Here you will find solutions of many problems on spoj. If you want solution of some problem which is not listed in blog or have doubt regarding any spoj problem (which i have solved) or any programming concept (data structure) you can mail me @ raj.nishant360@gmail.com

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Monday, February 24, 2014

MAIN12B-PrimeFactorofLCM

PrimeFactorofLCM

below given code is for main12b spoj or PrimeFactorofLCM spoj.
#include <stdio.h>
#include <iostream>
#include <cmath>
#include <stdlib.h>
#include <bitset>
#include <map>
using namespace std;
bitset <1000009> p;
int size;
int prime[1000000];

 void sieve()
 {
  size=0;
  long long i,j;
  p.set(0,1);
  p.set(1,1);
  prime[size++]=2;
  for(i=3;i<1000001;i=i+2){
     if(!p.test(i)){
          prime[size++]=i;
         for(j=i;j*i<1000001;j++){
            p.set(j*i,1);
        }
    }
}
}
int main()
{
 int t;
 sieve();
 scanf("%d",&t);
 int c=1;
 while(t--)
 {
  int n,j;
  int p[1000009]={0};
  scanf("%d",&n);
  int i,check=0,count=0;
  long long temp;
  map<long long ,int >mp;
  map<long long,int> :: iterator t;
  for(i=0;i<n;i++)
  {
   scanf("%lld",&temp);
   for(j=0;(j<size) && (prime[j]*prime[j]<=temp);j++)
   {
    check=0;
    while(temp%prime[j]==0)
    {
     temp/=prime[j];
     check=1;
    }
    if(check)
     mp[prime[j]]=1;
   }
   if(temp>0 && temp!=1)
    mp[temp]=1;
  }
  printf("Case #%d: %d\n",c,mp.size());
    for(t=mp.begin();t!=mp.end();t++)
        printf("%lld\n",(*t).first);
        c++;
 }
 return 0;
}

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