Codeforces Beta Round #54 (Div. 2) A. Chat room

01-30

Codeforces Round #379 (Div. 2) A. Anton and Danik

01-30

Codeforces Beta Round #65 (Div. 2) A. Way Too Long Words

01-29

Codeforces Round #376 (Div. 2) A. Night at the Museum

01-29

Codeforces Round #197 (Div. 2) A. Helpful Maths

01-29

Codeforces Round #295 (Div. 2) A. Pangram

01-15

Codeforces Beta Round #40 (Div. 2) A. Translation

01-14

Codeforces Round #146 (Div. 2) A. Boy or Girl

01-13

Codeforces Beta Round #89 (Div. 2) A. String Task

01-13

Codeforces Beta Round #85 (Div. 2 Only) A. Petya and Strings

01-13