solution

app/main.py

@@ -2,44 +2,69 @@
 
 
 class Deck:
-    def __init__(self, row: int, column: int, is_alive: bool = True) -> None:
+    def __init__(
+            self,
+            row: int,
+            column: int,
+            is_alive: bool = True
+    ) -> None:
         self.row = row
         self.column = column
         self.is_alive = is_alive
 
 
 class Ship:
-    def __init__(self, start: Tuple[int, int], end: Tuple[int, int], is_drowned: bool = False) -> None:
+    def __init__(
+            self,
+            start: Tuple[int, int],
+            end: Tuple[int, int],
+            is_drowned: bool = False
+    ) -> None:
         self.start = start
         self.end = end
         self.is_drowned = is_drowned
         self.decks = []
-        # Create decks and save them to a list `self.decks`
-        pass
 
-    def get_deck(self, row, column):
-        # Find the corresponding deck in the list
-        pass
+        if start[1] != end[1]:
+            for col in range(start[1], end[1] + 1):
+                self.decks.append(Deck(start[0], col))
+        elif start[0] != end[0]:
+            for row in range(start[0], end[0] + 1):
+                self.decks.append(Deck(row, start[1]))
+        else:
+            self.decks.append(Deck(start[0], end[1]))
 
-    def fire(self, row, column):
+    def get_deck(self, row: int, column: int) -> Deck:
+        for deck in self.decks:
+            if deck.row == row and deck.column == column:
+                return deck
 
-        # Change the `is_alive` status of the deck
-        # And update the `is_drowned` value if it's needed
-        pass
+    def fire(self, row: int, column: int) -> None:
+        self.get_deck(row, column).is_alive = False
+        self.is_drowned = all([not deck.is_alive for deck in self.decks])
 
 
 class Battleship:
-    def __init__(self, ships):
-        self.ships = ships
-        # Create a dict `self.field`.
-        # Its keys are tuples - the coordinates of the non-empty cells,
-        # A value for each cell is a reference to the ship
-        # which is located in it
-        pass
-
-    def fire(self, location: tuple):
-        # This function should check whether the location
-        # is a key in the `self.field`
-        # If it is, then it should check if this cell is the last alive
-        # in the ship or not.
-        pass
+    def __init__(self, ships: list) -> None:
+        self.field = {}
+
+        for ship in ships:
+            unit = Ship(ship[0], ship[1])
+            if ship[0][0] != ship[1][0]:
+                for row in range(ship[0][0], ship[1][0] + 1):
+                    self.field[(ship[0][1], row)] = unit
+            elif ship[0][1] != ship[1][1]:
+                for col in range(ship[0][1], ship[1][1] + 1):
+                    self.field[(ship[0][0], col)] = unit
+            else:
+                self.field[ship[0]] = unit
+
+    def fire(self, location: tuple) -> str:
+        if location not in self.field:
+            return "Miss!"
+        if location in self.field:
+            self.field[location].fire(location[0], location[1])
+            if self.field[location].is_drowned:
+                return "Sunk!"
+            else:
+                return "Hit!"