Implement program of Counting Sort.


#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#include<conio.h>
long int cnt=0;
void Counting_Sort(int *a,intn,int *b)
{
cnt++;
int max=a[0],i,j,*c;
cnt++;
for (i = 0; i < n; i++)
{
cnt+=2;
if (a[i] > max)
{
cnt++;
max = a[i];
}
}
cnt++;
c=(int *)malloc((max+1)*sizeof(int));
cnt++;
for(i=0;i<max;i++)
{
cnt+=2;
c[i] =0;
}
cnt++;
for(j=0;j<=n;j++)
{
cnt+=2;
c[a[j]] = c[a[j]] +1;
}
cnt++;
for(i=1;i<=max;i++)
{
cnt+=2;
c[i]=c[i] + c[i - 1];
}
cnt++;
for(j=0;j<n;j++)
{
cnt+=3;
b[c[a[j]]-1] = a[j];
c[a[j]]=c[a[j]] - 1;
}
}
int *create_random_data(int n)
{
int *p,i;
p=(int *)malloc(n*sizeof(int));
if(p==NULL)
{
return NULL;
}
else
{
for(i=0; i < n; i++)
{
p[i]=rand()%n; 
}
}
return p;
}
int main()
{
clrscr();
int *a,*b,*c,i,n;
printf("Enter value for n:");
scanf("%d",&n);
a=create_random_data(n);
b=(int *)malloc(n*sizeof(int));
Counting_Sort(a,n,b);
printf("Sorted data:\n");
for(i=0;i<n;i++)
{
printf("%d\n",b[i]);
}
printf("Steps Count: %ld",cnt);
return 0;
}

Comments

Post a Comment

Popular posts from this blog

Write user defined functions for the following sorting methods and compare their performance by time measurement with random data and Sorted data.

Image
SELECTION SORT: #include<stdio.h> #include<conio.h> #include<math.h> #include<time.h> #define n 10000 void selection_sort(int[]); unsigned long int count=0; void main() {             int a[n];             int choice,i;             clrscr();             printf("1.Sorted Data  2.Random Data \n");             scanf("%d",&choice);             switch(choice)             {                         case 1:    ...
Read more

Implement functions to print nth Fibonacci number using iteration and recursive method.

Image
Implement functions to print nth Fibonacci number using iteration and recursive method. Compare the performance of two methods by counting number of steps executed on various inputs. Also draw a comparative chart. (Fibonacci series 1, 1, 2, 3, 5, 8…..  Here 8 is the 6th Fibonacci number) #include<stdio.h> #include<conio.h> int iteration(int); int recursive(int); int count=0; void main() { int n,choice,ans; clrscr(); printf("\nenter nth number : "); scanf("%d",&n); printf(“\n==iteration==”); ans=iteration(n); printf(“\nans=%d\ncount=%d”,ans,count); printf(“\n\n==recursive==”); ans=recursive(n); printf("\nans=%d\ncount=%d",ans,count); getch(); } int iteration(int n) { int f=1,s=1,t,i; count++;   count++; for(i=3;i<=n;i++) { t=f+s; count++; f=s; count++; s=t; count++; } count++; return t; } int recursive(int n) { count++; if(n==0 || n==1) { cou...
Read more

Implement program for randomized version of quick sort and compare its performance with normal version of quick sort using steps count on various number of inputs.

RANDOMIZED QUICK SORT: #include<stdio.h> #include<conio.h> #define size 10 unsigned long count=0; void randomized_quick(int a[],int low,int high) {       int pivot;       count++;       count++;       if(low<high)       {                   count++;                   pivot=randomized_part(a,low,high);                   count++;                   randomized_quick(a,low,pivot-1);                   cou...
Read more