Asked at Hudson River Trading, Tower Research Capital
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 xxx xxxxxx xxxx xxxxxx xxxx. xxx xxxxxxxx xx xxx xxxxxx xxxxxxxxx x xxxxxxx xxxxxx-xxxxxxxx xxxxxxx xxxxx, xxx xx xxxxxx x xxxxx xxxxx xx x xxxxx xxxxxxx. xx xx xxxxx xx xxxxx xxxx, xxx xxxx xx xxxx xxxxxxx. xxxxx xxxxxxxx xxxx xxxxxxxx xxxx xxx xxxxx xxxx xxxxxxx:
xxxx xxx xxxx xxx xxx xxxxxxx_xxxx(xxxxxx, xxxxxx).
xxxxxx: x xxxx xx (xxxxxxxxx_xx, xxxxx, xxx) xxxxxx xx xxx-xxxxxxxxxx
xxxxxxxxx xxxxx. xxxxxx xxx xxxxxxxxxx xxx xxxxxxxx xxxxxxxx.xxxxxx: xxx xxxxxx xxxxxx xx xxxxxxxxxxxx, x xxxxxxxx xxxxxxx.xxx xxxx xxxxx, xxxxxx xxx xxxx xx xxx xxxxxx xxxx xxxx xx xxxx xxxxx: xxxxx
xxxxx xx xx xxx xxxxxxxxx xxxx xxx xxxxx xxxxxxxxx xx xxxxxxx xxxx
xxxxxxxxx - xxxxxx. x xxxxx xxxxxxx xxxxxx xxxxxxxxxxxx xxx xxx xxxx xxx
xxxxxx. xxxxxx x xxxx xx xxxxxx, xxx xxx xxxxx, xxxxx xxx xxxx xx x xxx xx
xxxxxx xx
[ xxxx{xxx_x x_x , x_x}{xxx_x x_x} ]
xxxxxxx_xxxx([(x, xxx, xx), (xxx, xxx, xx), (xxxx, xxx, xx), (xxxx, xx, xx)], xxxx)
# [xxx.x, xxx.x, xxx.xxxxxxxxxxxxxx, xxx.xxxxxxxxxxxxxx]
xx xxxxxxxxx xxxx xxx xxxxxx xx ( (x, xxxx] ), xx xxx xxxxx xx x xxx xxxx xxx xxx xxxx xxxxxx xxx xxxxxx xx xxx xxx xxxx. xx xxxx xxx xxxxxx xx ( (xxx, xxxx] ).
xxxxxxx_xxxx([(x, xx, x), (x, xx, x), (x, xx, x), (x, xx, x), (xx, xx, x)], xx)
# [xx.x, xx.xx, xx.xxxxxxxxxxxxxxx, xx.xxx, xx.xx]
xxxxxx xxxx xxxxx x xxxxxxxxx xxx xx xxxx xxxxx'x xxxxxxx xxxx xxxx xxxx xxxxxxx. xx xx xxx xxxxxx xx ( (x, xx] ), xx xxxx xxxxxx xx x xxxx xxxx.
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