🪜 A2OJ Ladders — Codeforces Practice

Source: A2OJ Client-side Ladders • Original Blog by Ahmed Aly Total: 2,900 problems across 29 ladders — 100–200 problems each, organized by division & rating.

Division-Based Ladders

Ladder	Target	Problems	File
4	Div 2, Problem A	100	View
5	Div 2, Problem B	100	View
6	Div 2, Problem C	100	View
7	Div 2, Problem D	100	View
8	Div 2, Problem E	100	View
9	Div 1, Problem D	100	View
10	Div 1, Problem E	100	View

Rating-Based Ladders (100 problems each)

Ladder	Rating	Target Level	File
11	< 1300	Newbie / Pupil	View
12	1300–1399	Pupil	View
13	1400–1499	Specialist	View
14	1500–1599	Specialist	View
15	1600–1699	Expert	View
16	1700–1799	Expert	View
17	1800–1899	Expert	View
18	1900–1999	Candidate Master	View
19	2000–2099	Candidate Master	View
20	2100–2199	Master	View
21	≥ 2200	Master+	View

Rating-Based Extra Ladders (200 problems each)

Ladder	Rating	Target Level	File
22	< 1300 (Extra)	Newbie / Pupil	View
23	1300–1399 (Extra)	Pupil	View
24	1400–1499 (Extra)	Specialist	View
25	1500–1599 (Extra)	Specialist	View
26	1600–1699 (Extra)	Expert	View
27	1700–1799 (Extra)	Expert	View
28	1800–1899 (Extra)	Expert	View
29	1900–1999 (Extra)	Candidate Master	View
30	2000–2099 (Extra)	Candidate Master	View
31	2100–2199 (Extra)	Master	View
32	≥ 2200 (Extra)	Master+	View

Progress Trackers

Last updated: May 2026