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ji_114514

Open on Codeforces · Unique solved

Rating2126· 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
69
Unique solved
1,793
Submissions (all)
4,656
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.

  • Unrated414
  • 800–899172
  • 900–99941
  • 1000–109949
  • 1100–119964
  • 1200–129955
  • 1300–139971

Solved by topic

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

  • greedy657
  • math553
  • dp373
  • constructive algorithms354
  • data structures345
  • brute force333
  • implementation

Rating changes

2023

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

Jan
Feb
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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
2026-04-13 16:35Codeforces Round 1093 (Div. 1)535-662126
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)384+422192
2025-09-24 14:50Codeforces Round 1053 (Div. 1)707-642150
2025-09-09 16:35Codeforces Round 1049 (Div. 2)30+1172214
2025-08-28 17:35Codeforces Round 1046 (Div. 1)851
1400–1499
53
  • 1500–159948
  • 1600–169960
  • 1700–179963
  • 1800–189974
  • 1900–199970
  • 2000–209961
  • 2100–219973
  • 2200–229987
  • 2300–239978
  • 2400–249980
  • 2500–259962
  • 2600–269957
  • 2700–279922
  • 2800–289916
  • 2900–29998
  • 3000–309910
  • 3100–31993
  • 3200–32991
  • 3300–33991
  • 305
  • binary search220
  • sortings194
  • dfs and similar161
  • graphs158
  • trees157
  • bitmasks156
  • number theory145
  • combinatorics144
  • two pointers133
  • strings112
  • dsu72
  • divide and conquer68
  • games51
  • probabilities38
  • geometry38
  • interactive36
  • hashing33
  • shortest paths32
  • fft23
  • string suffix structures21
  • matrices18
  • Other (9 tags)65
  • 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 7/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 44/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 32/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 17/day in 2026)

    -95
    2097
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)308+752192
    2025-07-31 17:35Codeforces Round 1040 (Div. 1)481+102117
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)1002-122107
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)107+802119
    2025-06-23 16:35Educational Codeforces Round 180 (Rated for Div. 2)618-342039
    2025-05-11 17:05Codeforces Round 1024 (Div. 1)496-22073
    2025-05-01 16:35Codeforces Round 1022 (Div. 2)351-82075