Add "Bugs on a Log" (#29)

Reviewed-on: #29

src/Warm-Ups/Bugs/main.typ

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+#import "@local/handout:0.1.0": *
+
+#show: handout.with(
+  title: [Warm-Up: Bugs on a Log],
+  by: "Mark",
+)
+
+#problem()
+2013 bugs are on a meter-long line. Each walks to the left or right at a constant speed. \
+If two bugs meet, both turn around and continue walking in opposite directions. \
+What is the longest time it could take for all the bugs to walk off the end of the log?

src/Warm-Ups/Bugs/meta.toml

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+[metadata]
+title = "Bugs on a Log"
+
+[publish]
+handout = true
+solutions = true