Software Engineer Coding Interview Questions

Review this list of 323 Coding Software Engineer interview questions and answers verified by hiring managers and candidates.

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Implement a function to justify a list of words within a given width.
2 years ago2 answers
Find the closest palindrome of a given number.
10 months ago2 answers
Design a task scheduler in Python.
a month ago13 answers
Binary Tree Zigzag Level Order Traversal
3 months ago
Write a function to return all prime numbers up to a given number n.
+12 years ago14 answers
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Given a list of car rental requests with start and end times, assign cars to rentals such that the total number of cars used is minimized.
a year ago2 answers
Generate Parentheses Has video answer
+36 months ago19 answers
Detect cycle in graph
+16 months ago3 answers
Given an array with objects colored red, white, or blue, sort them so those of the same color are adjacent. Use integers 0, 1, 2 to represent RWB respectively.
2 years ago2 answers
Find the maximum product of any two integers in an array.
2 years ago11 answers
Letter Combinations of a Phone Number
9 months ago
Build a hit counter that tracks the number of hits in the last 5 minutes, supporting multiple keys (e.g., “a”, “b”). Then, use this counter to implement a simple rate limiter.
a year ago3 answers
Implement inorder traversal for an N-ary tree.
2 years ago1 answer
Find the maximum subarray sum.
+15a month ago38 answers
Given the head of two singly linked lists, write a function to return the point where they intersect (if any).
+32 years ago
Build a Calculator
+3a year ago6 answers
Koko eating bananas.
3 months ago2 answers
Build a TTL cache.
a month ago1 answer
Delete Node in a Binary Search Tree (BST).
a year ago4 answers
Implement an iterator class that supports next, hasNext, getState, and setState, then extend it to treat a list of iterators as one continuous iterator with a global index.
4 months ago

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Software Engineer Coding Interview Questions

Implement a function to justify a list of words within a given width.

Find the closest palindrome of a given number.

Design a task scheduler in Python.

Binary Tree Zigzag Level Order Traversal

Write a function to return all prime numbers up to a given number n.

Given a list of car rental requests with start and end times, assign cars to rentals such that the total number of cars used is minimized.

Generate Parentheses Has video answer

Detect cycle in graph

Given an array with objects colored red, white, or blue, sort them so those of the same color are adjacent. Use integers 0, 1, 2 to represent RWB respectively.

Find the maximum product of any two integers in an array.

Letter Combinations of a Phone Number

Build a hit counter that tracks the number of hits in the last 5 minutes, supporting multiple keys (e.g., “a”, “b”). Then, use this counter to implement a simple rate limiter.

Implement inorder traversal for an N-ary tree.

Find the maximum subarray sum.

Given the head of two singly linked lists, write a function to return the point where they intersect (if any).

Build a Calculator

Koko eating bananas.

Build a TTL cache.

Delete Node in a Binary Search Tree (BST).

Implement an iterator class that supports next, hasNext, getState, and setState, then extend it to treat a list of iterators as one continuous iterator with a global index.

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