Editorial of Codeforces round #671

[rishabh_singh0]

D1 and D2 Sage’s birthday

D1 & D2 Sage's Birthday (easy version) ( hard version ) Codeforces Round 671 Div 2 Problem Solution

B

B Stairs Codeforces Round # 671 Div 2 Problem Solution Code

[rahulsrahul]

Bro, we actually want E and F to improve. Anyways, I appreciate your effort.