Merge Sort Interview Questions

Master 12 merge sort problems frequently asked in technical interviews. These questions test your understanding of merge sortconcepts and are essential for coding interview success.

Total Problems

Easy

Medium

Hard

Merge k Sorted Lists

Asked at Meta

Linked List Divide and Conquer Heap (Priority Queue)Merge Sort Tournament Sort

Rank

#948MediumFrequency: 46.7%

Sort an Array

Asked at Infosys

Array Divide and Conquer Sorting Heap (Priority Queue)Merge Sort Bucket Sort Radix Sort Counting Sort

Rank

#148MediumFrequency: 46%

Sort List

Asked at Amazon

Linked List Two Pointers Divide and Conquer Sorting Merge Sort

Rank

#493HardFrequency: 44.6%

Reverse Pairs

Asked at Amazon

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set Treap

Rank

#315HardFrequency: 33.1%

Count of Smaller Numbers After Self

Asked at Google

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set Treap

Rank

#327HardFrequency: 31.3%

Count of Range Sum

Asked at Infosys

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set Treap

Rank

#2658HardFrequency: 20%

Count the Number of K-Big Indices

Asked at Amazon

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set

Rank

#4074MediumFrequency: 19.5%

Count Subarrays With Majority Element I

Asked at Microsoft

Array Hash Table Divide and Conquer Segment Tree Merge Sort Counting Prefix Sum

Rank

#2513HardFrequency: 18%

Number of Pairs Satisfying Inequality

Asked at Google

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set

Rank

#510MediumFrequency: 16.4%

Count Subarrays With More Ones Than Zeros

Asked at Google

Array Hash Table Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set

#10

Rank

#2280HardFrequency: 10.5%

Count Good Triplets in an Array

Asked at Google

Array Binary Search Divide and Conquer Binary Indexed Tree Segment Tree Merge Sort Ordered Set

#11

Rank

#4075HardFrequency: 7.3%

Count Subarrays With Majority Element II

Asked at Microsoft

Array Hash Table Divide and Conquer Segment Tree Merge Sort Prefix Sum

#12

Rank

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Merge Sort Interview Questions

Related Topics

Merge k Sorted Lists

Sort an Array

Sort List

Reverse Pairs

Count of Smaller Numbers After Self

Count of Range Sum

Count the Number of K-Big Indices

Count Subarrays With Majority Element I

Number of Pairs Satisfying Inequality

Count Subarrays With More Ones Than Zeros

Count Good Triplets in an Array

Count Subarrays With Majority Element II

Master Merge Sort in Real Interviews

Merge Sort Interview Questions

Related Topics

Merge k Sorted Lists

Sort an Array

Sort List

Reverse Pairs

Count of Smaller Numbers After Self

Count of Range Sum

Count the Number of K-Big Indices

Count Subarrays With Majority Element I

Number of Pairs Satisfying Inequality

Count Subarrays With More Ones Than Zeros

Count Good Triplets in an Array

Count Subarrays With Majority Element II

Master Merge Sort in Real Interviews