#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void BucketSort(int *arr,int len,int max)
{
    int *bucket;
    int i;
    int cnt=0;
    bucket=(int*)malloc(sizeof(int) * max);
    memset(bucket,0,sizeof(int)*max);
    for(i=0;i<len;i++)
    {
        bucket[arr[i]]++;
    }
    
    for(i=0;i<max;i++)
    {
        while(bucket[i]--)
        {
            arr[cnt++]=i;
        }
    }
}



int main()
{
    int arr[]={1,5,2,7,12,5,1,7,2,1,7,0,12,5,3,4,6,1};
    int len=(int)(sizeof(arr)/sizeof(int));
    BucketSort(arr,len,20);

    
    for(int i=0;i<len;i++)
    {
        if(i) putchar(' ');
        printf("%d",arr[i]);
    }


    return 0;
}