2018-06-04から1日間の記事一覧
ABC097-C (300 points) s = input() K = int(input()) sub = set() for i in range(len(s)): for j in range(i + 1,i + K + 1): sub.add(s[i:j]) ans = list(sorted(sub)) print(ans[K - 1])
ABC097-C (300 points) s = input() K = int(input()) sub = set() for i in range(len(s)): for j in range(i + 1,i + K + 1): sub.add(s[i:j]) ans = list(sorted(sub)) print(ans[K - 1])