Asked at Headlands Technologies
Theory: Data Structures You Implement, Not ImportRead the problem, hints and solution here. The editor needs a bigger screen: open this page on a laptop to write and run your code.
Available in Python and C++. You are solving it in Python. Switch to C++
x xxxxxxxx xxxxx xxx xxxx-xxxxxxx xxxxxxxx xx xxxxxx, xxx xxx xxxxxx xxxxxx xx xxxxxxx xxxxxx xxxx xxxxx, xxx xxx xxxxx, xxxx xx xxxxx xx xxx xxx. xxx xxxxxxxxxxxxx xxxx xxxxxx xxxx xxxx x xxxxxx xxxxxxxx. x xxxxxxxx xxxxxxxxx xxxxx-xxxxxx xxxxxxx xx xxxxxxx xxxx: xxxxx xxxxxxx xxxx xxxxxxx xx x++, xxx xxxx xxxxxxx xxx xxx xxxxx xx xx xxxx xxx xxxxxxx xxx xxxxxxxx xx xxxxxxx xxx xxx xxxxxx xxxx xxx xxxxx.
xxxxxxxxx xxxxx_xxxxxxx(xxxxxxx).
xxxxxxx xx x xxxx xx xxxxx. xxxx xxxx xx x xxxx xx xxxxxxx xxxxxxxxxx xx
xxx-xxxxxxxxxx xxxxx. x xxxx xxx xx xxxxx, xxx xx xxx xxx xxxx xx xxxxx.xxxxx_xxxxxxx([[x, x, x], [x, x, xx], [x]])
# [x, x, x, x, x, x, xx]
xxxxx_xxxxxxx([[x, x], [], [x, x, x]])
# [x, x, x, x, x]
xxx::xxxxxx<xxxx xxxx> xxxxx_xxxxxxx(
xxxxx xxx::xxxxxx<xxx::xxxxxx<xxxx xxxx>>& xxxxxxx);
xxxx xxxxx xxxxxx xx x xxxx xx xxx-xxxxxxxxxx xxxxx xxx xxx xxxxxx xx xxx xxxxxx xxxxxxxx.
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