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bachbeo2007

Open on Codeforces · Unique solved

Rating2508· Grandmaster

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
25
Unique solved
1,398
Submissions (all)
2,892
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.

  • Unrated260
  • 800–89951
  • 900–99910
  • 1000–109915
  • 1100–119912
  • 1200–129916
  • 1300–139920

Solved by topic

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

  • dp370
  • math366
  • data structures354
  • greedy282
  • constructive algorithms212
  • implementation192

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
2024-02-17 17:35think-cell Round 120+2252508
2024-01-27 16:45Codeforces Round 921 (Div. 1)326+52283
2023-09-10 16:35Codeforces Round 896 (Div. 1)123+1372278
2023-06-18 16:35Codeforces Round 880 (Div. 1)160+1682141
2022-10-07 17:05Dytechlab Cup 20221441-72
1400–1499
16
  • 1500–159920
  • 1600–169919
  • 1700–179942
  • 1800–189949
  • 1900–199951
  • 2000–209976
  • 2100–219974
  • 2200–229977
  • 2300–239982
  • 2400–2499118
  • 2500–259988
  • 2600–269983
  • 2700–279957
  • 2800–289950
  • 2900–299927
  • 3000–309927
  • 3100–319919
  • 3200–329914
  • 3300–339913
  • 3400–34997
  • 3500–35995
  • brute force
    178
  • trees162
  • graphs161
  • dfs and similar159
  • binary search158
  • combinatorics130
  • number theory130
  • bitmasks124
  • sortings102
  • divide and conquer93
  • strings78
  • dsu74
  • two pointers66
  • interactive61
  • shortest paths48
  • geometry47
  • probabilities46
  • hashing41
  • matrices28
  • games26
  • fft24
  • *special23
  • Other (9 tags)83
  • 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
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    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
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    Dec

    LessMore (max 20/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 18/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 49/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 37/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 20/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 24/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 10/day in 2026)

    1973
    2022-08-16 16:35Codeforces Round 814 (Div. 1)743-792045
    2022-05-06 16:35Codeforces Round 788 (Div. 2)86+512124
    2022-04-30 16:35Codeforces Round 785 (Div. 2)207+172073
    2022-04-23 17:05Codeforces Global Round 20355+1112056
    2022-04-22 16:35Educational Codeforces Round 127 (Rated for Div. 2)889-551945
    2022-04-19 16:35Codeforces Round 783 (Div. 1)469+412000
    2022-04-17 16:50Codeforces Round 782 (Div. 2)169+751959