Submission #1335996

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Source Code Expand

#include <iostream>
#include <cmath>
#include <algorithm>

using namespace std;

int main() {
	long long int a, b, c, d;
	cin >> a >> b >> c >> d;
	long long int x, y;
	x = abs(a - c)+1;
	y = abs(b - d)+1;
	if (x > y) {
		swap(x, y);
	}
	if (y % 2 == x % 2) {
		if (y % 2 == 1) {
			x--;
			y--;
		}
		cout << y << endl;
	}
	else {
		cout << y << endl;
	}
	return 0;
}

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