Radix Sort program in C Language algorithm implementation – Radix sort is a non-comparative sorting algorithm. The Radix sort algorithm is the most preferred algorithm for the unsorted list. Only one element which has significantly large number of digits
Complexity
- Worst case time complexity: O(logb(mx)(n+b))
- Best case time complexity: All elements have the same number of digits
- Average case time complexity: O(d(n+b))
- Space Complexity: O(n+b)
In this program user would be asked to enter the number of elements along with the element values and then the programs would sort them in ascending order by using merge sorting algorithm logic.
Types of Sorting Algorithms:

Radix Sort algorithm C Program implementation
#include<stdio.h>
int get_max (int a[], int n){
int max = a[0];
for (int i = 1; i < n; i++)
if (a[i] > max)
max = a[i];
return max;
}
void radix_sort (int a[], int n){
int bucket[10][10], bucket_cnt[10];
int i, j, k, r, NOP = 0, divisor = 1, lar, pass;
lar = get_max (a, n);
while (lar > 0){
NOP++;
lar /= 10;
}
for (pass = 0; pass < NOP; pass++){
for (i = 0; i < 10; i++){
bucket_cnt[i] = 0;
}
for (i = 0; i < n; i++){
r = (a[i] / divisor) % 10;
bucket[r][bucket_cnt[r]] = a[i];
bucket_cnt[r] += 1;
}
i = 0;
for (k = 0; k < 10; k++){
for (j = 0; j < bucket_cnt[k]; j++){
a[i] = bucket[k][j];
i++;
}
}
divisor *= 10;
printf ("After pass %d : ", pass + 1);
for (i = 0; i < n; i++)
printf ("%d ", a[i]);
printf ("\n");
}
}
int main (){
int i, n, a[10];
printf ("Enter the number of items to be sorted: ");
scanf ("%d", &n);
printf ("Enter items: ");
for (i = 0; i < n; i++){
scanf ("%d", &a[i]);
}
radix_sort (a, n);
printf ("Sorted items : ");
for (i = 0; i < n; i++)
printf ("%d ", a[i]);
printf ("\n");
return 0;
}
OUTPUT
Enter number of items to be sorted 6
Enter items:56 78 12 21 56 56
After pass 1 : 12 21 56 56 56 78
After pass 2 : 21 12 56 56 56 78
After pass 3 : 12 21 56 56 56 78
Sorted items : 12 21 56 56 56 78
Additional Reading
- SEO Practices Everyone Should Follow SEO Rules
- Complete Top SEO Checklist
- Yoast Seo Premium 15.2 Nulled – WordPress SEO Plugin
- Top 50+ SEO Interview Questions
- What is a Backlink? How to Get More Backlinks
- TCS INTERVIEW QUESTIONS
- Top 20 Python Project Ideas
- Top 50 Python Project with Source Code
- Top 20 Android Project with Source Code
- Top 20 Interview Programs
- Top 20 Company Interview Questions
you can read more articles like this here.
READ MORE
If you found this post useful, don’t forget to share this with your friends, and if you have any query feel free to comment it in the comment section.❤