers
Most Recent Transaction
a year ago31 answers
Climbing Stairs
+23 months ago20 answers
Find Top Customer by Year
2 years ago18 answers
E-commerce (1 of 5) Has video answer
3 years ago20 answers

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Coding Interview Questions

Find peak element in an array

Given a list of items with different sizes, write an algorithm to pack these items into the minimum number of batches without exceeding the capacity of each batch.

Write a function to balance parentheses in a given string by removing the fewest characters possible. Ensure that each opening parenthesis has a corresponding closing parenthesis and each pair is properly nested.

Detect circular dependencies between fields in the CSV data.

Product of Array Except Self Has video answer

Accounts Merge

Print the top view of nodes in a binary tree.

Most Common Words

Cycle Detection in Package Manager.

Explain malloc, calloc, and reelloc.

Lexicographic Grid Travel.

Given an array of integers and a number N, find the length of the longest contiguous subarray such that the difference between any two elements in the subarray is less than N.

Given a binary tree, check if each node is the average of all descendants

Given a list with response time for each server, calculate how long time it will take to process n requests.

Given an m x n grid of characters board and a string word, return true if word exists in the grid.

Find the Duplicates

Most Recent Transaction

Climbing Stairs

Find Top Customer by Year

E-commerce (1 of 5) Has video answer

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