象棋判断

清风

#include <iostream>
#include <math.h>
using namespace std;
int main(){
	int a,b,c,d,e;
	cin>>a>>b>>c>>d>>e;
	if (a==1){
		if (b==d\\c==e){
			cout<<"yes"<<endl;
		}
		else{
			cout<<"no"<<endl;
		}
	}
	else if(a==2){
		cout<<"no"<<endl;
	}
	else if(a==3){
		if((abs(b-d)==1&&abs(c-e)==2)\\(abs(b-d)==2&&abs(c-e)==1)){
			
		}
	}
}