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countingsortalgorithm.cpp
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countingsortalgorithm.cpp
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#include<iostream>
using namespace std;
void Countin_sort(int input_array[], int n, int r)
{
int output_array[n],count_array[r];
for (int i = 0; i < r; i++)
{
count_array[i]=0;
}
for (int i = 0; i < n; i++)
{
++count_array[input_array[i]];
}
for (int i = 1; i < r; i++)
{
count_array[i]=count_array[i]+count_array[i-1];
}
for (int i = 0; i < n; i++)
{
output_array[--count_array[input_array[i]]]=input_array[i];
}
for (int i = 0; i < n; i++)
{
input_array[i]=output_array[i];
}
}
int main()
{
int n, *a, range= 10;
cout<<"Enter the size of the array: "<<endl;
cin>>n;
a=new (nothrow) int[n];
cout<<"Enter the elements of the array in range 0-9: "<<endl;
for (int i = 0; i < n; i++)
{
cin>>a[i];
}
cout<<"The unsorted list of the elements are: "<<endl;
for (int i = 0; i < n; i++)
{
cout<<a[i]<<"\t";
}
cout<<"\n";
Countin_sort(a,n,range);
cout<<"The sorted list of the elements: "<<endl;
for (int i = 0; i < n; i++)
{
cout<<a[i]<<"\t";
}
return 0;
}