Cod sursa(job #3290847)

Utilizator unomMirel Costel unom Data 1 aprilie 2025 13:02:47
Problema Radix Sort Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 2.38 kb
#include <fstream>
#include <cstdio>
#include <cstring>
#include <vector>

using namespace std;

class OutParser {
private:
    FILE *fout;
    char *buff;
    int sp;

    void write_ch(char ch) {
        if (sp == 50000) {
            fwrite(buff, 1, 50000, fout);
            sp = 0;
            buff[sp++] = ch;
        } else {
            buff[sp++] = ch;
        }
    }


public:
    OutParser(const char* name) {
        fout = fopen(name, "w");
        buff = new char[50000]();
        sp = 0;
    }
    ~OutParser() {
        fwrite(buff, 1, sp, fout);
        fclose(fout);
    }

    OutParser& operator << (int vu32) {
        if (vu32 <= 9) {
            write_ch(vu32 + '0');
        } else {
            (*this) << (vu32 / 10);
            write_ch(vu32 % 10 + '0');
        }
        return *this;
    }

    OutParser& operator << (long long vu64) {
        if (vu64 <= 9) {
            write_ch(vu64 + '0');
        } else {
            (*this) << (vu64 / 10);
            write_ch(vu64 % 10 + '0');
        }
        return *this;
    }

    OutParser& operator << (char ch) {
        write_ch(ch);
        return *this;
    }
    OutParser& operator << (const char *ch) {
        while (*ch) {
            write_ch(*ch);
            ++ch;
        }
        return *this;
    }
};

ifstream f("radixsort.in");
OutParser g("radixsort.out");
int v[10000005];
int n, a, b, c;
int xmax;

void radix_sort()
{
    int q = 0;
    while(xmax != 0)
    {
        q++;
        xmax /= 10;
    }

    int d = 1;

    for(int y = 1; y<=q; y++)
    {
        vector<int> m[10];

        if(y == 1)
        {
            d = 1;
        }
        else
        {
            d = d * 10;
        }

        for(int i = 1; i<=n; i++)
        {
            m[(v[i]/d)%10].push_back(v[i]);
        }

        int ind = 0;
        for(int i = 0; i<=9; i++)
        {
            for(int j = 0; j<m[i].size(); j++)
            {
                ind++;
                v[ind] = m[i][j];
            }
        }
    }
}

int main()
{
    f>>n>>a>>b>>c;
    v[1] = b;
    xmax = v[1];
    for(int i = 2; i<=n; i++)
    {
        v[i] = (1LL*a * v[i-1] % c + b) % c;
        xmax = max(xmax, v[i]);
    }

    radix_sort();

    for(int i = 1; i<=n; i+=10)
    {
        g<<v[i]<<" ";
    }
    return 0;
}