55-linear_search.c

#include <stdio.h> 

int search(int arr[], int n, int x) 
{ 
	int i; 
	for (i = 0; i < n; i++) 
		if (arr[i] == x) 
			return i; 
	return -1; 
} 
int main(void) 
{ 
	int arr[] = { 2, 3, 4, 10, 40 }; 
	int x = 10; 
	int n = sizeof(arr) / sizeof(arr[0]);
	int result = search(arr, n, x); 
	(result == -1) 
		? printf("Element is not present in array") 
		: printf("Element is present at index %d", result); 
	return 0; 
}