Contest Name: 39272 - Treinamento OBI 2019 - Avancado (9 days, 16 hrs and 8 mins)

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Problem Name Online Judge Year Contest
1 P1 - Fish Codeforces Codeforces Beta Round #16 (Div. 2 Only)
2 P2 - Queries for Number of Palindromes Codeforces CROC-MBTU 2012, Elimination Round (ACM-ICPC)
3 P3 - Stripe 2 Codeforces Codeforces Alpha Round #21 (Codeforces format)
4 P4 - Bitmap SPOJ
5 P5 - Repaintings Codeforces Codeforces Beta Round #39
6 P6 - Isosceles Triangles Live Archive 2009 Latin America
7 P7 - Peer Review Live Archive 2011 Europe - Southwestern
8 P8 - Guess the Numbers Live Archive 2011 Europe - Southwestern
9 P9 - Dima and Staircase Codeforces Codeforces Round #167 (Div. 2) & Codeforces Round #167 (Div. 1)
10 P10 - D-query SPOJ
11 P11 - Query on a tree II SPOJ
12 P12 - Symbolic Logic Mechanization Live Archive 2008 North America - Pacific Northwest & North America - Southern California
13 P13 - Finite Fingerprints Live Archive 2010 North America - South Central USA
14 P14 - Everyone out of the Pool Live Archive 2011 North America - East Central NA
15 P15 - Find Terrorists Live Archive 2008 Asia - Amritapuri
16 P16 - Period Live Archive 2004 Europe - Southeastern
17 P17 - Longest Common Substring SPOJ
18 P18 - Dividing Stones Live Archive 2010 Asia - Amritapuri
19 P19 - Vigenère Cipher Encryption Live Archive 2011 Europe - Central
20 P20 - On Number of Decompositions into Multipliers Codeforces Codeforces Round #232 (Div. 1) & Codeforces Round #232 (Div. 2)
21 P21 - Pangram Codeforces Codeforces Round #295 (Div. 2)
22 P22 - Two Buttons Codeforces Codeforces Round #295 (Div. 2)
23 P23 - DNA Alignment Codeforces Codeforces Round #295 (Div. 2) & Codeforces Round #295 (Div. 1)
24 P24 - Anya and Smartphone Codeforces Codeforces Round #293 (Div. 2)
25 P25 - Tanya and Postcard Codeforces Codeforces Round #293 (Div. 2)
26 P26 - Vitaly and Strings Codeforces Codeforces Round #293 (Div. 2)
27 P27 - Fox And Snake Codeforces Codeforces Round #290 (Div. 2)
28 P28 - Fox And Two Dots Codeforces Codeforces Round #290 (Div. 2)