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Proofy

Open on Codeforces · Unique solved

Rating2152· 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
151
Unique solved
2,708
Submissions (all)
8,032
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated607
  • 800–899510
  • 900–999111
  • 1000–1099114
  • 1100–1199136
  • 1200–1299125
  • 1300–1399134

Solved by topic

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

  • greedy956
  • math850
  • implementation593
  • constructive algorithms526
  • brute force477
  • dp382
  • data structures

Rating changes

2021

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

2021

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)91+562152
2025-11-16 16:35Codeforces Round 1064 (Div. 1)608-482096
2025-10-19 16:35Codeforces Round 1060 (Div. 2)33+1332144
2025-10-10 16:50Codeforces Round 1057 (Div. 2)63+1492011
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)
1400–1499
114
  • 1500–1599107
  • 1600–1699123
  • 1700–1799113
  • 1800–1899105
  • 1900–199998
  • 2000–209967
  • 2100–219961
  • 2200–229950
  • 2300–239945
  • 2400–249928
  • 2500–259919
  • 2600–269911
  • 2700–279914
  • 2800–28996
  • 2900–29996
  • 3100–31993
  • 3200–32991
  • 362
  • sortings311
  • binary search256
  • number theory228
  • dfs and similar198
  • strings195
  • graphs178
  • bitmasks171
  • two pointers156
  • trees136
  • combinatorics132
  • dsu76
  • games60
  • shortest paths51
  • geometry47
  • interactive45
  • divide and conquer45
  • hashing37
  • probabilities24
  • matrices17
  • ternary search15
  • graph matchings14
  • Other (10 tags)61
  • Jun
    Jul
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    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.

    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
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    Aug
    Sep
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    Dec

    LessMore (max 60/day in 2021)

    2022

    Download PNG

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

    Jan
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    May
    Jun
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    Aug
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    LessMore (max 68/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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    Dec

    LessMore (max 57/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 30/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 45/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 13/day in 2026)

    1244
    -25
    1862
    2025-10-05 18:35Codeforces Round 1056 (Div. 2)533+181887
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)4076-1221869
    2025-09-21 16:50Codeforces Round 1052 (Div. 2)71+1481991
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)4464-1291843
    2025-09-17 16:35Codeforces Round 1051 (Div. 2)483+191972
    2025-09-15 16:35Educational Codeforces Round 182 (Rated for Div. 2)647+51953
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)787-461948