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30
Luogu/P2520/P2520.cpp
Normal file
30
Luogu/P2520/P2520.cpp
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#include <iostream>
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#include <algorithm>
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using std::cin;
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using std::cout;
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const char endl = '\n';
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int t, a, b, x, y;
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int main() {
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std::ios::sync_with_stdio(false);
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cin.tie(nullptr);
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cin >> t;
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while (t--) {
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cin >> a >> b >> x >> y;
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int g = std::__gcd(a, b) * 2;
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a %= g, b %= g, x %= g, y %= g;
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auto check = [&](int x, int y) -> bool {
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return x % g == 0 && y % g == 0;
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};
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cout << (check(x, y) || check(x + a, y + b) || check(x + b, y + a) || check(x + a + b, y + a + b) ? "Y" : "N") << endl;
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}
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return 0;
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}
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