Cod sursa(job #1706639)

Utilizator andreicoman299Coman Andrei andreicoman299 Data 22 mai 2016 22:11:54
Problema Suma si numarul divizorilor Scor 70
Compilator cpp Status done
Runda Arhiva educationala Marime 1.44 kb
#include <stdio.h>
#include <stdlib.h>
#define MOD 9973

inline long long multiply(long long a, long long n){
    long long p=0LL;
    while(n>0){
        if(n%2==1)
            p=(p+a)%MOD;
        a=(a+a)%MOD;
        n/=2;
    }
    return p;
}

inline long long exponentiate(long long a, long long n){
    long long p=1LL;
    while(n>0){
        if(n%2==1)
            p=multiply(p, a);
        a=multiply(a, a);
        n/=2;
    }
    return p;
}

int main(){
    int n, i;
    FILE*fi,*fo;
    fi=fopen("ssnd.in","r");
    fo=fopen("ssnd.out","w");
    fscanf(fi,"%d", &n);
    for(i=0;i<n;i++){
        long long x;
        fscanf(fi,"%lld", &x);
        long long div=2;
        long long numdiv=1;
        long long sumdiv=1;
        while(div*div<=x){
            if(x%div==0){
                long long b=div%MOD, exp=1;
                while(x%div==0){
                    b=multiply(b, div);
                    exp++;
                    x/=div;
                }
                numdiv=multiply(numdiv, exp);
                sumdiv=multiply(multiply(sumdiv, b-1), exponentiate(div-1, MOD-2));
            }
            div++;
        }
        if(x>1){
            numdiv=(numdiv*2)%MOD;
            sumdiv=multiply(multiply(sumdiv, exponentiate(x, 2)-1), exponentiate(x-1, MOD-2));
        }
        fprintf(fo,"%lld %lld\n", numdiv, sumdiv);
    }
    fclose(fi);
    fclose(fo);
    return 0;
}