In this source code example, we will write a code to implement the Radix Sort algorithm in the C programming language.

In this C program, we will take input from the User or console.

Let's write a C program to sort N numbers in ascending order using the Radix Sort algorithm:

``````#include<stdio.h>

void main() {
int x[20], i, n;
printf("\n Enter the no of element to be sorted:");
scanf("%d", &n);
printf("\n Enter %d elements:", n);
for (i = 0; i < n; i++)
scanf("%d", &x[i]);
printf("\n The sorted array is:\n");
for (i = 0; i < n; i++)
printf("%4d", x[i]);
}

void Radixsort(int a[], int n) {
int bucket[10][10], buck[10];
int i, j, k, l, num, div, large, pass;
div = 1;
num = 0;
large = a[0];
for (i = 0; i < n; i++) {
if (a[i] > large)
large = a[i];
}
while (large > 0) {
num = num + 1;
large = large / 10;
}
for (pass = 0; pass < num; pass++) {
for (k = 0; k < 10; k++)
buck[k] = 0;
for (i = 0; i < n; i++) {
l = (a[i] / div) % 10;
bucket[l][buck[l]++] = a[i];
}
i = 0;
for (k = 0; k < 10; k++) {
for (j = 0; j < buck[k]; j++)
a[i++] = bucket[k][j];
}
div = div * 10;
}
}

``````

Output:

``````
Enter the no of element to be sorted:
5

Enter 5 elements:
10
50
30
20
40

The sorted array is:
10  20  30  40  50``````