Given an array of non-duplicating numbers from 1 to n where one number is missing, write an efficient java program to find that missing number.

Given an array of non-duplicating numbers from 1 to n where one number is missing, write an efficient java program to find that missing number.

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: medium

标签: interviewbit, java, topic-specific

参考答案摘要

Idea is to find the sum of n natural numbers using the formula and then finding the sum of numbers in the given array. Subtracting these two sums results in the number that is the actual missing numbe...

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