View problem - Safety (NOI18_safety) :: oj.uz

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

Time limit	Memory limit	# of submissions	# of submitted users	Solved #	Accepted user ratio
2000 ms	256 MiB	637	176	144	81.82%

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Problem Source

Singapore National Olympiad in Informatics 2018 Problem 5