Asked at IMC Trading, Two Sigma, 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.
xxxxxxxxx xxxxxxxxxx_xxxxxxxxxxxx(xxxxxxxxxxx), xxxxx xxxxxxx xxx xxxx-xxx
xxxxx xx xxxx xxxx x xxxxxx xxxxx xxxxxx xx xxxx xxxxx, xxxxx xxxxxxxxxxx xx
xx ( x xxxxx x ) xxx-xxxxxxxxxx xxxxxx xx xxxxx xxxxxx:
xxxxxxxxxxx[x][x] xx xxx xxxxxxxxxxx xx xxxxxx xxxx xxxxx x xx xxxxx
x, xxxxxx xx xxxxx, xxx xxxxx xxx xxxx xx xxxxxxx xxxxx. xxx xxxxx xx
xxxxxxxxxxx xxx xxxxxxxxx xx xxxxx xxxx, xx xxx xxxxxxxxxx xxxxxxxxxxxx
( xx ) xxxxxx, xx xxxxxx xxx xxxxxxxxx
[ xx x = xx, xxxxx xxx_x xx_x = x. ]
x xxxxxx xxxxx xx x xxxxxx xx xxxx x xxxxx: xxxx, xxxxxx xxx xxxxxxxx xxxxxxxxxx xxxxxx, xxxx x xxxxxx xxxx xxxx xxx xxxx xxxx xxx xxxxx xxx xxxxx xx xxxx xxxx. xxxxxxx x xxxxxx xxxxxx xxxxx xxx xxxxxx xx xxxxxx xxxxx xxxx xxxx xxxxxx.
xxxxxx ( xx ) xx xxxxx xxxxxx xx x xxxx xx x xxxxxxxx xxxx xxx xx
xxxxxxx xxxxx. xxxxxxx ( xx ) xx x xxxxx xxxxxx xxxxx, xx xxxxxxx xxx
xxxxxx xxxxxx xx xx xxxxx xxxxxxxxx xxx xx xxxxxxxxxxx, xxxx xxxxxxx xx
xxxx xxx xxxxxxx xxxxxxxxx xxxx:
xxx xxxxxx xxxxxxxx xx ( xx^{-x} ) xx xxxx xxxxx xxxxx xxx xxxx xxxxxxxx. xx xxxx xxx x xxxxxxxxxx xxxx xxxxxx xxxx xxxxxxxx xx xxx xxx.
xxxxxxxxxx_xxxxxxxxxxxx([[xxxx, xxxx], [xxxx, xxxx]])
# [xxxx, xxxx]
xxxxxxxxxx_xxxxxxxxxxxx([[xxxx, xxx, xxx], [xxxx, xxxx, xxx], [xxx, xxxx, xxxx]])
# [xxxx, xxxx, xxx]
xxx xxxxx xxxxx xxxxxx xxxx xxxxxx xx xxx xxxx xx xxxxx x. xxx xxxxx xxxxxx xx ( (xxxx.xx, xxxx.xx) ), xxx xxxxxx xxx xx xxxx, xxx xxx xxxxxxx xxxx xxxx xx xxx xxxxx xxxx xxx xxxxxx xxxxxxxxxx xxxx. xxx xxxxxx xx x xxxxx-xxxxx xxxxxx xxxxx xxxx x xxxx, xxxxxx xxxxxxxx xxxxx.
x <= x <= xxx, xxxxx xxx xxxx xx xxxxxxx xxxxx, xxx xxx xxxxx xx
xxxxxxxxxxx xxx xxxxxxxxx.This problem is only available to subscribers.