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Top rated · Stats

Kleder

Open on Codeforces · Unique solved

Rating2244· 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
53
Unique solved
477
Submissions (all)
1,007
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.

  • Unrated141
  • 800–89981
  • 900–99910
  • 1000–109917
  • 1100–119924
  • 1200–129926
  • 1300–139922

Solved by topic

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

  • greedy187
  • math150
  • constructive algorithms103
  • brute force76
  • dp75
  • implementation70
  • sortings

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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)391+62244
2026-02-23 17:05Codeforces Round 1082 (Div. 1)492-602238
2026-02-11 17:35Codeforces Round 1079 (Div. 1)120+1072298
2026-01-29 17:35Codeforces Round 1077 (Div. 1)315+52191
2026-01-07 17:35Hello 2026396
1400–1499
17
  • 1500–159916
  • 1600–169920
  • 1700–179919
  • 1800–189914
  • 1900–199917
  • 2000–209911
  • 2100–219910
  • 2200–22998
  • 2300–239910
  • 2400–24994
  • 2500–25997
  • 2700–27992
  • 2800–28991
  • 60
  • data structures51
  • binary search46
  • number theory38
  • combinatorics32
  • strings28
  • bitmasks27
  • two pointers26
  • dfs and similar26
  • games22
  • graphs21
  • trees20
  • geometry11
  • interactive10
  • dsu9
  • probabilities7
  • ternary search5
  • hashing5
  • graph matchings4
  • divide and conquer4
  • flows3
  • 2-sat3
  • Other (6 tags)7
  • 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 13/day in 2022)

    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 14/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 40/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 30/day in 2026)

    +57
    2186
    2025-12-27 17:35Good Bye 20251603-692129
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)172+872198
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)503-172111
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)669-12128
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)490+502129
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)857-862079
    2025-08-24 16:35Codeforces Round 1044 (Div. 2)64+882165