Cod sursa(job #1735333)

Utilizator antanaAntonia Boca antana Data 29 iulie 2016 15:43:57
Problema Radix Sort Scor 100
Compilator cpp Status done
Runda Arhiva educationala Marime 0.88 kb
#include <cstdio>
#define MAXN 10000000
#define MAXR 255
#define BYTE 8

int n, v[MAXN+1], fr[MAXR+1], a[MAXN+1];

inline int key(int k, int x)
{
    return (x>>k)&((1<<BYTE)-1);
}
int main()
{
    freopen("radixsort.in", "r", stdin);
    freopen("radixsort.out", "w", stdout);

    int A, B, C;

    scanf("%d%d%d%d", &n, &A, &B, &C);

    v[1]=B;
    for(int i=2;i<=n;++i)
        v[i]=(1LL*A*v[i-1]+B) % C;

    for(int i=0;i<4;++i)
    {
        for(int j=0;j<=MAXR;++j)
            fr[j]=0;

        for(int j=1;j<=n;++j)
            fr[key(i*BYTE, v[j])]++;
        for(int j=1;j<=MAXR;++j)
            fr[j]+=fr[j-1];
        for(int j=n;j>0;--j)
            a[fr[key(i*BYTE, v[j])]]=v[j], fr[key(i*BYTE, v[j])]--;
        for(int i=1;i<=n;++i)
            v[i]=a[i];
    }

    for(int i=1;i<=n;i+=10)
        printf("%d ", v[i]);
    return 0;
}