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#include "XY.h"
XY XY::operator - () const {
return XY {
.x = -x,
.y = -y,
};
}
XY XY::operator + (const XY & rhs) const {
return XY {
.x = x + rhs.x,
.y = y + rhs.y,
};
}
XY XY::operator - (const XY & rhs) const {
return XY {
.x = x - rhs.x,
.y = y - rhs.y,
};
}
XY& XY::operator += (const XY & rhs) {
this->x += rhs.x;
this->y += rhs.y;
return *this;
}
XY& XY::operator -= (const XY & rhs) {
this->x -= rhs.x;
this->y -= rhs.y;
return *this;
}
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