View problem - Telegraph (JOI16_telegraph) :: oj.uz

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

Time limit	Memory limit	# of submissions	# of submitted users	Solved #	Accepted user ratio
1000 ms	256 MiB	73	29	28	96.55%

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Problem Source

2016 JOI Spring Training Camp/Qualifying Trial Day 3 Problem 2