Please explain

Battreship (also Battleships or Sea Battle) is a guessing game for two players. One player set positions of battleships in an array (greyed squares). Second player is guessing the positions of the ships (crosses in squares). Assume that in C program there are following declarations and definitions: \#include stdio. h \#include string.h \#define 10 \#define Y 10 const char* ship_names[] = { "none", "battleship", "cruiser", "destroyer", "submarine" \}; typedef struct_Field \{ char "ship_name; int hit; \} Field; a) Define function void setEmpty() which takes as a parameter two-dimensional array of Field and sets member fields for each array element. Address stored in variable ship name should be set to address of "none" from ship_names array (HINT: Field ship_name must not need to be dynamically allocatedI). Field hit should be set to . Example usage: Field sea [X][Y] setEmpty(sea); b) Define function const char* hitField() which takes as parameter two dimensional array of Field, row number as integer value and column as a character (see the function call in example). Function should check whether row and column parameters are in range of array size (range 1-10 for rows and ' A ' - J ' for columns, assume only uppercase letters). Function set hit value of selected array element to 1 and return ship_name address value. Example usage: puts (hitfield(sea, 1, 'A'))