# Write A C++ program For Radix Sort Using Dynamic Array

#include <iostream>
#include <cstdlib>
using namespace std;
int getMax(int arr[], int n)
{
int max = arr[0];
for (int i = 1; i &lt; n; i++)
if (arr[i] &gt; max)
max = arr[i];
return max;
}

void countSort(int arr[], int n, int exp)
{
int output[n];
int i, count[10] = {0};
for (i = 0; i &lt; n; i++)
count[(arr[i] / exp) % 10]++;
for (i = 1; i &lt; 10; i++)
count[i] += count[i - 1];
for (i = n - 1; i &gt;= 0; i--)
{
output[count[(arr[i] / exp) % 10] - 1] = arr[i];
count[(arr[i] / exp) % 10]--;
}
for (i = 0; i &lt; n; i++)
arr[i] = output[i];
}

{
int m = getMax(arr, n);
for (int exp = 1; m / exp &gt; 0; exp *= 10)
countSort(arr, n, exp);
}

int main()
{
int arr[100],n,i;

cout&lt;&lt;"Enter No. of Elements : ";
cin&gt;&gt;n;

cout&lt;&lt;"\nEnter Elements : \n";
for(i=0;i    {
cin&gt;&gt;arr[i];
}
cout&lt;&lt;"\nsorted Elements : \n";
for (int i = 0; i &lt; n; i++)
cout &lt;&lt; arr[i] &lt;    return 0;
}

output:-

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#### post written by: Ghanendra Yadav

Hi, I’m Ghanendra Yadav, SEO Expert, Professional Blogger, Programmer, and UI Developer. Get a Solution of More Than 500+ Programming Problems, and Practice All Programs in C, C++, and Java Languages. Get a Competitive Website Solution also Ie. Hackerrank Solutions and Geeksforgeeks Solutions. If You Are Interested to Learn a C Programming Language and You Don't Have Experience in Any Programming, You Should Start with a C Programming Language, Read: List of Format Specifiers in C.