feat(day 14): add character battle simultator with alphabett and digit strength logic

Author: JohnSunny21

FreeCodeCamp/CodingQ/CharBattle.py

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+"""
+
+===============================>          Character Battle <=====================================================
+
+Given two strings representing your army and an opposing army, each character from your army battles the character at the same position from the opposing army using the following rules:
+
+Characters a-z have a strength of 1-26, respectively.
+Characters A-Z have a strength of 27-52, respectively.
+Digits 0-9 have a strength of their face value.
+All other characters have a value of zero.
+Each character can only fight one battle.
+For each battle, the stronger character wins. The army with more victories, wins the war. Return the following values:
+
+"Opponent retreated" if your army has more characters than the opposing army.
+"We retreated" if the opposing army has more characters than yours.
+"We won" if your army won more battles.
+"We lost" if the opposing army won more battles.
+"It was a tie" if both armies won the same number of battles.
+
+==================================================================================
+O/P : 
+
+1. battle("Hello", "World") should return "We lost".
+2. battle("pizza", "salad") should return "We won".
+"""
+
+
+
+def getStrength(char):
+
+    if 'a' <= char <= 'z':
+        return ord(char) - ord('a') + 1
+    elif 'A' <= char <= 'Z':
+        return ord(char) - ord('A') + 27
+    elif char.isdigit():
+        return int(char)
+    else:
+        return 0
+    
+
+def battle(my_army,opposing_army):
+
+    if len(my_army) > len(opposing_army):
+        return "Opponent retreated"
+    elif len(my_army) < len(opposing_army):
+        return "We retreated"
+    
+    my_wins = 0
+    opp_wins = 0
+
+    for my_char,opp_char in zip(my_army,opposing_army):
+        my_strength = getStrength(my_char)
+        opp_strength = getStrength(opp_char)
+
+        if my_strength > opp_strength:
+            my_wins += 1
+        elif my_strength < opp_strength:
+            opp_wins += 1
+
+    if my_wins > opp_wins:
+        return "We won"
+    elif opp_wins > my_wins:
+        return "We lost"
+    else: 
+        return "It was a tie"
+
+
+
+# Assuming your battle() function is already defined above
+
+assert battle("Hello", "World") == "We lost"
+assert battle("pizza", "salad") == "We won"
+assert battle("C@T5", "D0G$") == "We won"
+assert battle("kn!ght", "orc") == "Opponent retreated"
+assert battle("PC", "Mac") == "We retreated"
+assert battle("Wizards", "Dragons") == "It was a tie"
+assert battle("Mr. Smith", "Dr. Jones") == "It was a tie"
+
+print("All tests passed!")

FreeCodeCamp/CodingQ/CharBattleTest.py

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+import unittest
+from CharBattle import battle
+
+class TestBattleFunction(unittest.TestCase):
+    def test_we_lost(self):
+        self.assertEqual(battle("Hello","World"), "We lost")
+    
+    def test_we_won_1(self):
+        self.assertEqual(battle("pizza", "salad"), "We won")
+
+    def test_we_won_2(self):
+        self.assertEqual(battle("C@T5", "D0G$"), "We won")
+
+    def test_opponent_retreated(self):
+        self.assertEqual(battle("kn!ght", "orc"), "Opponent retreated")
+
+    def test_we_retreated(self):
+        self.assertEqual(battle("PC", "Mac"), "We retreated")
+
+    def test_tie_1(self):
+        self.assertEqual(battle("Wizards", "Dragons"), "It was a tie")
+
+    def test_tie_2(self):
+        self.assertEqual(battle("Mr. Smith", "Dr. Jones"), "It was a tie")
+
+if __name__ == "__main__":
+    unittest.main()