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Top rated · Stats

dantoh

Open on Codeforces · Unique solved

Rating2330· International 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
38
Unique solved
853
Submissions (all)
2,132
Years with activity
2018–2026

Solved by problem rating

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

  • Unrated10
  • 800–89970
  • 900–99919
  • 1000–109939
  • 1100–119931
  • 1200–129929
  • 1300–139933

Solved by topic

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

  • greedy354
  • math299
  • constructive algorithms222
  • dp219
  • implementation212
  • data structures202

Rating changes

2018

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

Jan
Feb
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May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-12-30 17:05Good Bye 2022: 2023 is NEAR616-202330
2022-05-08 16:35Codeforces Round 789 (Div. 1)114+1002350
2020-07-04 17:15Codeforces Global Round 9314+792250
2020-06-18 17:15Codeforces Global Round 8535+362171
2020-06-13 17:05Codeforces Round 649 (Div. 2)126+79
1400–1499
45
  • 1500–159928
  • 1600–169941
  • 1700–179946
  • 1800–189945
  • 1900–199954
  • 2000–209967
  • 2100–219956
  • 2200–229976
  • 2300–239954
  • 2400–249933
  • 2500–259935
  • 2600–269919
  • 2700–279912
  • 2800–28996
  • 2900–29991
  • 3000–30992
  • 3100–31991
  • 3200–32991
  • brute force
    179
  • binary search119
  • graphs111
  • dfs and similar108
  • sortings101
  • trees84
  • number theory83
  • bitmasks80
  • two pointers73
  • combinatorics70
  • strings52
  • dsu47
  • interactive30
  • shortest paths29
  • divide and conquer29
  • games23
  • probabilities17
  • hashing17
  • geometry15
  • matrices10
  • ternary search10
  • *special10
  • Other (8 tags)41
  • Jun
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    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.

    2019

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

    Jan
    Feb
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    Jun
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    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
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    Apr
    May
    Jun
    Jul
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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.

    2021

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

    Jan
    Feb
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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.

    2022

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

    Jan
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    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
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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
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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
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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.

    2026

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

    Jan
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    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.

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    LessMore (max 9/day in 2018)

    2019

    Download PNG

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

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    2020

    Download PNG

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

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    2021

    Download PNG

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

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    2022

    Download PNG

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

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

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    2024

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

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    2025

    Download PNG

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

    Jan
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    2026

    Download PNG

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

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    LessMore (max 15/day in 2026)

    2135
    2020-06-04 17:05Codeforces Round 647 (Div. 1) - Thanks, Algo Muse!861-592056
    2020-05-12 15:05Codeforces Round 641 (Div. 1)783-402115
    2020-04-26 16:35Educational Codeforces Round 86 (Rated for Div. 2)91+992155
    2020-04-12 16:05Codeforces Round 633 (Div. 1)525+462056
    2020-04-08 16:35Codeforces Round 632 (Div. 2)645+102010
    2020-04-03 16:35Codeforces Round 631 (Div. 1) - Thanks, Denis aramis Shitov!571+632000
    2020-03-07 11:35Codeforces Round 626 (Div. 1, based on Moscow Open Olympiad in Informatics)758-891937