Binary Search in C

A program to show binary search using C language.

I am currently accepting programming work kindly contact me in the following email address for further details. Thank you.

My email address are the following jakerpomperada@gmail.com and jakerpomperada@yahoo.com.

My mobile number here in the Philippines is 09173084360.

My telephone number at home here in Bacolod City, Negros Occidental is (034) 4335675.

Program Listing

#include <stdio.h>

#include <conio.h>

void main( )

{

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

int mid, lower = 0 , upper = 9, num, flag = 1 ;

printf ( "Enter number to search: " ) ;

scanf ( "%d", &num ) ;

for ( mid = ( lower + upper ) / 2 ; lower <= upper ;

mid = ( lower + upper ) / 2 )

{

if ( arr[mid] == num )

{

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

flag = 0 ;

break ;

}

if ( arr[mid] > num )

upper = mid - 1 ;

else

lower = mid + 1 ;

}

if ( flag )

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

}