From 06d29f38577278ba3eab1bda4ab72690f7445abd Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Juan=20Jos=C3=A9=20Guti=C3=A9rrez=20de=20Quevedo=20P=C3=A9?= =?UTF-8?q?rez?= Date: Fri, 18 Dec 2020 11:14:06 +0100 Subject: [PATCH] add day 18 --- 18/1.py | 29 +++++ 18/2.py | 34 +++++ 18/input | 380 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 443 insertions(+) create mode 100644 18/1.py create mode 100644 18/2.py create mode 100644 18/input diff --git a/18/1.py b/18/1.py new file mode 100644 index 0000000..ff6e4c0 --- /dev/null +++ b/18/1.py @@ -0,0 +1,29 @@ +with open("input") as f: + content = [x.strip().replace(")", " )").replace("(", "( ").split(" ") for x in f] + +def evaluate(expression, startpos): + result = 0 + operator = "+" + number = 0 + i = startpos + while i < len(expression): + number = None + if expression[i] == "(": + number, i = evaluate(expression, i + 1) + elif expression[i] == ")": + return result, i + elif expression[i] in ["*", "+"]: + operator = expression[i] + else: + number = int(expression[i]) + + if number is not None: + if operator == "*": + result *= number + elif operator == "+": + result += number + i += 1 + + return result + +print(sum(map(lambda x: evaluate(x, 0), content))) diff --git a/18/2.py b/18/2.py new file mode 100644 index 0000000..a3fecfa --- /dev/null +++ b/18/2.py @@ -0,0 +1,34 @@ +with open("input") as f: + content = [x.strip().replace(")", " )").replace("(", "( ").split(" ") for x in f] + +def evaluate(expression, startpos): + result = 0 + number = 0 + i = startpos + expression2 = [] + endpos = startpos + while i < len(expression): + number = None + if expression[i] == "(": + number, i = evaluate(expression, i + 1) + elif expression[i] == ")": + endpos = i + break + elif expression[i] == "*": + expression2.append(result) + result = 0 + elif expression[i] != "+": + number = int(expression[i]) + + if number is not None: + result += number + i += 1 + + expression2.append(result) + result = 1 + for e in expression2: + result *= e + + return result, endpos + +print(sum(map(lambda x: evaluate(x, 0)[0], content))) diff --git a/18/input b/18/input new file mode 100644 index 0000000..57bcf50 --- /dev/null +++ b/18/input @@ -0,0 +1,380 @@ +8 * 6 * 6 * 4 * (8 + 5 * 2 + 5 + 6 + 3) * 4 +((8 * 2 * 7 + 6 + 2 * 7) * 8 * (9 + 8 * 9 * 2)) + 8 + 2 * ((8 + 5 * 7 + 8 + 9) + 4 * (4 * 5 + 9 + 6 * 8) + 9 + 6 * 7) * 5 + 7 +(3 * (6 * 4 * 2 * 2 + 3) + 9) + 4 + (6 * 2 + (8 + 4 * 8 * 4 + 8)) + 5 +9 + (4 * 7 + 6) +6 + (3 + (5 + 7 * 5 + 5 * 3 * 7) * 6 * 8 + 5 * 2) + (7 + 9 * 9 + (3 + 9 + 8 + 2 * 6)) * 8 +5 + (7 * 9 + 7) * 8 +6 * (5 * (9 + 8 + 9 + 8 * 5 + 4) * 3 * 8 * 2 + 9) * 5 + 8 * (9 + 3 + 9 + 9 * 6) + 9 +(9 + 8) * 2 + (2 * 3) * 4 + (3 * 7 + 5 + 6 + 8) +3 * ((4 + 9 + 5 + 3) * 9) * 4 + 6 + (9 * 7) * 6 +4 + (3 * 2 + 5 * 9 * 3 + 8) + 4 * 8 * 6 +5 + 6 * 6 * ((9 * 8 + 6 + 8 + 4 + 3) * 9 * 6 * 5 * 4) + (4 + 7 + 6 + 8 + 2 * 6) * ((2 * 3) + (9 * 5 + 3 * 3 + 3 * 5) * 6) +9 + 7 + 8 + (8 + 9 * 4 + 3 + 9 * 4) +(6 * 5) * 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