C program to search an array element using Pointers.

Problem

Write a C program to search an element from an array at runtime by the user and the result to be displayed on the screen after search. If the searching element is not in an array then, we need to search element is not found.

Solution

An array is used to hold the group of common elements under one name

The array operations are as follows −

• Insert
• Delete
• Search

Algorithm

Refer an algorithm to search the elements into an array with the help of pointers −

Step 1 − Declare and read the number of elements.

Step 2 − Declare and read the array size at runtime.

Step 3 − Input the array elements.

Step 4 − Declare a pointer variable.

Step 5 − Allocate the memory dynamically at runtime.

Step 6 − Enter an element that to be searched.

Step 7 − Check if an element is present in an array by traversing. If an element is found display "Yes", otherwise "No".

Example

Size of array is: 5

The array elements are as follows:

1 2 3 4 5

Enter the element to be searched: 4

The output is as follows −

4 is present in the array

Example

Following is the C program to delete the elements into an array with the help of pointers −

 Live Demo

#include<stdio.h>
int i,l;
int search(int ,int *,int);
int main(){
   int n,m;
   printf("enter the size of array:");
   scanf("%d",&n);
   int a[n];
   printf("enter the elements:\n");
   for(i=0;i<n;i++){
      scanf("%d",&a[i]);
   }
   printf("enter the element to be searched:");
   scanf("%d",&m);
   search(n,a,m);
   return 0;
}
int search(int n,int *a,int m){
   for(i=0;i<n;i++){
      if(m==a[i]){
         l=1;
         break;
      }
   }
   if(l==1){
      printf("%d is present in the array",m);
   } else {
      printf("%d is not present in the array",m);
   }
}

Output

When the above program is executed, it produces the following output −

Run 1:
enter the size of array:5
enter the elements:
14
12
11
45
23
enter the element to be searched:11
11 is present in the array
Run 2:
enter the size of array:3
enter the elements:
12
13
14
enter the element to be searched:45
45 is not present in the array

Bhanu Priya

Published on 26-Mar-2021 07:13:44

• Related Questions & Answers
• C Program to insert an array element using pointers.
• C program to delete an array element using Pointers
• C++ Program to Find Minimum Element in an Array using Linear Search
• C++ Program to Find Maximum Element in an Array using Binary Search
• C++ Program to Find the Minimum element of an Array using Binary Search approach
• C++ Program to Find the peak element of an array using Binary Search approach
• Write a Golang program to search an element in an array
• Java Program to Recursively Linearly Search an Element in an Array
• Recursive program to linearly search an element in a given array in C++
• C++ Program to Search for an Element in a Binary Search Tree
• C Program to find sum of perfect square elements in an array using pointers.
• C program to find array type entered by user using pointers.
• How to find minimum element in an array using binary search in C language?
• How to find minimum element in an array using linear search in C language?
• C++ program to search specific values in an array