Cod sursa(job #2649396)

Utilizator buhaidarius@gmail.comBuhai Darius [email protected] Data 14 septembrie 2020 17:02:41
Problema Radix Sort Scor 0
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.18 kb
#include <iostream>
#include <fstream>
#include <vector>

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

using namespace std;

const long MAXN = 1e7+1;

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

int v[MAXN];
int n;

void count_sort(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 radix_sort(){
    int *temp = new int[n];
    for(int i=0;i<sizeof(v[0]);i++)
        if(i%2==0)
            count_sort(v, temp, i);
        else
            count_sort(temp, v, i);
}

void generate_num(int a, int b, int c){
    v[0] = b;
    int maxi = v[0];
    for(int i=1;i<n;i++){
        v[i] = (a*v[i-1]+b)%c;
        if(v[i]>maxi) maxi = v[i];
    }
}

int main() {
    int a, b, c;
    fin>>n>>a>>b>>c;
    generate_num(a, b, c);
    radix_sort();
    for(int i=0;i<n;i+=10)
        fout<<v[i]<<' ';
    return 0;
}