C++编程第29题

//给一个不多于5位的正整数，
//要求：一、求它是几位数，二、逆序打印出各位数字。

#include <iostream>

using namespace std;

int main()
{
    int a,b,c,d,e,x;
    cout<<"Please input the number ";
    cin>>x;
    a=x/10000;
    b=(x/1000)%10;
    c=(x/100)%10;
    d=(x/10)%10;
    e=x%10;
    if(a!=0){
        cout<<"The length of the number is 5"<<endl;
        cout<< e << d << c << b << a << endl ;
    }else if(b!=0){
        cout<<"The length of the number is 4"<<endl;
        cout<< e << d << c << b << endl ;
    }else if(c!=0){
        cout<<"The length of the number is 3"<<endl;
        cout<< e << d << c << endl ;
    }else if(d!=0){
        cout<<"The length of the number is 2"<<endl;
        cout<< e << d << endl ;
    }else{
        cout<<"The length of the number is 1"<<endl;
        cout<< e << endl ;
    }
    return 0;
}


运行结果为