Discuss the approach for calculating all the equal combinations formed by a pair of numbers in an array using a hashmap i.e The numbers must satisfy these two conditions: nums[i] == nums[j] and i < j Answer)

Discuss the approach for calculating all the equal combinations formed by a pair of numbers in an array using a hashmap i.e The numbers must satisfy these two conditions: nums[i] == nums[j] and i < j Answer)

题目类型: 技术面试题

这是一道技术面试题，常见于澳洲IT公司面试中。

难度: easy

标签: interviewbit, hashmap, topic-specific, data-structures

参考答案摘要

You all must have studied combinations, so the concept of combinations states that every time we just have to select a pair from n numbers in an array that satisfies the given conditions and the formu...

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