Asked at Two Sigma
Theory: Quant Python That Survives ReviewRead the problem, hints and solution here. The editor needs a bigger screen: open this page on a laptop to write and run your code.
xxxxx xxxxxxxxxx xxxxx xx xxxxxxx xxxxxx xx xxxxxxxx xxxxxx: xxx xxxx xxx, xxx xxxxxx xxxx xxx xxxx ( x ) xxxx. xx xx xxxx xxxxx xx xxxx, xxx xx xx xxxx xxx xxxxx xxxxx xxxxx xxxx-xxxxx xxxx xx xxxxxx xxxx xxx xx x xxxxxxxx xxxxxxxx xx xxxxx xxxx xx, xxxxx xx xxx xxxxxxxxxx-xxxx xxxxxxxxxxx xxxxxxxxxx xxxxxx xxxx xxxxxxxxxxxx.
xxxxxxxxx xxxxxxx_xxxxxxx(xxxxxx, x).
xxxxxx xx x xxxx xx xxxxxxxx xxxxxx, xxx xxx xxxxxx, xx xxxx xxxxx.x xx xxx xxxxx xxxxxxx, xx xxxxxxx ( xxx x ).xxxxxx x xxxx xxx xxxx xxxxxx xx xxxxxx, xxxxx xxxxx ( x ) xx xxx
xxxxxx xxxxxxx xxxxxx
[ xxxx{x_{x+x}}{x_x} - x ]
xxxxxxx xx x xxxxxxxx, xxx xxxx xxxxxxxx ( x + x ) xxxx xxxx xxx xxx
xx xxx xxxxxx. xxx xxxxx xx xxxxxxxx ( x ) xxx xxxx xxx xxxxxx xxxx
( x ) xxxxxx; xxx xxxx ( x ) xxxxxxx xxx xxxx xxxxxxx xxxxx xxxxxx
xxx xxx xxxxxxxx, xxx x xxxxxxxx xxxx xxxxx xxxx xxxx xxxxxxxx xxxx xx
xxxxx xx xxxxxx.
xxxxxxx_xxxxxxx([xxx.x, xxx.x, xxx.xx, xxx.x], x)
# [x.xx, x.xx, -x.xxxxxx, xxxx]
xxxxxxx_xxxxxxx([xxx.x, xxx.x, xxx.x], x)
# [x.xx, xxxx, xxxx]
x xxxxxxx xx xxxxx xx xxxx xx xxx xxxxxx xxxxx xxxxx xxxxx xxxx, xxxxx
xx xxx xxxxxx xxxxxx, xxx xx xxxxx.
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