CTP17, 2017-10-19
jykim@ropas.snu.ac.kr

make_timestamped_loc()
float, float, int -> dict

sort_locs()
list[dict] -> list[dict]

total_dist()
list[dict] -> float

total_walked_dist()
list[dict] -> float

frequency_sort()
list[str] -> list[str]

count_word_list()
list[list[str]] -> int