[编程入门]数字的处理与判断-题解（C++代码）

#include<iostream>

using namespace std;

int main()

{

    int i,ge,shi,bai,qian,wan;

    cin>>i;

    if(i>=1&&i<10) 

    {

        cout<<"1"<<endl;

        ge=i%10;

        cout<<ge<<endl;

    } 

    else if(i<100)

    {

        cout<<"2"<<endl;

        ge=i%10;

        shi=i/10;

        cout<<shi<<" "<<ge<<endl;

        cout<<ge<<shi<<endl;

    }

    else if(i<1000)

    {

        cout<<"3"<<endl;

        ge=i%10;

        shi=i/10%10;

        bai=i/10/10;

        cout<<bai<<" "<<shi<<" "<<ge<<endl;

        cout<<ge<<shi<<bai<<endl;

    }

    else if(i<10000)

    {

        cout<<"4"<<endl;

        ge=i%10;

        shi=i%100/10;

        bai=i%1000/100;

        qian=i/1000;

        cout<<qian<<" "<<bai<<" "<<shi<<" "<<ge<<endl;

        cout<<ge<<shi<<bai<<qian<<endl;

    }

    else if(i<100000)

    {

        cout<<"5"<<endl;

        ge=i%10;

        shi=i%100/10;

        bai=i/100%10;

        qian=i/1000%10;

        wan=i/10000;

        cout<<wan<<" "<<qian<<" "<<bai<<" "<<shi<<" "<<ge<<endl;

        cout<<ge<<shi<<bai<<qian<<wan<<endl;

    }

}