Cod sursa(job #1607290)

Utilizator alexalbu95Albu Alexandru alexalbu95 Data 20 februarie 2016 23:09:15
Problema Radix Sort Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 1 kb
#include <fstream>
#include <vector>
using namespace std;

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

const int maxn = 10000005;
long n, v[maxn], output[maxn];

int read() {

	int a, b, c;
	int maxim;
	f >> n >> a >> b >> c;

	v[0] = b%c;
	maxim = v[0];
	for (int i = 1; i < n; ++i) {
		v[i] = (a*v[i - 1] + b) % c;
		if (v[i] > maxim)
			maxim = v[i];
	}

	return maxim;
}

void countingSort(int exp) {

	int i, count[10] = { 0 };
	

	for (i = 0; i < n; ++i)
		count[(v[i] / exp) % 10] ++;

	for (i = 1; i < 10; ++i)
		count[i] += count[i - 1];
	
	for (i = n - 1; i >= 0; --i) {
		output[count[(v[i] / exp) % 10] - 1] = v[i];
		count[(v[i] / exp) % 10]--;
	}
	
	for (i = 0; i < n; ++i)
		v[i] = output[i];
}

void radix(int maxim) {
	for (int exp = 1; maxim / exp > 0; exp *= 10)
		countingSort(exp);
}

void print() {
	for (int i = 0; i < n; i += 10)
		g << v[i]<<" ";
	g << "\n";
}

int main()
{
	radix(read());
	print();
	
	return 0;
}