\[\boxed{\text{366\ (366).}\text{\ }\text{Еуроки\ -\ ДЗ\ без\ мороки}}\]
\[\textbf{а)}\ y = \left\{ \begin{matrix} x^{2};\ \ x \leq 1 \\ 1;\ \ \ \ x > 1 \\ \end{matrix} \right.\ \]
\[\textbf{б)}\ y = \left\{ \begin{matrix} 4,\ \ \ \ \ \ \ \ \ \ \ 2 < x < - 2 \\ x^{2},\ \ - 2 \leq x \leq 2 \\ \end{matrix} \right.\ \]