无聊(￣、￣)

#include <bits/stdc++.h> 
using namespace std;
#define ll long long
ll a[3];
int main(){
    cin>>a[1]>>a[2];
    sort(a+1,a+3);
    cout<<a[1]<<" "<<a[2];
    return 0;
}

#include <bits/stdc++.h> 
using namespace std;
#define ll long long
ll a[3];
int main(){
    cin>>a[1]>>a[2];
    sort(a+1,a+3);
    cout<<a[1]<<" "<<a[2];
    return 0;
}

用sort

#include<bits/stdc++.h>
using namespace std;
int a[3];
int main()
{
    cin>>a[1]>>a[2];
    sort(a+1,a+3);
    cout<<a[1]<<" "<<a[2];
    return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int c , v;
    cin >> c >> v;
    cout << min(c,v) << " " << max(c,v);
    return 0;
}

//能给个赞吗❤️

#include <bits/stdc++.h>
using namespace std;
int main(){
    int a,b;cin >> a >> b;
    if(a > b)cout << b << " " << a;
    else{
        cout << a << " "<< b;
    }
    return 0;
}

#include<bits/stdc++.h>
using namespace std;
int main()
{
    int a,b;
    cin>>a>>b;
    cout<<min(a,b)<<" "<<max(a,b);
    return 0;
}

自己看吧，挺简单的，只不过要注意有空格。

#include <iostream>
using namespace std;
int a, b;

int main()
{
    cin >> a >> b;
    if (a > b)
    {
        cout << b << " " << a;
    }
    else
    {
        cout << a << " " << b;
    }
    return 0;
}