Cod sursa(job #2155796)

Utilizator inquisitorAnders inquisitor Data 8 martie 2018 09:36:41
Problema Sortare prin comparare Scor 0
Compilator cpp Status done
Runda Arhiva educationala Marime 0.88 kb
#include <cstdio>
#pragma GCC optimize("O1")

unsigned int N, v[0x80000], w[0x80000];

__attribute__((always_inline)) void CountingSort(unsigned int A[], unsigned int B[], unsigned int digit)
{
    unsigned int frequence[0x800]{}, index[0x800], i = N; index[0x0] = ~0x0;

    while(i) ++frequence[A[--i] >> digit & 0x7FF];

    for(; i != 0x800; index[++i] = index[~-i] + frequence[~-i]);

    for(i = 0x0; i != N; ++i) B[++index[A[i] >> digit & 0x7FF]] = A[i];
}

int main()
{
    freopen("algsort.in", "r", stdin);
    freopen("algsort.out", "w", stdout);

    scanf("%d", &N);

    for(unsigned int i = 0x0; i != N; ++i)
    {
        scanf("%d", &v[i]);
    }

    CountingSort(v, w, 0x0);
    CountingSort(w, v, 0xB);
    CountingSort(v, w, 0x16);

    for(unsigned int i = 0x0; i != N; ++i)
    {
        printf("%d ", w[i]);
    }

    return 0x0;
}