From 262d7a7c40f73eb8e0536bbb89686ff225220f88 Mon Sep 17 00:00:00 2001
From: zb5g22 <zb5g22@soton.ac.uk>
Date: Mon, 2 Dec 2024 18:00:11 +0000
Subject: [PATCH] Day 2 part b
---
Day 2/d2b.py | 61 ++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 61 insertions(+)
create mode 100644 Day 2/d2b.py
diff --git a/Day 2/d2b.py b/Day 2/d2b.py
new file mode 100644
index 0000000..326d265
--- /dev/null
+++ b/Day 2/d2b.py
@@ -0,0 +1,61 @@
+# -*- coding: utf-8 -*-
+"""
+Created on Mon Dec 2 12:08:01 2024
+
+@author: zoë
+"""
+
+import numpy as np
+
+
+def run_checks(difference_list):
+ increasing_flag = 0
+ fail_pos = -1
+ for pos in range(len(difference_list)):
+ if difference_list[0] >= 0:
+ increasing_flag = 1
+ if not abs(difference_list[pos]) >= 1:
+ fail_pos = pos
+ break
+ elif not abs(difference_list[pos]) <= 3:
+ fail_pos = pos
+ break
+ elif increasing_flag == 1:
+ if not difference_list[pos] >= 0:
+ fail_pos = pos
+ break
+ else:
+ if not difference_list[pos] < 0:
+ fail_pos = pos
+ break
+ return fail_pos
+
+
+with open("input", "r") as file:
+ data = file.readlines()
+ file.close()
+
+safe_reports = 0
+for report in data:
+ report = report.strip("\n").split(" ")
+ difference_list = []
+ sign_list = []
+ for level in range(len(report) - 1):
+ difference_list.append(int(report[level + 1]) - int(report[level]))
+ fail_pos = run_checks(difference_list)
+ if fail_pos == -1:
+ safe_reports += 1
+ else:
+ for attempt in range(len(report)):
+ mod_report = report.copy()
+ del mod_report[attempt]
+ difference_list = []
+ for level in range(len(mod_report) - 1):
+ difference_list.append(int(mod_report[level + 1])
+ - int(mod_report[level]))
+ try_success = run_checks(difference_list)
+ if try_success == -1:
+ safe_reports += 1
+ break
+
+print(f"Number of safe and dampened reports: {safe_reports}")
--
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