c_cpp 重新排列二进制字符串作为备用x和y出现

Posted 2021-05-14

#include <bits/stdc++.h>
using namespace std;

int main(){
    string s;
    cin >> s;
    long int n = s.size();
    int a = stoi(s);

    int count0=0,count1=0;
    while(n>0){
        if (a%10 == 0)
            count0++;
        else
            count1++;
        a/=10;
        n--;
    }
    s = "";
    while(count0!=0 && count1!=0){
        s.append("0");
        count0--;
        s.append("1");
        count1--;
    }
    while(count0!=0){
        s.append("0");
        count0--;
    }
    while (count1!=0){
        s.append("1");
        count1--;
    }
    cout<<s;
}