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#4485: 哪裡錯????


josephlai12345 (littleBiRd)

. Unfinished! | From: [125.225.100.102] | 發表日期: 2010-11-02 22:55

#include <iostream>
using namespace std;
int main()
{
    int a;
  
   while(cin>>a)
   {
    if(a==2)
    cout<<"質數"<<"\n";
   
    else if((a%2!=0&a%3!=0&a%5!=0))
    cout<<"質數"<<"\n";
   
    else
    cout<<"非質數"<<"\n";


}
   
   
return 0;
}

#4836: Re:哪裡錯????


hchs9910734 (雨昕)

. Unfinished! | From: [123.110.101.148] | 發表日期: 2011-02-01 12:02

#include
using namespace std;
int main()
{
    int a;
  
   while(cin>>a)
   {
    if(a==2)
    cout<<"質數"<<"\n";
   
    else if((a%2!=0&a%3!=0&a%5!=0))
    cout<<"質數"<<"\n";
   
    else
    cout<<"非質數"<<"\n";


}
   
   
return 0;
}

EX.  When a=49 

a%2 a%3 a%5 皆!=0

BUT 49 不是質數 

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