TopCoder SRM 673 Div 2

srm673-easy-BearSong.py

from collections import defaultdict
class BearSong():
    def countRareNotes(self, notes):
        d = defaultdict(int)
        for i in notes:
            d[i] += 1
        return(len([i for i in d.values() if i == 1]))

srm673-med-BearSlowlySorts.py

class BearSlowlySorts():
    def minMoves(self, w):
        w = list(w)
        if w == sorted(w):
            return 0
        else:
            minw = min(w)
            maxw = max(w)
            if minw == w[0]:
                return 1
            elif maxw == w[-1]:
                return 1
            elif maxw == w[0]:
                if minw == w[-1]:
                    return 3
                else:
                    return 2
            else:
                return 2

Editorial of SRM #673 - Codeforces

• Easy
• Med
• Hard