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Contest Level-1 Programs

In the given array of size arraylen, exactly one number is duplicate. Write a function to return the duplicate number. For example: if the input array contains {1, 2, 3, 4, 5, 6, 7, 8, 5}, then the result should be 5.

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Total Duration: 02:10:01

Introduction
00:12:56

Introduction

03:44

Collectiva Contest

09:12

Contest Level-1 Programs
00:57:30

Sum Of Digits

03:55

Unity Number

05:19

Find Duplicate

04:45

Find Missing Number

04:56

Extract Month Part

03:23

Reverse Number

03:10

Biggest

02:43

Sum Of Series

04:38

Simple Interest

01:24

My Subs

05:15

C Month Year

04:13

Name And City

02:06

Last Occurrence of Char

05:23

int Subs

02:48

Volume Of Cone

00:50

Biggest Of Four Numbers

01:56

Last Digit

00:46

Contest Level-2 Programs
00:59:35

Second Largest

04:20

Nth Prime Number

06:47

Fourth Digit From Left

03:30

Occurrences Of Is

06:31

Reverse Hyphened String

04:40

Number 2 Words

05:27

Month 2 C Month

05:10

Join Array

03:25

Split 2 Array

06:21

Find Average

05:43

Seconds 2 HMS

03:01

HMS 2 Seconds

04:40