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  1. #include<iostream>
  2. using namespace std;
  3. int a,b,idk;
  4. void fact(int x)
  5. {
  6.   int ct=0;
  7.   cout<<x<<'=';
  8.   while(x%2==0||x%3==0||x%5==0)
  9.   {
  10.     if(x%2==0)
  11.     {
  12.       x/=2;
  13.       cout<<2;
  14.       if(x==1)
  15.       {
  16.         break;
  17.       }
  18.     }
  19.     else if(x%3==0)
  20.     {
  21.       x/=3;
  22.       cout<<3;
  23.       if(x==1)
  24.       {
  25.         break;
  26.       }
  27.     }
  28.     else if(x%5==0)
  29.     {
  30.       x/=5;
  31.       cout<<5;
  32.       if(x==1)
  33.       {
  34.         break;
  35.       }
  36.     }
  37.     cout<<'*';
  38.   }
  39.   if(x==1)
  40.   {
  41.     cout<<endl;
  42.     return;
  43.   }
  44.   cout<<x<<endl;
  45.   return;
  46. }
  47. int main()
  48. {
  49.   cin>>a>>b;
  50.   for(int i=a;i<=b;i++)
  51.   {
  52.     fact(i);
  53.   }
  54.   return 0;
  55. }
Success #stdin #stdout 0.01s 5476KB
comments (?)
stdin
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3 10
stdout
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3=3
4=2*2
5=5
6=2*3
7=7
8=2*2*2
9=3*3
10=2*5
https://ideone.com/kt8wQn
这个不是对的吗？？！
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
public

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