Cod sursa(job #2125999)

Utilizator bogobatBerbece Daniel bogobat Data 8 februarie 2018 22:48:21
Problema Radix Sort Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 1.15 kb
#include <iostream>
#include <fstream>
#include <queue>
using namespace std;

int v[10000001];
int main()
{
    ifstream in("radixsort.in");
    ofstream out("radixsort.out");

    int n, a, b, c;
    in >> n >> a >> b >> c;
    int maxVal = b;
    v[1] = b;
    for(size_t i = 2; i <= n; i++) {
        v[i] = (a * v[i-1] + b)%c;
        maxVal = ((v[i]>maxVal)?v[i]:maxVal);
    }

    int maxIteration = 0;
    for(; maxVal > 0; maxVal /= 10) {
        maxIteration++;
    }

    queue<int> buckets[10];

    for(size_t iteration = 0; iteration < maxIteration; iteration++) {
        for(int i = 1; i <= n; i++) {
            int base_div = ((iteration == 0)? 1 : iteration*10);
            int digit = (v[i]/base_div)%10;
            buckets[digit].push(v[i]);
        }

        int index = 1;
        for(size_t i = 0; i < 10; i++) {
            while(!buckets[i].empty()) {
                v[index++] = buckets[i].front();
                buckets[i].pop();
            }
        }
    }

    for(size_t i = 1; i <= n; i++) {
        if((i-1) % 10 == 0) {
            out << v[i] << " ";
        }
    }


    return 0;
}