63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/*
|
|
* C Program to search for an element in a list using
|
|
*/
|
|
#include <stdio.h>
|
|
|
|
int search(int [], int, int);
|
|
int main()
|
|
{
|
|
int size, index, key;
|
|
int list[20];
|
|
int count = 0;
|
|
int i;
|
|
printf("Enter the size of the list: ");
|
|
scanf("%d", &size);
|
|
index = size;
|
|
printf("Printing the list:\n");
|
|
for (i = 0; i < size; i++)
|
|
{
|
|
list[i] = rand() % size;
|
|
printf("%d\t", list[i]);
|
|
}
|
|
printf("\nEnter the key to search: ");
|
|
scanf("%d", &key);
|
|
while (index > 0)
|
|
{
|
|
index = search(list, index - 1, key);
|
|
/* In an array first position is indexed by 0 */
|
|
printf("Key found at position: %d\n", index + 1);
|
|
count++;
|
|
}
|
|
if (!count)
|
|
printf("Key not found.\n");
|
|
return 0;
|
|
}
|
|
int search(int array[], int size, int key)
|
|
{
|
|
int location;
|
|
if (array[size] == key)
|
|
{
|
|
return size;
|
|
}
|
|
else if (size == -1)
|
|
{
|
|
return -1;
|
|
}
|
|
else
|
|
{
|
|
return (location = search(array, size - 1, key));
|
|
}
|
|
}
|
|
/*
|
|
*OUTPUT:
|
|
Enter the size of the list: 10
|
|
|
|
Printing the list:
|
|
3 6 7 5 3 5 6 2 9 1
|
|
|
|
Enter the key to search: 5
|
|
|
|
Key found at position: 6
|
|
|
|
Key found at position: 4
|
|
*/ |