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Top rated · Stats

ttttan

Open on Codeforces · Unique solved

Rating2548· 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
168
Unique solved
2,896
Submissions (all)
5,454
Years with activity
2019–2026

Solved by problem rating

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

  • Unrated2
  • 800–899415
  • 900–999114
  • 1000–1099126
  • 1100–1199135
  • 1200–1299142
  • 1300–1399146

Solved by topic

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

  • greedy1,238
  • math1,122
  • implementation821
  • constructive algorithms754
  • dp658
  • brute force644
  • data structures

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-12-30 16:50Good Bye 2023227+82548
2023-12-23 17:35Pinely Round 3 (Div. 1 + Div. 2)209-112540
2023-11-25 17:20CodeTON Round 7 (Div. 1 + Div. 2, Rated, Prizes!)242-352551
2023-11-07 16:35Codeforces Round 908 (Div. 1)57+1002586
2023-10-28 17:05Codeforces Round 906 (Div. 1)96
1400–1499
148
  • 1500–1599150
  • 1600–1699169
  • 1700–1799192
  • 1800–1899160
  • 1900–1999171
  • 2000–2099137
  • 2100–2199131
  • 2200–2299131
  • 2300–2399106
  • 2400–2499113
  • 2500–259991
  • 2600–269952
  • 2700–279939
  • 2800–289911
  • 2900–29999
  • 3000–30994
  • 3100–31991
  • 3300–33991
  • 536
  • sortings426
  • binary search382
  • dfs and similar301
  • graphs298
  • number theory291
  • strings257
  • two pointers239
  • combinatorics236
  • bitmasks223
  • trees212
  • dsu125
  • geometry82
  • games79
  • divide and conquer79
  • interactive75
  • shortest paths72
  • hashing56
  • probabilities53
  • matrices26
  • ternary search22
  • flows21
  • Other (9 tags)87
  • 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.

    2020

    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.

    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
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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.

    2023

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

    Jan
    Feb
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    Apr
    May
    Jun
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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.

    2024

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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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
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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.

    May
    Jun
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    Dec

    LessMore (max 20/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 31/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 51/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 22/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 17/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 9/day in 2024)

    2025

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 4/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
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    Jun
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    LessMore (max 4/day in 2026)

    +75
    2486
    2023-10-22 13:05Codeforces Round 905 (Div. 1)222-52411
    2023-09-30 17:35Codeforces Round 901 (Div. 1)182+322416
    2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)387-122384
    2023-09-10 16:35Codeforces Round 896 (Div. 1)380-502396
    2023-07-29 17:05Codeforces Round 889 (Div. 1)318-412446
    2023-07-23 17:05Codeforces Round 887 (Div. 1)209-282487
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)237-152515