1 
P1  Round House 
Codeforces 
Codeforces Round #346 (Div. 2) 
2 
P2  Spreadsheet 
Codeforces 
Codeforces Beta Round #1 
3 
P3  A and B and Interesting Substrings 
Codeforces 
Codeforces Round #294 (Div. 2) 
4 
P4  Team Queue 
UVA 

5 
P5  Powers of Two 
Codeforces 
Educational Codeforces Round 15 
6 
P6  Cakeminator 
Codeforces 
Codeforces Round #192 (Div. 2) 
7 
P7  Berutaxi 
Codeforces 
Codeforces Round #367 (Div. 2) 
8 
P8  Back to the 8Queens 
UVA 

9 
P9  Vasya and Types 
Codeforces 
Codeforces Beta Round #73 (Div. 1 Only) & Codeforces Beta Round #73 (Div. 2 Only) 
10 
P10  Rotated square 
UVA 
