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Nec LeetCode Interview Questions

Practice 29 real coding problems frequently asked in Nec technical interviews. Master these questions to ace your next Nec software engineering interview.

9 Easy
15 Medium
5 Hard

Top Topics at Nec

ArrayHash TableStringTwo PointersDynamic Programming

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Nec Interview Problems

ProblemDifficultyDiffFrequencyTopicsAction
Word Pattern II
100%
MediumM
100%
Hash TableString+1
Solve→
Logger Rate Limiter
97%
EasyE
97%
Hash TableDesign+1
Solve→
Reveal Cards In Increasing Order
93%
MediumM
93%
ArrayQueue+2
Solve→
Check if One String Swap Can Make Strings Equal
90%
EasyE
90%
Hash TableString+1
Solve→
Best Time to Buy and Sell Stock
83%
EasyE
83%
ArrayDynamic Programming
Solve→
Palindromic Substrings
79%
MediumM
79%
Two PointersString+1
Solve→
Digit Operations to Make Two Integers Equal
78%
MediumM
78%
MathGraph+3
Solve→
Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit
77%
MediumM
77%
ArrayQueue+4
Solve→
Word Ladder
75%
HardH
75%
Hash TableString+1
Solve→
K-diff Pairs in an Array
72%
MediumM
72%
ArrayHash Table+3
Solve→
First Missing Positive
71%
HardH
71%
ArrayHash Table
Solve→
Subarray Sum Equals K
70%
MediumM
70%
ArrayHash Table+1
Solve→
Valid Palindrome
69%
EasyE
69%
Two PointersString
Solve→
Permutation in String
57%
MediumM
57%
Hash TableTwo Pointers+2
Solve→
Recyclable and Low Fat Products
56%
EasyE
56%
Database
Solve→
Maximum Profit in Job Scheduling
54%
HardH
54%
ArrayBinary Search+2
Solve→
Can Place Flowers
53%
EasyE
53%
ArrayGreedy
Solve→
Count Unhappy Friends
51%
MediumM
51%
ArraySimulation
Solve→
Expression Add Operators
46%
HardH
46%
MathString+1
Solve→
Move Pieces to Obtain a String
44%
MediumM
44%
Two PointersString
Solve→
Identify the Largest Outlier in an Array
42%
MediumM
42%
ArrayHash Table+2
Solve→
Range Sum of BST
36%
EasyE
36%
TreeDepth-First Search+2
Solve→
Kth Smallest Element in a BST
35%
MediumM
35%
TreeDepth-First Search+2
Solve→
Plus One
30%
EasyE
30%
ArrayMath
Solve→
Palindrome Number
28%
EasyE
28%
Math
Solve→

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Word Break
25%
MediumM
25%
ArrayHash Table+4
Solve→
Valid Palindrome III
23%
HardH
23%
StringDynamic Programming
Solve→
Lowest Common Ancestor of a Binary Search Tree
21%
MediumM
21%
TreeDepth-First Search+2
Solve→
Remove Duplicates from Sorted Array II
20%
MediumM
20%
ArrayTwo Pointers
Solve→

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Frequently Asked Questions

What LeetCode problems does Nec ask in interviews?

Nec commonly asks 29 coding problems in technical interviews, including Word Pattern II, Logger Rate Limiter, Reveal Cards In Increasing Order. The difficulty breakdown is 9 Easy, 15 Medium, and 5 Hard problems.

How should I prepare for a Nec coding interview?

Focus on the most frequently asked problems first, especially those with high frequency scores. Nec interviews typically emphasize Array and Hash Table. Practice explaining your thought process while coding.

What is the difficulty level of Nec coding interviews?

Based on our data, Nec interviews include 9 Easy (31%), 15 Medium (52%), and 5 Hard (17%) problems.

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