高*低

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#include<iostream> #include<vector> using namespace std; int main(){     string a;     int sam=0,b;     cin>>a>>b;     vector<int> c,d;     for(int i=a.size()-1;i>-1;i--){         c.push_back(a[i]-'0');     }     for(int i=0;i<a.size()||sam!=0;i++){         if(i>=a.size()){             c[i]=0;         }         sam=c[i]*b+sam;                 d.push_back(sam%10);            sam/=10;                    }                               while(d.size()>1&&d.back()==0){         d.pop_back();     }     for(int i=d.size()-1;i>=0;i--){         cout<<d[i];     }     return 0; }