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22 lines
356 B
C++
22 lines
356 B
C++
#include<bits/stdc++.h>
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using namespace std;
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int gcd(int a, int b) {
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if(b == 0) {
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return a;
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}
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return gcd(b, a%b);
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}
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int main() {
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int t;
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cin >> t;
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while(t--) {
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int ax, ay, bx, by;
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cin >> ax >> ay >> bx >> by;
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cout << (gcd(abs(ax-bx), abs(ay-by)) == 1 ? "no" : "yes") << endl;
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}
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return 0;
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}
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