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Friday 26 July 2013

C program to search an element in an array

Write a C program to search a number in an array using linear search.


  #include <stdio.h>
  #define MAX 256

  int main() {
        int arr[MAX], ele, i, n;

        /* get the number of entries from the user */
        printf("Enter the number of array entries:");
        scanf("%d", &n);

        /* get the array entries from the user */
        printf("Enter the array entries:\n");
        for (i = 0; i < n; i++) {
                printf("Data[%d]: ", i);
                scanf("%d", &arr[i]);
        }

        /* get the element to be searched */
        printf("Enter the element to be searched:");
        scanf("%d", &ele);

        /* checks whether search element in available in i/p array */
        for (i = 0; i < n; i++) {
                if (arr[i] == ele) {
                        printf("Search element found!!\n");
                        return 0;
                }
        }

        /* search element not found */
        printf("Given search element is not found!!\n");

        return 0;
  }



  Output:
  jp@jp-VirtualBox:~/$ ./a.out 
  Enter the number of array entries:5
  Enter the array entries:
  Data[0]: 10
  Data[1]: 20
  Data[2]: 30
  Data[3]: 40
  Data[4]: 50
  Enter the element to be searched:50
  Search element found!!


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