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YocyCraft

Open on Codeforces · Unique solved

Rating2808· International 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
59
Unique solved
2,488
Submissions (all)
4,681
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated36
  • 800–899366
  • 900–99976
  • 1000–109985
  • 1100–1199110
  • 1200–1299102
  • 1300–1399100

Solved by topic

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

  • greedy1,181
  • math1,051
  • constructive algorithms674
  • implementation662
  • dp662
  • brute force646
  • data structures

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-04-26 11:35Codeforces Round 1021 (Div. 1)46+142808
2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)55+592794
2025-02-11 16:35Codeforces Round 1004 (Div. 1)138-432735
2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)71+462778
2025-01-04 17:05Hello 2025
1400–1499
116
  • 1500–159992
  • 1600–1699116
  • 1700–1799131
  • 1800–1899116
  • 1900–1999148
  • 2000–2099112
  • 2100–2199106
  • 2200–2299120
  • 2300–2399102
  • 2400–2499118
  • 2500–2599112
  • 2600–269972
  • 2700–279955
  • 2800–289932
  • 2900–299923
  • 3000–309919
  • 3100–31996
  • 3200–32997
  • 3300–33997
  • 3400–34992
  • 3500–35991
  • 581
  • binary search400
  • sortings377
  • dfs and similar302
  • graphs289
  • number theory280
  • combinatorics259
  • bitmasks249
  • two pointers242
  • trees233
  • strings196
  • dsu126
  • divide and conquer97
  • games93
  • interactive88
  • shortest paths80
  • geometry67
  • hashing66
  • probabilities51
  • matrices25
  • graph matchings23
  • *special22
  • Other (9 tags)114
  • Jun
    Jul
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    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
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 32/day in 2022)

    2023

    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 77/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 39/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 28/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 19/day in 2026)

    42
    +111
    2732
    2024-12-19 17:35Codeforces Global Round 28345-772621
    2024-12-03 08:25Codeforces Round 990 (Div. 1)61+112698
    2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)205-422687
    2024-09-27 16:05Codeforces Round 975 (Div. 1)64+392729
    2024-08-30 17:05Codeforces Round 969 (Div. 1)52+722690
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)99+552618
    2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)217-232563