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Open on Codeforces · Unique solved

Rating2159· Master

Bar charts count unique accepted problems (merged with the global problem set for rating and tags). Heatmaps use UTC calendar days. Rating squares are sums of newRating − oldRating from user.rating when System update time falls on that day. Submissions count every row from user.status (all verdicts), paginated until Codeforces has no more rows—heavy accounts can take a few seconds.

Rated contests
51
Unique solved
888
Submissions (all)
1,814
Years with activity
2023–2026

Solved by problem rating

Unique accepted problems, bucketed by catalog rating (100‑point bands). Unrated = no rating in the problem set.

  • Unrated66
  • 800–899123
  • 900–99920
  • 1000–109930
  • 1100–119933
  • 1200–129931
  • 1300–139933

Solved by topic

Each problem counts once per tag (same as Codeforces tags). Top tags shown; remaining mass in “Other”.

  • greedy393
  • math377
  • dp232
  • implementation229
  • brute force223
  • data structures183
  • constructive algorithms

Rating changes

2023

Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

Count of submissions per UTC day (includes every verdict).

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-11 17:35Codeforces Round 1079 (Div. 1)204+972159
2026-02-08 11:05Codeforces Round 1078 (Div. 2)158+432062
2026-01-29 17:35Codeforces Round 1077 (Div. 1)564-422019
2026-01-07 17:35Hello 20262031-862061
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)417
1400–1499
57
  • 1500–159949
  • 1600–169949
  • 1700–179954
  • 1800–189937
  • 1900–199958
  • 2000–209935
  • 2100–219940
  • 2200–229949
  • 2300–239945
  • 2400–249939
  • 2500–259921
  • 2600–26998
  • 2700–27996
  • 2900–29993
  • 3000–30992
  • 182
  • binary search160
  • sortings118
  • number theory94
  • dfs and similar86
  • combinatorics86
  • bitmasks85
  • trees79
  • graphs72
  • two pointers68
  • strings60
  • games41
  • divide and conquer40
  • dsu31
  • interactive31
  • geometry20
  • hashing19
  • probabilities16
  • shortest paths14
  • ternary search12
  • graph matchings6
  • matrices5
  • Other (8 tags)24
  • Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2024

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2025

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    2026

    Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    Green: rating up · red: rating down · intensity: |Δ| tiers (<50, 50–99, 100+). One square may combine multiple rated contests on the same UTC day.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 15/day in 2023)

    2024

    Download PNG

    Count of submissions per UTC day (includes every verdict).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 29/day in 2024)

    2025

    Download PNG

    Count of submissions per UTC day (includes every verdict).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 33/day in 2025)

    2026

    Download PNG

    Count of submissions per UTC day (includes every verdict).

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 24/day in 2026)

    +47
    2147
    2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)801-602100
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)440+512160
    2025-06-23 16:35Educational Codeforces Round 180 (Rated for Div. 2)53+1052109
    2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 2025553-92004
    2025-06-12 16:35Codeforces Round 1030 (Div. 2)290+392013
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)731-261974
    2025-05-24 16:35Codeforces Round 1026 (Div. 2)474+52000