Submission #64139246

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Source Code Expand

#include <bits/stdc++.h>
using namespace std;

#define FOR(i, a, b) for(int i = (a); i < (b); i++)
#define RFOR(i, a, b) for(int i = (a) - 1; i >= (b); i--)
#define SZ(a) int(a.size())
#define ALL(a) a.begin(), a.end()
#define PB push_back
#define MP make_pair
#define F first
#define S second

typedef long long LL;
typedef vector<int> VI;
typedef vector<LL> VL;
typedef pair<int, int> PII;
typedef pair<LL, LL> PLL;
typedef double db;

const int mod = 998244353;

int add(int a, int b)
{
	return a + b < mod ? a + b : a + b - mod;
}

int sub(int a, int b)
{
	return a - b >= 0 ? a - b : a - b + mod;
}

int mult(int a, int b)
{
	return (LL)a * b % mod;
}

int binpow(int a, LL n)
{
	int res = 1;
	while (n)
	{
		if (n & 1)
			res = mult(res, a);
		a = mult(a, a);
		n /= 2;
	}
	return res;
}

template<typename T>
void updMin(T& a, T b)
{
	a = min(a, b);
}

template<typename T>
void updMax(T& a, T b)
{
	a = max(a, b);
}

const int C = 1e7;

void solve()
{
	int r, b;
	cin >> r >> b;
	if (r % 2 == 1 || (r == 0 && b % 2 == 1))
	{
		cout << "No\n";
		return;
	}
	cout << "Yes\n";
	int x = C, y = C;
	if (r == 0)
	{
		FOR(i, 0, b / 2)
		{
			if (i > 0)
			{
				x++;
				y++;
			}
			cout << "B " << x << " " << y << "\n";
		}
		x--;
		y++;
		FOR(i, 0, b / 2)
		{
			if (i > 0)
			{
				x--;
				y--;
			}
			cout << "B " << x << " " << y << "\n";
		}
		assert(x == C - 1 && y == C + 1);
		return;
	}
	FOR(i, 0, r / 2)
	{
		if (i > 0)
			x++;
		cout << "R " << x << " " << y << "\n";
	}
	y++;
	FOR(i, 0, r / 2)
	{
		if (i > 0)
			x--;
		cout << "R " << x << " " << y << "\n";
	}
	assert(x == C && y == C + 1);
	if (b == 0)
		return;
	int cnt1, cnt2;
	if (b % 2 == 1)
	{
		x--;
		cnt1 = (b + 1) / 2;
		cnt2 = b / 2;
	}
	else
	{
		y++;
		cnt1 = b / 2 + 1;
		cnt2 = b / 2 - 1;
	}
	assert(cnt1 + cnt2 == b);
	FOR(i, 0, cnt1)
	{
		if (i > 0)
		{
			x--;
			y--;
		}
		cout << "B " << x << " " << y << "\n";
	}
	x++;
	y--;
	FOR(i, 0, cnt2)
	{
		if (i > 0)
		{
			x++;
			y++;
		}
		cout << "B " << x << " " << y << "\n";
	}
}

int main()
{
	ios::sync_with_stdio(0); 
	cin.tie(0);
	int t;
	cin >> t;
	while (t--)
		solve();
	return 0;
}

Submission Info

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