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tarche

Open on Codeforces · Unique solved

Rating2236· 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
54
Unique solved
1,605
Submissions (all)
3,476
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated452
  • 800–899163
  • 900–99940
  • 1000–109948
  • 1100–119943
  • 1200–129931
  • 1300–139954

Solved by topic

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

  • greedy439
  • math430
  • dp305
  • implementation281
  • brute force248
  • constructive algorithms239
  • data structures

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-23 17:05Codeforces Round 1082 (Div. 1)447-452236
2026-02-11 17:35Codeforces Round 1079 (Div. 1)452-612281
2025-07-31 17:35Codeforces Round 1040 (Div. 1)221+392342
2025-02-11 16:35Codeforces Round 1004 (Div. 1)95+1662303
2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)1488
1400–1499
56
  • 1500–159938
  • 1600–169954
  • 1700–179971
  • 1800–189952
  • 1900–199964
  • 2000–209997
  • 2100–219991
  • 2200–229975
  • 2300–239971
  • 2400–249947
  • 2500–259919
  • 2600–269917
  • 2700–27994
  • 2800–289913
  • 2900–29993
  • 3000–30991
  • 3100–31991
  • 214
  • sortings163
  • graphs149
  • dfs and similar146
  • binary search145
  • number theory119
  • bitmasks110
  • trees104
  • combinatorics102
  • strings94
  • two pointers70
  • dsu68
  • games46
  • shortest paths43
  • divide and conquer38
  • probabilities33
  • interactive32
  • hashing31
  • geometry30
  • *special12
  • flows12
  • matrices12
  • Other (9 tags)50
  • 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.

    2021

    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.

    2022

    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.

    2023

    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.

    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 2020)

    2021

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
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    LessMore (max 12/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 16/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 20/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 43/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 36/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 18/day in 2026)

    -76
    2137
    2024-06-09 17:35Codeforces Global Round 26503+182213
    2024-05-25 17:35Codeforces Round 947 (Div. 1 + Div. 2)419+232195
    2024-04-30 17:05Codeforces Round 942 (Div. 1)357+532172
    2024-04-27 16:35Codeforces Round 941 (Div. 1)413+572119
    2024-04-13 16:35Codeforces Round 939 (Div. 2)84+1112062
    2024-04-12 16:35Educational Codeforces Round 164 (Rated for Div. 2)1426-581951
    2024-04-06 17:35Codeforces Global Round 252312-1012009