十进制转二进制

解题思路:

注意事项:

参考代码:

#include<iostream>
using namespace std;
#include<stack>
stack<char> s;
int main()
{
    int n;
    char a[3]="01";
    while(cin>>n){
        int t;
        t=n;
        if(n==0) s.push(a[0]);
        if(n<0) n=-n;
        while(n>0) {
            s.push(a[n%2]);
            n/=2;
        }
        cout<<t<<"-->";
        if(t<0) cout<<"-";
        while(!s.empty()){
                cout<<s.top();
                s.pop();   
        }
        cout<<endl;
    }
    return 0;
}