How to Find Missing Number In Array

by interviewspreparation.com/

Welcome back, visitors. 'Find missing number questions' are intermediate problems commonly asked in interviews.

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int maxNumber = 0; int totalOfArrayElements = 0; for (int i = 0; i < questionArray.Length; i++) { if (maxNumber < questionArray[i]) { maxNumber = questionArray[i]; } totalOfArrayElements += questionArray[i]; }

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int mainTotal = 0; for (int i = 0;i <= maxNumber;i++) { mainTotal += i; } output = mainTotal - totalOfArrayElements;

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To understand how it is working follow our website

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