The Pair Counter
A easy Python interview practice problem on DataDriven. Write and execute real python code with instant grading.
- Domain
- Python
- Difficulty
- easy
- Seniority
- L3
Problem
Given a list of integers, return the number of index pairs (i, j) with i < j and nums[i] == nums[j].
Summary
How many pairs can be formed from the crowd?
Practice This Problem
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