148. Find Duplicate

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Example 1:

Input: nums = [1, 3, 4, 2, 2]

Output: 2

Explanation: The number 2 appears twice in the array.

Example 2:

Input: nums = [3, 1, 3, 4, 2]

Output: 3

Explanation: The number 3 appears twice in the array.

Example 3:

Input: nums = [3, 3, 3, 3, 3]

Output: 3

Explanation: The number 3 is the only duplicate present in the array.

Constraints:

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Time Complexity

N/A

Space Complexity

N/A

148. Find Duplicate

Understand Before Coding

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Example 1:

Example 2:

Example 3:

Constraints:

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148. Find Duplicate

Understand Before Coding

Visualize This Problem

Draw Your Approach

Example 1:

Example 2:

Example 3:

Constraints:

Learn

Topics

Companies

Hint

Use Cases