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cyx

Open on Codeforces · Unique solved

Rating2446· 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
48
Unique solved
1,095
Submissions (all)
2,101
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.

  • Unrated26
  • 800–89981
  • 900–99923
  • 1000–109917
  • 1100–119938
  • 1200–129936
  • 1300–139935

Solved by topic

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

  • greedy448
  • math394
  • dp352
  • data structures267
  • implementation255
  • brute force235
  • constructive algorithms

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
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-13 16:35Codeforces Round 1093 (Div. 1)294-712446
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)64+1002517
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)181+62417
2026-01-29 17:35Codeforces Round 1077 (Div. 1)265-442411
2026-01-17 17:35Codeforces Round 1073 (Div. 1)
1400–1499
33
  • 1500–159956
  • 1600–169959
  • 1700–179965
  • 1800–189954
  • 1900–199981
  • 2000–209959
  • 2100–219965
  • 2200–229968
  • 2300–239958
  • 2400–249961
  • 2500–259949
  • 2600–269954
  • 2700–279932
  • 2800–289918
  • 2900–29996
  • 3000–309911
  • 3100–31993
  • 3200–32991
  • 3300–33993
  • 3400–34993
  • 228
  • graphs190
  • dfs and similar183
  • binary search176
  • trees151
  • sortings142
  • combinatorics140
  • bitmasks109
  • number theory109
  • two pointers85
  • dsu83
  • strings81
  • shortest paths54
  • divide and conquer47
  • hashing31
  • interactive30
  • games28
  • probabilities26
  • string suffix structures13
  • flows11
  • geometry10
  • graph matchings9
  • Other (9 tags)47
  • 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
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 19/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 15/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 22/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 24/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 15/day in 2026)

    451
    -92
    2455
    2026-01-07 17:35Hello 2026207+02547
    2025-12-27 17:35Good Bye 2025360-442547
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)72+272591
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)32+1662564
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)205+372398
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)311-92361
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)346+152370