Cod sursa(job #2966046)

Utilizator RobertlelRobert Robertlel Data 16 ianuarie 2023 18:13:48
Problema Radix Sort Scor 70
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 3.37 kb
#include <fstream>
#include <vector>

using namespace std;
ifstream f ("radixsort.in");
ofstream g ("radixsort.out");

#include <stdio.h>
#include <ctype.h>

class InParser {
private:
	FILE *fin;
	char *buff;
	int sp;

	char read_ch() {
		++sp;
		if (sp == 4096) {
			sp = 0;
			fread(buff, 1, 4096, fin);
		}
		return buff[sp];
	}

public:
	InParser(const char* nume) {
		fin = fopen(nume, "r");
		buff = new char[4096]();
		sp = 4095;
	}

	InParser& operator >> (int &n) {
		char c;
		while (!isdigit(c = read_ch()) && c != '-');
		int sgn = 1;
		if (c == '-') {
			n = 0;
			sgn = -1;
		} else {
			n = c - '0';
		}
		while (isdigit(c = read_ch())) {
			n = 10 * n + c - '0';
		}
		n *= sgn;
		return *this;
	}

	InParser& operator >> (long long &n) {
		char c;
		n = 0;
		while (!isdigit(c = read_ch()) && c != '-');
		long long sgn = 1;
		if (c == '-') {
			n = 0;
			sgn = -1;
		} else {
			n = c - '0';
		}
		while (isdigit(c = read_ch())) {
			n = 10 * n + c - '0';
		}
		n *= sgn;
		return *this;
	}
};

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;
    }
};

int  n , v[10000005];

vector < int > a[12];

int main() {

     InParser f("radixsort.in");
     OutParser g("radixsort.out");
    int a1 , b , c;
    f >> n >> a1 >> b >> c;
    v[1] = b;
    int maxi = 0;
    for (int i = 2 ; i <= n ; i++)
        v[i] = (1LL * a1 * v[i - 1] + b) % c , maxi = max (maxi , v[i]);


        long long divider = 1;
        while (divider < maxi)
        {
            for (int i = 1 ; i <= n ; i++)
            {
                int u = (v[i] / divider) % 10;
                a[u].emplace_back (v[i]);
            }
            int k = 0;
            for (int i = 0 ; i <= 9 ; i++)
            {
                for (int j = 0 ;j < a[i].size() ; j++)
                {
                    k++;
                    v[k] = a[i][j];
                }
            }
            for (int i = 0 ; i <= 9 ; i++)
                a[i].clear();


            divider = divider * 10;
        }

        int k = 1;
        while (k <= n)
        {
            g << v[k] <<" ";
            k = k + 10;
        }

    return 0;
}