Practice Real Company Assessment Patterns • Latest 2025–2026 Mock Tests

Programming Exercises

Check if all elements in a list are unique.

Medium

Problem Statement

Check if all elements in a list are unique.

Sample Input

[1, 2, 3, 4]

Sample Output

True

Limits

Time: 2s · Memory: 256 MB

Code Editor
00:00
def all_unique(): lst = [1, 2, 3, 4] # Your code here return
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Input
[1, 2, 3, 4]
Expected Output
True