Coding Interview Questions

Review this list of 490 Coding interview questions and answers verified by hiring managers and candidates.

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Overstretched Employees
a year ago4 answers
Print the maximum positive sequence in a given array.
5 years ago5 answers
Given the row and column, return the value at that position in Pascal's triangle.
a year ago1 answer
Given a list of conversion items between symbols, write an algorithm to return the conversion ratio for each pair of symbols.
4 years ago2 answers
Design a data structure that supports insert, delete, search, and retrieve in constant time.
3 years ago1 answer
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Find the palindromes.
2 years ago2 answers
Given a DAG of dependencies, how do you order execution correctly?
8 months ago
Implement a SQL parser that converts raw SQL strings into programming objects or ORM primitives.
8 months ago
Implement BFS traversal.
3 years ago
Design a queue using static memory allocation.
6 months ago1 answer
Given a list of transactions between friends, return the minimum number of transactions required to settle the debts. For e.g. Alice gave $5 to Bob and Bob gave $5 to Bill. Answer will be 1.
2 years ago
Design an iterator.
8 months ago
Custom Sort String
3 months ago1 answer
Top k frequent elements
+12 years ago1 answer
Calculate the result of a mathematical expression written as a string.
3 years ago
Given a list of integers, return 1 if the integer is a power of 2 and 0 if it is not.
5 years ago3 answers
How would you rebuild one of your projects in a lower-level language to make it faster?
a year ago
Implement wildcard pattern matching for a string (s) and a pattern (p) with '?' and '*' in a way that covers the entire input string.
4 years ago3 answers
Find the shortest distance between two points.
2 months ago
How would you perform a lookup in SQL?
5 years ago1 answer

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Coding Interview Questions

Overstretched Employees

Print the maximum positive sequence in a given array.

Given the row and column, return the value at that position in Pascal's triangle.

Given a list of conversion items between symbols, write an algorithm to return the conversion ratio for each pair of symbols.

Design a data structure that supports insert, delete, search, and retrieve in constant time.

Find the palindromes.

Given a DAG of dependencies, how do you order execution correctly?

Implement a SQL parser that converts raw SQL strings into programming objects or ORM primitives.

Implement BFS traversal.

Design a queue using static memory allocation.

Given a list of transactions between friends, return the minimum number of transactions required to settle the debts. For e.g. Alice gave $5 to Bob and Bob gave $5 to Bill. Answer will be 1.

Design an iterator.

Custom Sort String

Top k frequent elements

Calculate the result of a mathematical expression written as a string.

Given a list of integers, return 1 if the integer is a power of 2 and 0 if it is not.

How would you rebuild one of your projects in a lower-level language to make it faster?

Implement wildcard pattern matching for a string (s) and a pattern (p) with '?' and '*' in a way that covers the entire input string.

Find the shortest distance between two points.

How would you perform a lookup in SQL?

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