消息#Boolean 39

#Boolean 39 #include <iostream> #include <cmath> using namespace std; int main (){ int x1, y1, x2, y2; bool a; cout << "x1 = "; cin >> x1; cout << "y1 = "; cin >> y1; cout << "x2 = "; cin >> x2; cout << "y2 = "; cin >> y2; a = abs(x1 - x2) == abs(y1 - y2) and ((x1==x2 && y1!=y2) or (y1==y2 && x1!=x2)); cout << boolalpha << a << endl; return 0; }