Cod sursa(job #2000486)

Utilizator Rodik_RodyRodica Vasilescu Rodik_Rody Data 13 iulie 2017 20:07:58
Problema Suma si numarul divizorilor Scor 0
Compilator c Status done
Runda Arhiva educationala Marime 1.17 kb
#include <stdio.h>
#include <stdlib.h>
#define File_in "ssnd.in"
#define File_out "ssnd.out"
#define MAX 1000000000
char ciur[MAX];
int nr_div (int n){
    int nr = 2,i;
    if(n == 1 || n == 0 )
        return 1;
    for ( i= 2; i * i < n; i++ )
        if( n % i == 0)
            nr += 2;
     if ( i * i == n)
        nr++;
     return nr;
}
int sum_div (int n){
    int s = 1+ n ,i;
    if(n == 1 || n == 0 )
        return n;
    for ( i= 2; i * i < n; i++ )
        if( n % i == 0){
            s += i + n/i;
            s%=9973;
        }
     if ( i * i == n)
        s+=i;
     return s%9973;
}
int main()
{
    freopen(File_in, "r", stdin);
    freopen(File_out, "w", stdout);
    int t,i,j,k,n,nr;
    scanf("%d",&t);
    ciur[1]=1;
    for ( i = 2; i*i <= 100000000; i++){
        if( ciur[i] == 0)
            for(j= i*i; j<= n; j +=i)
                ciur[j] = 1;
    }
    for ( i = 1; i <= t; i++)
    {
        scanf("%d",&n);
        if(ciur[n]==0)
            printf("2 %d\n",1+n);
        else
            if(n!=1)
                printf("%d %d\n", nr_div(n), sum_div(n));
        else printf("1 1\n");
    }

    return 0;
}