Asked at Jump Trading
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.
"xxxx xxxxxxxx xxx xxxx, xxx xxxx xxx xxxx xxxxxx. xxxx xx xxx xx?" xx x xxxxxxxxx-xxxxxxxx xxxxxxxxx xxxxxxxx, xxx xxxx-xxxxxxx xxxxxxxxxx xx xxxx xx xxx xxxxxxxx xxxxxx: xxxx xxx xxxxx xx xxx xxxx, xxxxx xx xx xxx xxxx xxxxx, xxxx xx. xxxx xxxxxxx xxxxxxxxxx xxx xxxx xxxx, xxxxx xxxxxxxx, xxxx xxxxx xxxx xxxxxx xx xxxxx xx xxxxxxx xxx xxxxx xxxxxx.
xxxxxxxxx xxxx_xxxxxxx(xxxxxxx, x_xxxxx, xxxx_xxx).
xxxxxxx: x xxxx xx xxx-xxxxxx xxxxxxx, xx xxxx xxxxx.x_xxxxx: xxx xxxx xxxxxxxxxx, xxxx-xxxxxxx xxxxx xx xxx xxx xxxxxx
xxxx (xxx(xxxxxxx) // x_xxxxx xxxx, xxxxx xxx(xxxxxxx) % x_xxxxx
xxxxx xxx xxxxxx).xxxx_xxx: xxx-xxx xxxxxxx xxxx xx xxxxx xxxxxx.xxx xxxxx xxxxxx xx x xxxxxxxx xxxx xxxx xxxxxxxx ( x xx {x,...,x} ):
xxx xxxxxxxx xx xxxx ( x ) xx xxx xxxx xx xxx xxxx xx
xxxxxxx[x-x : x] (xxxx xx +x, -x, xx x xx xx xxxxx xxxx), xxx x
xxxxxxxx ( x < x ).
xxxxxxxxxx xxx xxxx xxxx xx xxxxx xxxxx xxxxxxx xxx xxx xx xxxxxxx: xxxxx
xxx xxxxx xxxx (xxxxxxxx xxxxxxxx x), xxx xx xxxx ( x ) xx xxx xxxxx xxx
xxxxxxxx_x * xxxxxxx[x] xxxxx (xxxx_xxx / xxxxx) * xxx(xxxxxxxx_x - xxxx_xxxxxxxx).
xxx xxxx: xxxx x xx xxxxxxx xxxxxxx xxxx. xxx xxxx xxxxxxxxxx xxxx
( x = x, ..., x_xxxxx ), xxxxxx xxx xxxxxxxx xxxx xxx xxxxxxx xxx
xxx xxxxxxxxx xxxx xxx xxxxxxx xxxxxx xxx xxxx (xxxx: xxx xxxxxxxx
xxxxxxxx), xxxx xxxxxxxx xxxx xxxxxxxx xxxx xxx xxxx'x xxx xxxxxxx. xxxxxx
xxx xxxx xx xxx-xxxx xxx xxxx, xxxx xxxxxxx xx x xxxxxxxx; xxx xxxxxx xx
x_xxxxx - x.
xxxx_xxxxxxx([x.xx] * xx + [-x.xx] * xx, x, x)
# [x.xx]
xxxx_xxxxxxx([x.xx] * xx + [-x.xx] * xx, x, xx)
# [x.xxx]
xxx xx-xxxxxxx xxxx xxx xxxx: xxx xxxx xxxxx xxx xxxxxxxx xx, xxxxx xx xxx xxxx, xxxxx, xxx xxxxx xx xxxx; xxxxx xxxx xxxxx xxx xxxxx xxx xxx xxxx.
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