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-rw-r--r--2021/01/Makefile8
-rw-r--r--2021/01/input2000
-rw-r--r--2021/01/puzzles.py13
3 files changed, 2021 insertions, 0 deletions
diff --git a/2021/01/Makefile b/2021/01/Makefile
new file mode 100644
index 0000000..9f0c9fb
--- /dev/null
+++ b/2021/01/Makefile
@@ -0,0 +1,8 @@
+all:
+ sed '/# START PART 2/,/# END PART 2/d' puzzles.py >puzzle-1.py
+ sed '/# START PART 1/,/# END PART 1/d' puzzles.py >puzzle-2.py
+ chmod +x puzzle-[12].py
+
+.PHONY: clean
+clean:
+ rm -f puzzle-[12].py
diff --git a/2021/01/input b/2021/01/input
new file mode 100644
index 0000000..b449fef
--- /dev/null
+++ b/2021/01/input
@@ -0,0 +1,2000 @@
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diff --git a/2021/01/puzzles.py b/2021/01/puzzles.py
new file mode 100644
index 0000000..0a894ca
--- /dev/null
+++ b/2021/01/puzzles.py
@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+
+def main() -> None:
+ with open("input", "r") as f:
+ nums = [int(n) for n in f.readlines()]
+
+ # START PART 2
+ nums = [nums[i] + nums[i - 1] + nums[i - 2] for i in range(2, len(nums))]
+ # END PART 2
+ print(sum(nums[i] > nums[i - 1] for i in range(1, len(nums))))
+
+if __name__ == "__main__":
+ main()