Submission #3667139

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;
typedef signed long long ll;

#undef _P
#define _P(...) (void)printf(__VA_ARGS__)
#define FOR(x,to) for(x=0;x<(to);x++)
#define FORR(x,arr) for(auto& x:arr)
#define ITR(x,c) for(__typeof(c.begin()) x=c.begin();x!=c.end();x++)
#define ALL(a) (a.begin()),(a.end())
#define ZERO(a) memset(a,0,sizeof(a))
#define MINUS(a) memset(a,0xff,sizeof(a))
//-------------------------------------------------------

ll X,Y;

void solve() {
	int i,j,k,l,r,x,y; string s;
	
	cin>>X>>Y;
	if((X+Y)%4) return _P("No\n");
	if(X>Y) swap(X,Y);
	ll a=(Y-X)/2;
	if(X>=a && Y>=3*a) {
		X-=a;
		Y-=3*a;
	}
	else return _P("No\n");
	
	if(X%4==0 && Y%4==0) return _P("Yes\n");
	else return _P("No\n");
	
}


int main(int argc,char** argv){
	string s;int i;
	if(argc==1) ios::sync_with_stdio(false), cin.tie(0);
	FOR(i,argc-1) s+=argv[i+1],s+='\n'; FOR(i,s.size()) ungetc(s[s.size()-1-i],stdin);
	cout.tie(0); solve(); return 0;
}

Submission Info

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