Asked at Virtu Financial
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.
xxx xxxxx xxxxxxxxx xxxxx xxx xxx xxxx xxxx xxxxxxxxx xxx xxxx-xxx xxxxxx xxxx xx x xxxxxxxx. xxxxx xxxxxx xxx xxxx xxxxx, xxxxxxx xxx xxxxxxx xxxxxxx xxx xxxx xxxx xxxx xxxxxxx xxx xxxxxxxx xxxxxxxxxxxxxx xx xxxxxxxx, xx x xxxx xxx xxxx xx xxx xx xx xx xxxxxxxx.
xxx x xxx xxxx xxxx xxxx xxxxxxxxxxx ( x ) xx xxxx xx ( x ) xx x, xxx xxxxx xxxxxxxx xx
[ x^* = xxxx{xx - x}{x}, xxxxx x = x - x ]
xxxxxxxxx xxxxx_xxxxxxxx(x_xxx, x_xxx, x_xxx, x_xxx, xxx_xxx, xxx_xxx).
xxx xxx xxxxxxxxx xxx xxxxxxxx xxxxxxxx. xxx xxx xxxxxxxxxxx xx xxx xxxxxxxx
x_xxx / x_xxx, xxx xxxx xxx x_xxx / x_xxx, xxx xxx xxx xx
xxx_xxx / xxx_xxx.
xxxxxx xxx xxxxxxxxxxx xxxxxxxx xx x (xxx, xxx) xxxxx xx xxxxxx xxxxx
xxxx xxx > x, xxxxxxx xx:
(x, x), xxxxxxx xx xxx xxx;xxx xxxxxx xxxx xx xxxxx. xxxxxxxxxx xxxx xx xxxxxxxx, xx xxxxxxx xxxxx xxxxxxxx xxxxx, xxx xxx xxxx-xxxx xxxxxxxx xx xxxxxxxxx xxxxx x xxxxx xxxxx xxxx xxx x xxxx xxxxxxxx xxxxxx xxx x xxx xxx xxxxxx xxx xxxx xxxx.
xxxxx_xxxxxxxx(x, xx, x, x, x, x)
# (x, x)
xxxxx_xxxxxxxx(x, x, x, x, x, x)
# (x, x)
xxx xxxxx xx xxx xxxxxxxx xxxx: x xx% xxxxxx xx xxxx xxxxx xxxxx ( x^* = x.x ). xxx xxxxxx xx x xxxx xxxx xx xxxx xxxxx, xxxxx xxx xxxx xx xxxxxxx xxxx xxx xxx xxxxxxx xxxx xx xxxxxxx xx xxx.
x_xxx <= x_xxx xx xxx
xxxxxxxxxxx xx xx ( [x, x] ).xxxx.xxx.This problem is only available to subscribers.