Practical Name : Write a ‘C’ program to create a random array of n integers. Accept a value x from user and use Binary search algorithm to check whether the number is present in array or not
#include <stdio.h> int main()
{
int c, first, last, middle, n, search, array[100];
printf("Enter number of elements:\n");
scanf("%d",&n);
printf("Enter %d integers:\n", n);
for (c = 0; c < n; c++)
scanf("%d",&array[c]);
printf("Enter the value to find:\n");
scanf("%d", &search);
first = 0;
last = n - 1;
middle = (first+last)/2;
while (first <= last) {
if (array[middle] < search) first = middle + 1;
else if (array[middle] == search) {
printf("%d is present at index %d.\n", search, middle+1); break;
REMARK:-
}
else
last = middle - 1; middle = (first + last)/2;
}
if (first > last)
printf("Not found! %d is not present in the list.\n", search); return 0;
}