#include<bits/stdc++.h> using namespace std; int main(){ int x,y; cin >> x >> y; for(int i =1 ;i <= x;i++){ if(i*2 + (x-i)*4 == y){ cout << i << endl << x-i; } } return 0; }

#include <bits/stdc++.h> using namespace std; int main(){ int t,jio; cin>>t>>jio; int tu=(jio-2*t)/2; int kun=t-tu; cout<<kun<<endl<<tu; return 0; }

鸡兔同笼逻辑分析（不会鸡兔同笼的同学有福啦！！！） #include <bits/stdc++.h> using namespace std; int main(){ int n,y; cin>>n>>y; int jiao =n*2; int duo=y-jiao; int tu=duo/2; int ji=n-tu; cout<<ji<<endl<<tu; return 0; }

#include<iostream> using namespace std; int main() { int a; int b; int c; int d; int f; int e; int g; cin >>a>>b; d=a2; c=a4; e=c-b; f=e/2; g=a-f; cout<<f<<endl; cout<<g; return 0; }

#include<iostream> using namespace std; int main(){ int x,y,a; cin>>x>>y; a=(4*x-y)/(4-2);鸡的数量 cout<<a<<endl<<x-a; return 0; }

#include<iostream> using namespace std; int main(){ int x,y; cin>>x>>y; int sum=0; sum+=4*x; sum=(sum-y)/2; cout<<sum<<endl<<x-sum; }

#include<iostream> using namespace std; int main(){ int a,b,c,d; cin>>a>>b; for(int i=1;i<=a;i++){ c=i; d=a-c; if(c2+d4==b){ cout<<c<<endl<<d; return 0; } } return 0; }

#include<bits/stdc++.h> using namespace std; int main(){ int x,y,n,m; cin>>x>>y; cout<<(x4-y)/2<<endl; cout<<x-((x4-y)/2); }

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

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