Linear search in a unsorted array in C

Here is a simple program in C that I would like to share with you guys a linear search in a unsorted array. The code is very simple and shows how to use C language in Linear Searching.

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Program Listing

linear.c

#include <stdio.h>

#include <conio.h>

void main( )

{

int arr[10] = { 11, 2, 9, 13, 57, 25, 17, 1, 90, 3 } ;

int i, num ;

clrscr( ) ;

printf ( "Enter number to search: " ) ;

scanf ( "%d", &num ) ;

for ( i = 0 ; i <= 9 ; i++ )

{

if ( arr[i] == num )

break ;

}

if ( i == 10 )

printf ( "Number is not present in the array." ) ;

else

printf ( "The number is at position %d in the array.", i ) ;

getch( ) ;

}