View problem - Tracks in the Snow (BOI13_tracks)

Language	Compilation command
C11	/usr/bin/gcc -DEVAL -std=gnu11 -O2 -pipe -static -s -o tracks tracks.c -lm
C++20	/usr/bin/g++ -DEVAL -std=gnu++20 -O2 -pipe -static -s -o tracks tracks.cpp
C++17	/usr/bin/g++ -DEVAL -std=gnu++17 -O2 -pipe -static -s -o tracks tracks.cpp
Java	/usr/bin/javac -encoding UTF-8 tracks.java /bin/sh -c echo "Main-Class: tracks" > __manifest__.txt /bin/sh -c jar cfm tracks.jar __manifest__.txt *.class
Pypy 3	/usr/bin/pypy3 -m compileall -b tracks.py /bin/mv tracks.pyc __main__.pyc /usr/bin/zip tracks.pyz.zip __main__.pyc /bin/mv tracks.pyz.zip tracks.pyz

Time limit	Memory limit	# of submissions	# of submitted users	Solved #	Accepted user ratio
2000 ms	1024 MiB	2608	841	721	85.73%

Unfortunately, the maximum possible memory limit for this judge is 1024 MiB, so the memory limit is 1024 MiB instead of 1300MB (1239MiB). Also, we don't know the exact scoring rules, so your score may be different from the official contest.

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Problem Source

Baltic Olympiad in Informatics 2013 Day 2 Problem 2

View problem - Tracks in the Snow (BOI13_tracks)

Tracks in the Snow Batch Compilation commands

Tracks in the Snow Batch