5 commits

Author	SHA1	Message	Date
Benjamin Qi	b09628ee96	mess up difficulties	2020-06-30 16:25:02 -04:00
Hankai Zhang	77d6744505	Add section on priority_queue, and add an extra problem.	2020-06-28 20:48:25 -04:00
Benjamin Qi	3180d3ef3c	convert silver - plat	2020-06-28 12:03:46 -04:00
Benjamin Qi	33c387d1d0	fix advanced bug	2020-06-28 00:01:28 -04:00
Benjamin Qi	20950a2a3a	make sqrt, clean up most of plat	2020-06-27 23:56:39 -04:00