So, at before the assignment r is as follows. So, you have x 0 0 x xy 0 0 and x y 1 1 left bottom on the right top, and s is uninitialized it has just been declared, but the no value has been assign it.
परंतु r च्या प्रत्येक फील्ड च्या प्रत्येक व्हेरिएबल ला व्हॅल्यू इनिशिलाईझ केल्यानंतर जर आपण s = r असे लिहिले तरच s च्या प्रत्येक फील्ड च्या व्हेरिएबल ला दिली जाईल.