Cod sursa(job #2637244)

Utilizator Alex_tz307Lorintz Alexandru Alex_tz307 Data 21 iulie 2020 23:20:52
Problema Radix Sort Scor 60
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.15 kb
#include <bits/stdc++.h>

using namespace std;

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

#define MAX_N 10000000
#define RADIX 255
#define RADIX_SIZE 8
#define TOTAL_BYTES sizeof(numbers[0])
#define get_byte(x) ((x >> (byte * 8)) & RADIX)

int n, numbers[MAX_N];

void CountSort (int A[], int B[], int byte) {
  int counter[1 << RADIX_SIZE], 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];
  for (int i = 0; i < TOTAL_BYTES; i ++) {
    if(i % 2 == 0)
      CountSort (numbers, temp, i);
    else
      CountSort (temp, numbers, i);
  }
}

int main () {
  int a,b,c;
  fin >> n >> a >> b >> c;
  numbers[0] = b % c;
  for (int i = 1; i < n; i ++)
    numbers[i] = ((long long)a * numbers[i - 1] % c + b) % c;
  RadixSort();
  for (int i = 0; i < n; i += 10)
    fout << numbers[i] << ' ';
  return 0;
}