From 00d4f8cfd17946966812675c05b8b22a22f90525 Mon Sep 17 00:00:00 2001
From: HeNine <>
Date: Thu, 7 Dec 2023 08:35:25 +0100
Subject: [PATCH] D4y Se7en

---
 day07/data/input100.txt |    5 +
 day07/data/input101.txt | 1000 +++++++++++++++++++++++++++++++++++++++
 day07/task1.py          |   56 +++
 day07/task2.py          |   62 +++
 4 files changed, 1123 insertions(+)
 create mode 100644 day07/data/input100.txt
 create mode 100644 day07/data/input101.txt
 create mode 100644 day07/task1.py
 create mode 100644 day07/task2.py

diff --git a/day07/data/input100.txt b/day07/data/input100.txt
new file mode 100644
index 0000000..b748378
--- /dev/null
+++ b/day07/data/input100.txt
@@ -0,0 +1,5 @@
+32T3K 765
+T55J5 684
+KK677 28
+KTJJT 220
+QQQJA 483
\ No newline at end of file
diff --git a/day07/data/input101.txt b/day07/data/input101.txt
new file mode 100644
index 0000000..8cc748c
--- /dev/null
+++ b/day07/data/input101.txt
@@ -0,0 +1,1000 @@
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\ No newline at end of file
diff --git a/day07/task1.py b/day07/task1.py
new file mode 100644
index 0000000..7b157a6
--- /dev/null
+++ b/day07/task1.py
@@ -0,0 +1,56 @@
+ORDERING = "123456789TJQKA"
+
+
+def do_task(infile):
+    hands = [(line.split()[0], int(line.split()[1])) for line in infile.split("\n")]
+
+    hands_parsed = []
+
+    for hand, value in hands:
+        cards = dict(zip("123456789TJQKA", [0] * len(ORDERING)))
+        for card in hand:
+            cards[card] += 1
+        hands_parsed.append((hand, value, cards))
+
+    hands_parsed.sort(key=evaluate_hand)
+
+    score_sum = 0
+
+    for rank, (_, score, _) in enumerate(hands_parsed, start=1):
+        score_sum += rank * score
+
+    return score_sum
+
+
+def evaluate_hand(h):
+    (hand, _, cards) = h
+
+    cv = max(cards.values()) << 4
+
+    if cv == 0x30:
+        if 2 in cards.values():
+            cv += 1
+
+    if cv == 0x20:
+        pair_count = 0
+        for v in cards.values():
+            if v == 2:
+                pair_count += 1
+        cv += 1 if pair_count == 2 else 0
+
+    for card in hand:
+        cv <<= 4
+        cv += ORDERING.index(card)
+
+    return cv
+
+
+with open("day07/data/input100.txt") as infile:
+    result = do_task(infile.read())
+    print(result)
+    print(result == 6440)
+
+with open("day07/data/input101.txt") as infile:
+    result = do_task(infile.read())
+    print(result)
+    print(result == 256448566)
diff --git a/day07/task2.py b/day07/task2.py
new file mode 100644
index 0000000..245ec21
--- /dev/null
+++ b/day07/task2.py
@@ -0,0 +1,62 @@
+ORDERING = "J123456789TQKA"
+
+
+def do_task(infile):
+    hands = [(line.split()[0], int(line.split()[1])) for line in infile.split("\n")]
+
+    hands_parsed = []
+
+    for hand, value in hands:
+        cards = dict(zip("123456789TQKA", [0] * len(ORDERING)))
+        j = 0
+        for card in hand:
+            if card != "J":
+                cards[card] += 1
+            else:
+                j += 1
+        hands_parsed.append((hand, value, cards, j))
+
+    hands_parsed.sort(key=evaluate_hand)
+
+    score_sum = 0
+
+    for rank, (_, score, _, _) in enumerate(hands_parsed, start=1):
+        score_sum += rank * score
+
+    return score_sum
+
+
+def evaluate_hand(h):
+    (hand, _, cards, j) = h
+
+    cv = max(cards.values()) << 4
+
+    if cv == 0x30:
+        if 2 in cards.values():
+            cv += 1
+
+    if cv == 0x20:
+        pair_count = 0
+        for v in cards.values():
+            if v == 2:
+                pair_count += 1
+        cv += pair_count == 2
+
+    cv += j << 4
+
+    for card in hand:
+        cv <<= 4
+        cv += ORDERING.index(card)
+
+    return cv
+
+
+with open("day07/data/input100.txt") as infile:
+    result = do_task(infile.read())
+    print(result)
+    print(result == 5905)
+
+with open("day07/data/input101.txt") as infile:
+    result = do_task(infile.read())
+    print(result)
+    print(result == 254412181)