Numbers of Interest 2
Codeforces Round 435 (Div. 2) E. Mahmoud and Ehab and the function
Codeforces Round 441 (Div. 1, by Moscow Team Olympiad) C. National Property
Codeforces Round 442 (Div. 2) D. Olya and Energy Drinks
Codeforces Round 447 (Div. 2) E. Ralph and Mushrooms
Codeforces Round 448 (Div. 2) D. String Mark
Codeforces Round 452 (Div. 2) F. Letters Removing
Codeforces Round 450 (Div. 2) E. Maximum Questions
Codeforces Round 455 (Div. 2) D. Colorful Points
Codeforces Round 456 (Div. 2) D. Fishes