Redid 2.Multidimensional Lists - Exercise

Author: MitkoVtori

Advanced/2.Multidimensional Lists/2.Multidimensional Lists - Exercise/01. Flatten Lists.py

@@ -1,5 +1,5 @@
-matrix = input().split("|")
+matrix = [nums.split() for nums in input().split("|")]
+[[print(value, end=" ") for value in lst] for lst in matrix[::-1]]
 
-matrix = [char.split() for char in matrix]
 
-[[print(value, end=" ") for value in lst] for lst in matrix[::-1]]
+# [[print(value, end=" ") for value in lst] for lst in [nums.split() for nums in input().split("|")][::-1]]

Advanced/2.Multidimensional Lists/2.Multidimensional Lists - Exercise/02. Matrix Modification.py

@@ -1,29 +1,63 @@
 rows = int(input())
 
-matrix = []
+matrix = [
+    [int(num) for num in input().split()]
+    for row in range(rows)
+]
 
-for row in range(rows):
-    columns = [int(num) for num in input().split()]
-    matrix.append(columns)
+command = input()
+while command != "END":
+    try:
 
-command = input().split()
-while command[0] != "END":
+        operation, row, col, value = command.split()
+        row, col, value = int(row), int(col), int(value)
 
-    row = int(command[1])
-    col = int(command[2])
-    value = int(command[3])
+        if row >= 0 and col >= 0:
 
-    if 0 <= row < len(matrix) and 0 <= col < len(matrix[row]):
+            if operation == "Add":
+                matrix[row][col] += value
 
-        if command[0] == "Add":
-            matrix[row][col] += value
+            elif operation == "Subtract":
+                matrix[row][col] -= value
 
-        elif command[0] == "Subtract":
-            matrix[row][col] -= value
+        else:
+            print("Invalid coordinates")
 
-    else:
-        print("Invalid coordinates")
-
-    command = input().split()
+        command = input()
 
-[print(*row) for row in matrix]
+    except Exception:
+        print("Invalid coordinates")
+        command = input()
+
+[print(" ".join([str(num) for num in line])) for line in matrix]
+
+
+# rows = int(input())
+#
+# matrix = []
+#
+# for row in range(rows):
+#     columns = [int(num) for num in input().split()]
+#     matrix.append(columns)
+#
+# command = input().split()
+# while command[0] != "END":
+#
+#     row = int(command[1])
+#     col = int(command[2])
+#     value = int(command[3])
+#
+#     if 0 <= row < len(matrix) and 0 <= col < len(matrix[row]):
+#
+#         if command[0] == "Add":
+#             matrix[row][col] += value
+#
+#         elif command[0] == "Subtract":
+#             matrix[row][col] -= value
+#
+#     else:
+#         print("Invalid coordinates")
+#
+#     command = input().split()
+#
+# [print(*row) for row in matrix]

Advanced/2.Multidimensional Lists/2.Multidimensional Lists - Exercise/03. Knight Game.py

@@ -1,13 +1,13 @@
 rows = int(input())
 
-pos_knights,  matrix, total_knights = [], [], [0]
+pos_knights, matrix, total_knights = [], [], [0]
 
 for row in range(rows):
 
     matrix.append(list(input()))
 
     for col in range(len(matrix[0])):
-    
+
         if matrix[row][col] == "K":
             pos_knights.append([row, col])
 
@@ -28,7 +28,6 @@ def check_valid_index(row, col):
 
 
 def check_knights():
-
     knights = {}
 
     for row, col in pos_knights: