Cod sursa(job #2451377)

Utilizator uvIanisUrsu Ianis Vlad uvIanis Data 26 august 2019 16:08:14
Problema Radix Sort Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 0.83 kb
#include <fstream>
#include <string.h>
using namespace std;
int N, A, B, C, v[10000001], aux[10000001], counter[256];


int main()
{
    ios_base::sync_with_stdio(false);

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

    fin >> N >> A >> B >> C;
    v[0] = B % C;

    for(int i = 1; i < N; i++) v[i] = ((1LL * A * v[i - 1] + B) % C);

    for(int byte = 0; byte <= 3; byte++)
    {
        memset(counter, 0, sizeof counter);

        for(int i = 0; i < N; i++)  counter[(v[i] >> (byte * 8)) & 255] ++;

        for(int i = 1; i <= 255; i++) counter[i] += counter[i - 1];

        for(int i = N - 1; i >= 0; i--) aux[--counter[(v[i] >> (byte * 8)) & 255]] = v[i];

        for(int i = 0; i < N; i++) v[i] = aux[i];
    }

    for(int i = 0; i < N; i += 10) fout << v[i] << " ";
}