Cod sursa(job #2388585)

Utilizator trifangrobertRobert Trifan trifangrobert Data 26 martie 2019 10:54:53
Problema Radix Sort Scor 0
Compilator cpp-32 Status done
Runda Arhiva educationala Marime 1.19 kb
#include <fstream>
#include <deque>
#include <string>
#include <algorithm>

using namespace std;

const int NMAX = 10000005;
int N, A, B, C;
int v[NMAX];
deque <int> bucket[260];
string ans;

void Add(int x)
{
    string aux;
    if (x == 0)
        aux += "0";
    else while (x > 0)
    {
        aux += (char)(x % 10 + '0');
        x /= 10;
    }
    aux += ' ';
    reverse(aux.begin(), aux.end());
    ans += aux;
}

int main()
{
    ifstream fin("radixsort.in");
    ofstream fout("radixsort.out");
    fin >> N >> A >> B >> C;
    v[1] = B;
    for (int i = 2;i <= N;++i)
        v[i] = (1LL * A * v[i - 1] + B) % C;
    for (int p = 0;p < 4;++p)
    {
        for (int i = 1;i <= N;++i)
        {
            int val = (v[i] >> (8 * p)) & 255;
            bucket[val].push_back(v[i]);
        }
        N = 0;
        for (int i = 0;i < 256;++i)
        {
            while (!bucket[i].empty())
            {
                v[++N] = bucket[i].front();
                bucket[i].pop_front();
            }
        }
    }
    for (int i = 1;i <= N;i += 10)
        Add(v[i]);
    fout << ans << "\n";
    fin.close();
    fout.close();
    return 0;
}