Cod sursa(job #2625663)

Utilizator UrsaWarlordFrincu Madalin Gabriel UrsaWarlord Data 6 iunie 2020 06:45:59
Problema Factorial Scor 0
Compilator cpp-64 Status done
Runda Arhiva de probleme Marime 1.52 kb
#include <bits/stdc++.h>

#define MAX_N 10000000 + 1

#define RADIX 0xFF

#define RADIX_SIZE 8

#define TOTAL_BYTES sizeof(numbers[0])

#define get_byte(x) ((x>>(byte * 8))&RADIX)

using namespace std;



int n;

int numbers[MAX_N];

ifstream fin("radixsort.in");

ofstream fout("radixsort.out");





void countsort(int A[], int B[], int byte)

{



    int counter[1<<RADIX_SIZE];

    int index[1<<RADIX_SIZE];

    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<<RADIX_SIZE; 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]; // avem nevoie de un array ca spatiu temporar

    for (int i = 0; i < TOTAL_BYTES; i ++)

    {

        if(i % 2 == 0)

            countsort(numbers, temp, i);// sortez dupa byte-ul i

        else

            countsort(temp, numbers, i);



    }



}



void read()

{

    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 write(ofstream& f)

{

    for(int i = 0; i < n; i +=10)

        f << numbers[i]<< ' ';

    f<<endl;



}







int main()



{

    read();

    radixsort();

    write(fout);

    return 0;

}