Cod sursa(job #629286)

Utilizator sunt_emoSunt emo sunt_emo Data 3 noiembrie 2011 01:28:10
Problema Suma si numarul divizorilor Scor 70
Compilator c Status done
Runda Arhiva educationala Marime 1.13 kb
#include <stdio.h>
#define N 1000000

char l[N+10];
int pr[79000],i,k=1;
long long j,np=1,m,n1,n2;
short t,d,s;

int main () {
    FILE * in=fopen ("ssnd.in","r");
    FILE * out=fopen ("ssnd.out","w");
    pr[0]=2;
    for (i=1; ((i*i)<<1)+(i<<1)<=N; i++) {
        pr[np++]=(i<<1)+1;
        if ((l[i>>3]&(1<<(i&7)))==0) {
            for (j=((i*i)<<1)+(i<<1); (j<<1)+1<=N; j+=(i<<1)+1) {
                l[j>>3]|=(1<<(j&7));
            }
        }
    }
    for (; (i<<1)+1<=N; ++i)
        if ((l[i>>3] & (1<<(i&7)))==0)
            pr[np++]=(i<<1)+1;
    fscanf (in,"%hd",&t);
    for (i=0; i<t; i++) {
        fscanf (in,"%lld",&n1);
        s=d=1;
        for (m=0; pr[m]*pr[m]<=n1; m++) {
            j=pr[m];
            if (!(n1%j)) {
                n2=n1;
                k=1;
                while (!((n1=n1/j)%j)) k++;
                d*=(k+1);
                s=s*(n2/n1*j-1)/(j-1)%9973;
            }
        }
        if (n1!=1) {
            d+=d;
            s=s*(n1*n1-1)/(n1-1)%9973;
        }
        fprintf (out,"%hd %hd\n",d,s);
    }
    fclose (in);
    fclose (out);
    return 0;
}