tree 75f12e500cc812da728e71db2af242c82256e5c2
parent feabfdccc86aef855c86bdeb71e2fa55d410a5cb
author Zhiyi Zhang <zhiyi@cs.ucla.edu> 1601764972 -0700
committer Zhiyi Zhang <zhiyi@cs.ucla.edu> 1601764980 -0700

update challenge modules aginst spec

Change-Id: Ibcfe851a77df1854f417d60cd48a66f8213aedc6