New type called stack that points to a structure named stacknode that will consist of two parts, data and next which contain real number and pointer to the next stacknode structure, respectively.

typedef $\_\_\_\_\_\{$

$\_\_\_\_\_\_\_$

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$\}\_\_\_\_\_\_\_$ New type called tarver that will consist of two parts, part$1$ and part$2,$ which contain an integer and a real number, respectively.

typedef struct $\{$

$\_\_\_\_\_$

$\_\_\_\_$

$\}\_\_\_$