Cod sursa(job #3156184)

Utilizator verde.cristian2005Verde Flaviu-Cristian verde.cristian2005 Data 10 octombrie 2023 19:26:57
Problema Radix Sort Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 2.82 kb
#include <fstream>
using namespace std;
#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;
    }
};

InParser in("radixsort.in");
OutParser out("radixsort.out");

int v[10000001],n,cnt[(1 << 16) + 1],aux[10000001];
void sorteaza(int p)
{
    int i;
    for(i=1; i<=n; i++)
        cnt[(v[i]>>p)%(1 << 16)]++;
    for(i=1; i<(1 << 16); i++)
        cnt[i]+=cnt[i-1];
    for(i=n; i>=1; i--)
        aux[cnt[(v[i]>>p)%(1 << 16)]--]=v[i];
    for(i=1; i<=n; i++)
        v[i]=aux[i];
}
void radixsort()
{
    for(int put=0; put<2; put++)
    {
        sorteaza(16*put);
        for(int i=0; i<(1 << 16); i++)
            cnt[i]=0;
    }
}
int main()
{
    int a,b,c,i;
    in>>n>>a>>b>>c;
    v[1]=b;
    for(i=2; i<=n; i++)
        v[i]=(1LL*a*v[i-1]+b)%c;
    radixsort();
    for(i=1; i<=n; i+=10)
        out<<v[i]<<" ";
    return 0;
}