蓝桥杯算法提高VIP-乘法运算 （C++代码）

#include<iostream>
#include<iomanip>
using namespace std;
int main(){
    int a,b;
    while(cin>>a>>b){
        cout<<right<<setw(4)<<a<<endl;
        if(b/10==0){
            cout<<"×"<<right<<setw(2)<<b<<endl;
            cout<<"━━━"<<endl;
            cout<<right<<setw(4)<<a*b<<endl;
        }
        else{
            cout<<"×"<<right<<setw(2)<<b<<endl;
            cout<<"━━━"<<endl;
            if(b%10==0){
                printf("  00\n");
            }
            else{
                cout<<right<<setw(4)<<a*(b%10)<<endl;
            }
            cout<<right<<setw(3)<<a*(b/10)<<endl;
            cout<<"━━━"<<endl;
            cout<<right<<setw(4)<<a*b<<endl;
        }
        
        
    }
    return 0;
}