Cod sursa(job #1379259)

Utilizator PTAdrian64Pop-Tifrea Adrian PTAdrian64 Data 6 martie 2015 17:11:45
Problema Radix Sort Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.36 kb
#include <fstream>
#define nmax 10000001
#include <cstring>
#define TOTAL_BYTES sizeof(numbers[0])

using namespace std;

ifstream fin("apm.in");
ofstream fout("apm.out");

int numbers[nmax];
int n;

#define get_byte(x) ((x>>(byte*8))&0xFF)

//void read();
//void countersort(int*&,int*&,int);
//void radixsort();
//void print();

void read(){
    //scanf("%d %d %d %d ",&n,&a,&b,&c);
    int a,b,c;
    fin>>n>>a>>b>>c;
    numbers[0] = b%c;
    for(int i = 1;i < n;i++)
        numbers[i] = (1LL*a*numbers[i-1]%c + b)%c;
}
void countersort(int A[],int B[],int byte){
    int counter[1<<8];
    int index[1<<8];
    memset(counter,0,sizeof(counter));
    for(int i = 0;i < n;i++)++counter[get_byte(A[i])];
    index[0] = 0;
    for(int i = 1;i < 1<<8;i++)index[i] = index[i-1] + counter[i-1];
    for(int i = 0;i < n;i++)B[index[get_byte(A[i])]++] = A[i];
}
void radixsort(){
    int *temp = new int[n];
    for(int i = 0;i < TOTAL_BYTES;i++){
        if(i%2 == 0)countersort(numbers,temp,i);
        else countersort(temp,numbers,i);
    }
}
void print(){
    for(int i = 0;i < n;i += 10)//printf("%d ",numbers[i]);
        fout<<numbers[i]<<" ";
    fout<<"\n";
    //printf("\n");
}


int main(){
    //freopen("apm.in","r",stdin);
    //freopen("apm.out","w",stdout);
    read();
    radixsort();
    print();
        return 0;
}