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Top rated · Stats

Dalek_of_Rivia

Open on Codeforces · Unique solved

Rating2376· International 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
67
Unique solved
860
Submissions (all)
1,826
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.

  • Unrated212
  • 800–899122
  • 900–99917
  • 1000–109928
  • 1100–119938
  • 1200–129934
  • 1300–139941

Solved by topic

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

  • greedy362
  • math306
  • constructive algorithms214
  • dp149
  • implementation141
  • brute force139
  • data structures

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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)290-42376
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)244+212380
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)280-192359
2026-02-23 17:05Codeforces Round 1082 (Div. 1)263-212378
2026-02-11 17:35Codeforces Round 1079 (Div. 1)
1400–1499
41
  • 1500–159928
  • 1600–169921
  • 1700–179941
  • 1800–189942
  • 1900–199936
  • 2000–209918
  • 2100–219926
  • 2200–229922
  • 2300–239915
  • 2400–249924
  • 2500–259918
  • 2600–269913
  • 2700–27996
  • 2800–28993
  • 2900–29993
  • 3000–30992
  • 3100–31991
  • 3200–32993
  • 3300–33993
  • 3400–34991
  • 3500–35991
  • 94
  • sortings94
  • binary search84
  • number theory81
  • bitmasks64
  • combinatorics58
  • graphs55
  • dfs and similar52
  • strings49
  • trees47
  • two pointers46
  • games38
  • interactive37
  • geometry20
  • divide and conquer19
  • dsu19
  • probabilities14
  • shortest paths11
  • hashing7
  • matrices5
  • graph matchings5
  • fft4
  • Other (6 tags)14
  • 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 24/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 46/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 47/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 23/day in 2026)

    52
    +167
    2399
    2026-01-29 17:35Codeforces Round 1077 (Div. 1)465-662232
    2026-01-17 17:35Codeforces Round 1073 (Div. 1)129+1172298
    2026-01-07 17:35Hello 20261254-692181
    2025-12-27 17:35Good Bye 2025345+612250
    2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)696-142189
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)185+752203
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)753-972128