C Program to Search an element in Array
Posted by Samath
Last Updated: January 02, 2017
  569

Write a C program to read elements in an array and search whether an element exists in the array or not.

Code:

#include <stdio.h>
 
int main()
{
    int arr[100];
    int size, i, num, flag;
 
    /*
     * Read size of array and elements in array
     */
    printf("Enter size of array: ");
    scanf("%d", &size);
 
    printf("Enter elements in array: ");
    for(i=0; i<size; i++)
    {
        scanf("%d", &arr[i]);
    }
 
    printf("\nEnter the element to search within the array: ");
    scanf("%d", &num);
 
    /* Supposes that element is not in the array */
    flag = 0; 
    for(i=0; i<size; i++)
    {
        /* 
         * If element is found in the array
         */
        if(arr[i]==num)
        {
            flag = 1;
            printf("\n%d is found at position %d", num, i+1);
            break;
        }
    }
 
    /*
     * If element is not found in array
     */
    if(flag==0)
    {
        printf("\n%d is not found in the array", num);
    }
 
    return 0;
}