#include<bits/stdc++.h>
using namespace std;
signed main(){
	int n,m;
	cin>>n>>m;
	cout<<(4*n-m)/2<<' '<<(m-2*n)/2;
}

直接当个数学题干：

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int x,y;
	cin>>x>>y;
	cout<<(x*4-y)/2<<' '<<x-(x*4-y)/2;
	return 0;
}

第一次交写反了。

#include<bits/stdc++.h>
#define int long long
#define INF 0x3f3f3f
using namespace std;
int x,y;
signed main(){
	cin>>x>>y;
	cout<<x-y/2+x<<" "<<y/2-x;
	return 0;
}

C++ :

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int h,f,c,r;
	cin>>h>>f;
	for(c=1;c<=h;c++)
	{
		r=h-c;
		if(r*4+c*2==f)
		{
			cout<<c<<' '<<r;
			break;
		}
	}
	return 0;
}

Python :

# coding=utf-8
x,y=input().split()
x=int(x)
y=int(y)
tu=0
while tu<x:
    ji=x-tu
    if ji*2+tu*4 == y:
        print(ji,tu)
    tu=tu+1