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scotchtape

Open on Codeforces · Unique solved

Rating2121· 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
105
Unique solved
840
Submissions (all)
1,901
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.

  • Unrated41
  • 800–899241
  • 900–99953
  • 1000–109954
  • 1100–119965
  • 1200–129954
  • 1300–139956

Solved by topic

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

  • greedy449
  • math358
  • implementation230
  • constructive algorithms219
  • brute force184
  • sortings133

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
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-08-25 16:35Codeforces Round 968 (Div. 2)29+1622121
2024-08-15 16:35Educational Codeforces Round 169 (Rated for Div. 2)772-31959
2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)782+631962
2024-08-10 16:35Codeforces Round 965 (Div. 2)393+681899
2024-08-04 16:35Codeforces Round 963 (Div. 2)
1400–1499
47
  • 1500–159939
  • 1600–169943
  • 1700–179935
  • 1800–189928
  • 1900–199926
  • 2000–209926
  • 2100–219910
  • 2200–22998
  • 2300–23999
  • 2400–24994
  • 2500–25991
  • data structures
    119
  • dp117
  • binary search92
  • number theory83
  • strings78
  • bitmasks64
  • two pointers54
  • graphs49
  • dfs and similar45
  • combinatorics36
  • trees35
  • games33
  • dsu22
  • geometry16
  • shortest paths14
  • divide and conquer14
  • hashing12
  • interactive9
  • probabilities5
  • *special4
  • graph matchings3
  • ternary search3
  • Other (8 tags)12
  • 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
    Oct
    Nov
    Dec

    LessMore (max 9/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
    Aug
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    LessMore (max 30/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 20/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
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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 17/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
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    Dec

    LessMore (max 19/day in 2026)

    1177
    +1
    1831
    2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)1975-141830
    2024-07-07 16:50Codeforces Round 956 (Div. 2) and ByteRace 2024591+501844
    2024-06-30 17:35EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)2166-281794
    2024-06-27 16:35Educational Codeforces Round 167 (Rated for Div. 2)2476-711822
    2024-06-25 16:35Codeforces Round 955 (Div. 2, with prizes from NEAR!)1620-601893
    2024-06-16 11:05Codeforces Round 953 (Div. 2)375+251953
    2024-06-09 17:35Codeforces Global Round 261459-171928