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OI-codes/Luogu/P7885/P7885.cpp

17 lines
318 B
C++

#include <bits/stdc++.h>
using namespace std;
long long t, a, b, c, d, x, y, k;
int main() {
cin >> t;
while (t--) {
cin >> a >> b >> c >> d;
x = abs(a - c);
y = abs(b - d);
cout << max(x, y) * 2 - !(x % 2 == 0 && y % 2 == 0 || x % 2 && y % 2) << endl;
}
return 0;
}