add scala solutions for questions 15,16,17#106
Merged
jinshendan merged 1 commit intoAlgoStudyGroup:masterAlgoStudyGroup/Leetcode:masterfrom May 17, 2020
Merged
add scala solutions for questions 15,16,17#106jinshendan merged 1 commit intoAlgoStudyGroup:masterAlgoStudyGroup/Leetcode:masterfrom
jinshendan merged 1 commit intoAlgoStudyGroup:masterAlgoStudyGroup/Leetcode:masterfrom