Cod sursa(job #2275985)

Utilizator cezar.plescaCezar Plesca cezar.plesca Data 3 noiembrie 2018 20:35:50
Problema Radix Sort Scor 30
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.24 kb
#include <algorithm>
#include <cstring>
#include <fstream>
#include <stdlib.h> 

using namespace std;
  
#define RADIX 0xFF
#define RADIX_SIZE 8
#define TOTAL_BYTES sizeof(V[0])
 
int N;
int V[10000000];
 
#define get_byte(x) ((x>>(byte * 8)) & RADIX)
 
int counter[1<<RADIX_SIZE];
int Index[1<<RADIX_SIZE];

void countsort(int A[], int B[], int byte) {
        
    memset(counter, 0, sizeof(counter));
    
    for(int i = 0; i < N; i++)
        ++counter[get_byte(A[i])];
    
    Index[0] = 0;
    
    for(int i = 1; i < 1<<RADIX_SIZE; i++)
        Index[i] = Index[i-1] + counter[i-1];
    
    for(int i = 0; i < N; i ++)
        B[Index[get_byte(A[i])]++] = A[i];
}
 
void radixsort() {
    //int *temp = new int[N];
	int *temp = (int*)malloc(N*sizeof(int));
    for (unsigned int i = 0; i < TOTAL_BYTES; i++) {
        if((i % 2)  == 0)
            countsort(V, temp, i);
        else
            countsort(temp, V, i);
    }
}
 
ifstream fin("radixsort.in");
ofstream fout("radixsort.out");
 
int main(){
	int A,B,C;
 
	fin>>N>>A>>B>>C;
 
	V[0]=B;
	for(int i=1;i<N;i++){
		V[i]=(1LL * A * V[i-1] % C + B) % C;
	}
 
	radixsort();
 
	for(int i=0;i<N;i+=10){
		 fout<<V[i]<<" ";
	}
 
	return 0;   
}