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cub1ll

Open on Codeforces · Unique solved

Rating2264· 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
15
Unique solved
195
Submissions (all)
377
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.

  • 800–899118
  • 900–99918
  • 1000–109915
  • 1100–11998
  • 1200–12997
  • 1300–13997
  • 1400–14992

Solved by topic

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

  • implementation92
  • math81
  • greedy60
  • brute force30
  • strings27
  • sortings24
  • 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
2026-02-11 17:35Codeforces Round 1079 (Div. 1)696-1162264
2026-01-29 17:35Codeforces Round 1077 (Div. 1)81+1112380
2026-01-17 17:35Codeforces Round 1073 (Div. 1)271+312269
2025-12-06 10:15Codeforces Round 1069 (Div. 1)38+2652238
2025-12-05 16:35Codeforces Round 1068 (Div. 2)290
1500–1599
2
  • 1600–16991
  • 1700–17991
  • 1800–18994
  • 1900–19994
  • 2000–20991
  • 2100–21991
  • 2200–22991
  • 2300–23991
  • 2500–25991
  • 2600–26991
  • 2700–27991
  • 2800–28991
  • 20
  • number theory18
  • dp17
  • binary search7
  • combinatorics6
  • two pointers6
  • games5
  • bitmasks5
  • data structures5
  • interactive3
  • dsu3
  • trees3
  • probabilities3
  • dfs and similar2
  • graphs2
  • *special2
  • fft1
  • divide and conquer1
  • communication1
  • expression parsing1
  • hashing1
  • graph matchings1
  • Other (1 tag)1
  • 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.

    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 17/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)

    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 25/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 10/day in 2026)

    +38
    1973
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)38+1651935
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)389+1151770
    2025-11-10 17:05Codeforces Round 1063 (Div. 2)65+3211655
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)1226+2261334
    2023-01-05 16:35Codeforces Round 842 (Div. 2)7464+651108
    2023-01-03 17:05Hello 20236900+1621043
    2022-12-16 16:35Educational Codeforces Round 140 (Rated for Div. 2)11044+79881