MIT-Curricular/DS/C/Lab/Week1/binary.c

76 lines
1.4 KiB
C

#include <stdio.h>
int main()
{
int a,c,n,i,temp;
int flag=0;
int arr[10];
printf("Enter the number of elements you want in the array: ");
scanf("%d",&n);
printf("Enter the numbers you want in the array:\n");
for(i=0;i<n;i++){
scanf("%d",&arr[i]);
}
printf("The numbers in the array are:\n");
for(i=0;i<n;i++){
printf("%d\n",arr[i]);
}
//sorting
int j;
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
if(arr[i]<arr[j])
{
temp = arr[i];
arr[i]=arr[j];
arr[j]=temp;
}
}
}
printf("The numbers in the sorted array are:\n");
for(i=0;i<n;i++){
printf("%d\n",arr[i]);
}
// binary search
printf("Enter the number you want to search: ");
scanf("%d",&a);
int max = n-1;
int min = 0;
for(i=0;i<n;i++)
{
c=(max+min)/2;
if(a==arr[c])
{
printf("The element is at position %d. \n",c);
flag = 1;
break;
}
if(a<arr[max] && a>arr[c])
min=c;
if(a<arr[c] && a>arr[min])
max=c;
}
if(flag){
printf("The number has been found.\n");
}else{
printf("The number does not exist in this array.\n");
}
return 0;
}