Cod sursa(job #2897682)

Utilizator vlad082002Ciocoiu Vlad vlad082002 Data 4 mai 2022 15:21:21
Problema Radix Sort Scor 100
Compilator cpp-64 Status done
Runda Arhiva educationala Marime 1.07 kb
#include <bits/stdc++.h>

typedef long long ll;

using namespace std;

ifstream fin("radixsort.in");
ofstream fout("radixsort.out");

	
const int maxN = 10000005, base = 256;
int n, a, b, c, v[maxN], aux[maxN];
int freq[base + 5], poz[base + 5];


int main() {
    fin >> n >> a >> b >> c;
	
    v[1] = b;
    for(int i = 2; i <= n; i++) {
	    v[i] = 1LL * (1LL * v[i - 1] * a + b) % c;
    }
	
    for(int i = 0, mask = 255; i < 32; i += 8, mask <<= 8) {
	    for(int j = 1; j <= n; j++) {
            int cifra = (v[j] & mask) >> i;
            freq[cifra]++;
        }

	    for(int j = 1; j < base; j++) freq[j] += freq[j - 1];
	
        for(int j = 1; j <= n; j++) {
            int cifra = (v[j] & mask) >> i;
            poz[cifra]++;
            int newpoz = poz[cifra];
            if(cifra > 0) newpoz += freq[cifra - 1];
            aux[newpoz] = v[j];
        }
	
        for(int j = 1; j <= n; j++) v[j] = aux[j];
	
        for(int j = 0; j < base; j++) {
            freq[j] = 0;
            poz[j] = 0;
        }
    }
	
    for(int i = 1; i <= n; i += 10) fout << v[i] << ' ';
}