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YPK

Open on Codeforces · Unique solved

Rating2133· 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
95
Unique solved
2,224
Submissions (all)
3,656
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated94
  • 800–899335
  • 900–999119
  • 1000–1099126
  • 1100–1199127
  • 1200–1299129
  • 1300–1399123

Solved by topic

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

  • greedy896
  • math820
  • implementation682
  • constructive algorithms503
  • brute force422
  • dp409
  • data structures

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-12-01 16:35Educational Codeforces Round 118 (Rated for Div. 2)65+892133
2021-10-29 16:35Educational Codeforces Round 116 (Rated for Div. 2)188+502044
2021-10-24 12:35Codeforces Round 750 (Div. 2)164+611994
2021-10-17 13:20Codeforces Round 749 (Div. 1 + Div. 2, based on Technocup 2022 Elimination Round 1)2165-1081933
2021-10-10 11:05
1400–1499
122
  • 1500–1599145
  • 1600–1699140
  • 1700–1799143
  • 1800–1899144
  • 1900–1999136
  • 2000–2099104
  • 2100–219981
  • 2200–229981
  • 2300–239935
  • 2400–249927
  • 2500–25999
  • 2600–26991
  • 2700–27993
  • 316
  • sortings313
  • binary search260
  • number theory201
  • strings190
  • graphs187
  • dfs and similar184
  • two pointers170
  • trees133
  • bitmasks126
  • combinatorics113
  • dsu57
  • shortest paths49
  • games47
  • interactive40
  • divide and conquer39
  • geometry39
  • hashing34
  • ternary search16
  • probabilities15
  • flows15
  • graph matchings10
  • Other (9 tags)45
  • 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
    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.

    May
    Jun
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    Aug
    Sep
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    Dec

    LessMore (max 237/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    LessMore (max 31/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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    LessMore (max 15/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 25/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 8/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 13/day in 2025)

    Educational Codeforces Round 115 (Rated for Div. 2)
    322
    -15
    2041
    2021-10-08 17:20Codeforces Round 747 (Div. 2)83+892056
    2021-09-20 16:35Educational Codeforces Round 114 (Rated for Div. 2)844-391967
    2021-09-12 17:05Codeforces Global Round 16734+402006
    2021-09-08 16:35Educational Codeforces Round 113 (Rated for Div. 2)1301-761966
    2021-09-05 16:35Codeforces Round 742 (Div. 2)434-102042
    2021-08-29 17:05Deltix Round, Summer 2021 (open for everyone, rated, Div. 1 + Div. 2)873+22052
    2021-08-26 16:50Codeforces Round 741 (Div. 2)623-422050