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-rw-r--r--1.in2000
-rw-r--r--1.py5
-rw-r--r--utils.py15
3 files changed, 2020 insertions, 0 deletions
diff --git a/1.in b/1.in
new file mode 100644
index 0000000..94adc1c
--- /dev/null
+++ b/1.in
@@ -0,0 +1,2000 @@
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diff --git a/1.py b/1.py
new file mode 100644
index 0000000..f439f46
--- /dev/null
+++ b/1.py
@@ -0,0 +1,5 @@
+from utils import sliding_window
+
+inp: list[int] = [int(l.strip()) for l in open('1.in')]
+print(sum(s[1] > s[0] for s in sliding_window(inp, 2)))
+print(sum(s[3] > s[0] for s in sliding_window(inp, 4)))
diff --git a/utils.py b/utils.py
new file mode 100644
index 0000000..d322ed0
--- /dev/null
+++ b/utils.py
@@ -0,0 +1,15 @@
+from collections import deque
+from collections.abc import Iterable, Iterator, Generator
+from itertools import islice
+from typing import TypeVar
+
+T = TypeVar('T')
+def sliding_window(iterable: Iterable[T], n: int) -> Generator[tuple[T, ...], None, None]:
+ # sliding_window('ABCDEFG', 4) -> ABCD BCDE CDEF DEFG
+ it: Iterator[T] = iter(iterable)
+ window: deque[T] = deque(islice(it, n), maxlen=n)
+ if len(window) == n:
+ yield tuple(window)
+ for x in it:
+ window.append(x)
+ yield tuple(window)
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-12-26 19:09:07 +0000