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_istil

Open on Codeforces · Unique solved

Rating2536· 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
28
Unique solved
357
Submissions (all)
756
Years with activity
2023–2026

Solved by problem rating

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

  • 800–89930
  • 900–9997
  • 1000–10998
  • 1100–11997
  • 1200–129914
  • 1300–13998
  • 1400–149914

Solved by topic

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

  • greedy152
  • math142
  • dp134
  • constructive algorithms102
  • data structures85
  • implementation73
  • brute force

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-23 17:05Codeforces Round 1082 (Div. 1)100+332536
2026-02-11 17:35Codeforces Round 1079 (Div. 1)140+112503
2025-12-27 17:35Good Bye 2025749-1002492
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)143+42592
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)
1500–1599
5
  • 1600–169910
  • 1700–179919
  • 1800–189911
  • 1900–199914
  • 2000–209914
  • 2100–219916
  • 2200–229912
  • 2300–239918
  • 2400–249917
  • 2500–259924
  • 2600–269923
  • 2700–279919
  • 2800–28997
  • 2900–299912
  • 3000–309913
  • 3100–31996
  • 3200–32999
  • 3300–33997
  • 3400–34999
  • 3500–35994
  • 72
  • combinatorics63
  • graphs51
  • sortings45
  • binary search43
  • trees43
  • dfs and similar40
  • bitmasks34
  • number theory28
  • divide and conquer24
  • dsu20
  • games20
  • strings17
  • two pointers16
  • interactive15
  • probabilities13
  • shortest paths12
  • geometry9
  • fft8
  • hashing8
  • matrices6
  • ternary search5
  • Other (5 tags)13
  • 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 16/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 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 20/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 17/day in 2026)

    414
    -86
    2588
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)76+432674
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)273-482631
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)132+92679
    2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)71+762670
    2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)203-192594
    2025-02-11 16:35Codeforces Round 1004 (Div. 1)267-732613
    2025-01-04 17:05Hello 2025195-232686