Submission #4068821

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Source Code Expand

from collections import Counter

def ngram(text, n):
    return [text[i:i+n] for i in range(len(text) - n + 1)]

text = input()
k = int(input())
candidates = set()
for n in range(1,6):
    #_ = filter(lambda x:x[1] == 1,Counter(ngram(text,n)).items())
    candidates |= set(ngram(text,n))

print(sorted(list(candidates))[k-1])

Submission Info

Judge Result