Skip to content
Open
Changes from all commits
Commits
File filter

Filter by extension

Filter by extension

Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
70 changes: 70 additions & 0 deletions Radix - sort
Original file line number Diff line number Diff line change
@@ -0,0 +1,70 @@
#include<iostream>
using namespace std;

// A utility function to get maximum value in arr[]
int getMax(int arr[], int size)
{
int max = arr[0];
for (int i = 1; i < size; i++)
if (arr[i] > max)
max = arr[i];
return max;
}

void CountingSort(int arr[], int size, int div)
{
int output[size];
int count[10] = {0};

for (int i = 0; i < size; i++)
count[ (arr[i]/div)%10 ]++;

for (int i = 1; i < 10; i++)
count[i] += count[i - 1];

for (int i = size - 1; i >= 0; i--)
{
output[count[ (arr[i]/div)%10 ] - 1] = arr[i];
count[ (arr[i]/div)%10 ]--;
}

for (int i = 0; i < size; i++)
arr[i] = output[i];
}


void RadixSort(int arr[], int size)
{
int m = getMax(arr, size);
for (int div = 1; m/div > 0; div *= 10)
CountingSort(arr, size, div);
}


int main()
{
int size;
cout<<"Enter the size of the array: "<<endl;
cin>>size;
int arr[size];
cout<<"Enter "<<size<<" integers in any order"<<endl;
for(int i=0;i<size;i++)
{
cin>>arr[i];
}
cout<<endl<<"Before Sorting: "<<endl;
for(int i=0;i<size;i++)
{
cout<<arr[i]<<" ";
}

RadixSort(arr, size);

cout<<endl<<"After Sorting: "<<endl;
for(int i=0;i<size;i++)
{
cout<<arr[i]<<" ";
}

return 0;
}