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Grokking the Coding Interview Patterns

Problem: Contains Duplicate

easy
15 min
Explore how to identify duplicates in an array of integers by implementing an efficient algorithm. This lesson helps you understand problem constraints and develop a solution that runs in linear time and uses additional space, preparing you for coding interview challenges.

Statement

For a given array of integers, nums, return TRUE if it contains duplicates. Otherwise, return FALSE.

Constraints:

  • 1≤1 \leq nums.length ≤103\leq 10^3

  • −109≤-10^9 \leq nums[i] ≤109\leq 10^9

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Tap here to switch tabs
Problem
Submissions
Home
Courses
Grokking the Coding Interview Patterns

Problem: Contains Duplicate

easy
15 min
Explore how to identify duplicates in an array of integers by implementing an efficient algorithm. This lesson helps you understand problem constraints and develop a solution that runs in linear time and uses additional space, preparing you for coding interview challenges.

Statement

For a given array of integers, nums, return TRUE if it contains duplicates. Otherwise, return FALSE.

Constraints:

  • 1≤1 \leq nums.length ≤103\leq 10^3

  • −109≤-10^9 \leq nums[i] ≤109\leq 10^9

Similar Problems
Trapping Rain Water
Shortest Bridge
Number of Connected Components in an Undirected Graph
Median of Two Sorted Arrays
Pacific Atlantic Water Flow
Maximum Subarray
Two Sum
Find Minimum in Rotated Sorted Array
Non-overlapping Intervals
Meeting Rooms
Unlock AI-Powered LearningUpgrade to smarter learning with instant explanations of Ask Agent, Personalized Interview Prep, Real-World Projects, 3 AI Mock Interviews per month, and Personalized Paths