Thursday, 7 January 2016

UVa 10699 - Count the factors

//\\__ hr1212 __//\\

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;
typedef vector<int> vi;
typedef pair<int,int> pii;
typedef map<int,int> mi;

#define si(a) scanf("%d",&a)
#define sii(a,b) scanf("%d %d",&a,&b)
#define siii(a,b,c) scanf("%d %d %d",&a,&b,&c)
#define pi(a) printf("%d\n",a)
#define nl printf("\n");
#define pb push_back
#define mp make_pair
#define all(c) (c).begin(),(c).end()
#define f(i,a,b) for(i=a;i<b;i++)
#define rf(i,a,b) for(i=a;i>=b;i--)
#define clr(x,a) memset(x,a,sizeof(x))
#define MAX 1000100
#define MOD 1000000007

int n,m,a[MAX];

int main(){
    int r,k,i,c=0,x=0,y=0,j,t,l,z,x1=0,y1=0;
    ll ans=0;string p;

    f(i,2,MAX){
        if(!a[i]){
            for(j=2*i;j<MAX;j+=i)
                a[j]++;
        }
    }
    f(i,2,MAX)
        if(!a[i])
            a[i]=1;

    while(1){
        si(n);
        if(n==0)
            break;
        printf("%d : %d\n",n,a[n]);
    }
    return 0;
}

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