Cod sursa(job #1785877)

Utilizator elffikkVasile Ermicioi elffikk Data 22 octombrie 2016 03:06:28
Problema Radix Sort Scor 30
Compilator cpp Status done
Runda Arhiva educationala Marime 0.91 kb
#include <iostream>
#include <fstream>
#include <vector>
#include <algorithm>
#include <cmath>
using namespace std;

main() {
    ifstream cin("radixsort.in");
    ofstream cout("radixsort.out");
    int n, a, b, c;
    cin>>n>>a>>b>>c;
    //sqrtN buckets
    int kn = round(sqrt(n))+2;
    vector< vector<int> > t(kn);
    //generate vector
    int x = b;
    t[x/kn].push_back(x);
    for (int i = 1; i<n; i++) {
        int x = (a * x + b) % c;
        t[x/kn].push_back(x);
    }
    //sort buckets
    for (int i = 0; i < t.size(); i++) {
        sort(t[i].begin(), t[i].end());
    }
    //merge vectors
    vector<int> v;
    for (int i = 0; i < t.size(); i++) {
        if (t[i].size()) {
            v.reserve(t[i].size());
            v.insert(v.end(), t[i].begin(), t[i].end());
        }
    }
    //show
    for(int i = 0; i < v.size(); i+=10) {
        cout<<v[i]<<" ";
    }

}