chore: import upstream snapshot with attribution

curriculum/challenges/english/blocks/daily-coding-challenges-python/6a22d77ddf034bc4e35b1d54.md

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+---
+id: 6a22d77ddf034bc4e35b1d54
+title: "Challenge 347: Game Theory"
+challengeType: 29
+dashedName: challenge-347
+---
+
+# --description--
+
+Given two equal length strings representing two players' strategies for a game, return the scores as an array `[player1, player2]`.
+
+- The given strings will only contain one of two letters: `"C"` (cooperate) or `"D"` (defect).
+- Each character represents one round, scored as follows:
+  - If both players cooperate, each scores 3.
+  - If both players defect, each scores 1.
+  - If one player defects and the other cooperates, the defector scores 5 and the cooperator scores 0.
+
+# --hints--
+
+`play_game("CCCC", "CCCC")` should return `[12, 12]`.
+
+```js
+({test: () => { runPython(`
+from unittest import TestCase
+TestCase().assertEqual(play_game("CCCC", "CCCC"), [12, 12])`)
+}})
+```
+
+`play_game("DDDD", "DDDD")` should return `[4, 4]`.
+
+```js
+({test: () => { runPython(`
+from unittest import TestCase
+TestCase().assertEqual(play_game("DDDD", "DDDD"), [4, 4])`)
+}})
+```
+
+`play_game("CCDD", "CDDD")` should return `[5, 10]`.
+
+```js
+({test: () => { runPython(`
+from unittest import TestCase
+TestCase().assertEqual(play_game("CCDD", "CDDD"), [5, 10])`)
+}})
+```
+
+`play_game("CCCDCDCCCDDC", "CCDDCDCDDCCD")` should return `[24, 34]`.
+
+```js
+({test: () => { runPython(`
+from unittest import TestCase
+TestCase().assertEqual(play_game("CCCDCDCCCDDC", "CCDDCDCDDCCD"), [24, 34])`)
+}})
+```
+
+`play_game("DDCCDDDDCDDCDDDCDD", "CCDCCCDCCCDCCCCDCC")` should return `[66, 21]`.
+
+```js
+({test: () => { runPython(`
+from unittest import TestCase
+TestCase().assertEqual(play_game("DDCCDDDDCDDCDDDCDD", "CCDCCCDCCCDCCCCDCC"), [66, 21])`)
+}})
+```
+
+# --seed--
+
+## --seed-contents--
+
+```py
+def play_game(p1, p2):
+
+    return p1
+```
+
+# --solutions--
+
+```py
+def play_game(p1, p2):
+    scores = [0, 0]
+    for i in range(len(p1)):
+        if p1[i] == 'C' and p2[i] == 'C':
+            scores[0] += 3
+            scores[1] += 3
+        elif p1[i] == 'D' and p2[i] == 'D':
+            scores[0] += 1
+            scores[1] += 1
+        elif p1[i] == 'D' and p2[i] == 'C':
+            scores[0] += 5
+        else:
+            scores[1] += 5
+    return scores
+```