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Aho-Corasick problems
Problem Name Online Judge Year Contest Difficulty Level
1 I Love Strings!! Categories UVA 1
2 Substring Problem Categories SPOJ 2
3 Word Puzzles Categories SPOJ 2
4 Emoticons Categories SPOJ 3
5 Censored! Categories Timus 4
6 Substring Categories UVA 4
7 GRE Words Revenge Categories Live Archive 2013 Asia - Chengdu 5
8 Lucky Common Subsequence Categories Codeforces Codeforces Round #201 (Div. 1) & Codeforces Round #201 (Div. 2) 5
9 Obscene Words Filter Categories Timus 5
10 Lost in Space Categories UVA 5
11 Growing Strings Categories UVA 7
12 Prefixes and suffixes Categories SGU 7
13 Frequency of String Categories Codeforces Tinkoff Internship Warmup Round 2018 and Codeforces Round #475 (Div. 1) 8
14 e-Government Categories Codeforces VK Cup 2012 Round 2 8
15 Duff is Mad Categories Codeforces Codeforces Round #326 (Div. 1) 10
16 Digits of Number Pi Categories Codeforces Codeforces Round #325 (Div. 1) 10