commit be683b101393d3566261c9cc10351398bd2e1b6c
parent 424ffd61c58eb127f9a657a854737e2d82368217
Author: Sebastiano Tronto <sebastiano@tronto.net>
Date: Sat, 6 Dec 2025 07:57:16 +0100
Day 6 2025 I suck
Diffstat:
4 files changed, 64 insertions(+), 2 deletions(-)
diff --git a/2025/06/a.py b/2025/06/a.py
@@ -1,6 +1,20 @@
import fileinput
+from functools import reduce
+from operator import mul
+a = []
+op = []
with fileinput.input() as lines:
for line in lines:
- ...
+ t = line[:-1].split(' ')
+ if t[0] == '+' or t[0] == '*':
+ op = [x for x in t if x != '']
+ else:
+ a.append([int(x) for x in t if x != ''])
+def sol(a, op, i):
+ return (sum(a[j][i] for j in range(len(a))) if op[i] == '+'
+ else reduce(mul, (a[j][i] for j in range(len(a))), 1))
+
+
+print(sum(sol(a, op, i) for i in range(len(a[0]))))
diff --git a/2025/06/b.py b/2025/06/b.py
@@ -0,0 +1,32 @@
+import fileinput
+from functools import reduce
+from operator import mul
+
+with fileinput.input() as lines:
+ all = list(lines)
+ a = [line[:-1] for line in all[:-1]]
+ op = all[-1][:-1]
+
+def sol(a, j, k):
+ nums = []
+ i = k-2
+ while i >= j:
+ n = 0
+ for r in a:
+ if r[i] != ' ':
+ n = 10*n + int(r[i])
+ nums.append(n)
+ i -= 1
+ return sum(nums) if op[j] == '+' else reduce(mul, nums, 1)
+
+j = 0
+s = 0
+while j < len(op):
+ k = j+1
+ while k < len(op) and op[k] == ' ':
+ k += 1
+ if k >= len(op):
+ k = max(len(r) for r in a)+1
+ s += sol(a, j, k)
+ j = k
+print(s)
diff --git a/2025/README.md b/2025/README.md
@@ -11,6 +11,7 @@ Example
```
Day -Part 1- -Part 2-
+ 6 00:13:38 01:49:24
5 00:04:39 00:22:19
4 00:25:36 00:27:49
3 00:05:02 00:16:09
@@ -69,3 +70,18 @@ Part 2 required a little bit of thinking to handle overlaps correctly
- at first I wrote a solution that did not handle overlaps, then one
that can only handle single overlaps, and finally one that works in
every case. My final solution is quite straightforward.
+
+### Day 6: Trash Compactor
+
+Part 1 was easy, but I struggled with part 2.
+
+I had to solve this while travelling, which did not help, but that was
+not the main issue. The problem was that for whatever reason my script
+did not copy the whitespaces correctly from the sample input in the web
+page, so I was left wondering how the heck am I supposed to align the
+numbers. After more than an hour and after changing train, I figured out
+the error and I was able to solve this elementary school problem. Much
+smart, very accomplishment.
+
+This year so far the only problems that took me more than 30 minutes
+are this and the first one, not exactly the hardest problems imaginable.
diff --git a/README.md b/README.md
@@ -14,4 +14,4 @@ See `year/README.md` for instructions on how to run my code.
|2022| 50 | Rust | Done in 2025 to learn Rust |
|2023| 50 | C | All solved by December 25, 2023 |
|2024| 50 | C++ | Each solved within 24h |
-|2025| 10 | Python | Work in progress... |
+|2025| 12 | Python | Work in progress... |
