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Top rated · Stats

Stathis

Open on Codeforces · Unique solved

Rating2131· 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
66
Unique solved
794
Submissions (all)
2,101
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.

  • Unrated159
  • 800–899122
  • 900–99932
  • 1000–109929
  • 1100–119936
  • 1200–129936
  • 1300–139935

Solved by topic

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

  • greedy327
  • math250
  • implementation181
  • dp164
  • constructive algorithms158
  • brute force150
  • 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)692-242131
2026-04-13 16:35Codeforces Round 1093 (Div. 1)175+1052155
2026-04-07 16:50Codeforces Round 1091 (Div. 2) and CodeCraft 26335+152050
2026-03-29 16:50Codeforces Round 1089 (Div. 2)285+312035
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)
1400–1499
28
  • 1500–159941
  • 1600–169942
  • 1700–179939
  • 1800–189925
  • 1900–199955
  • 2000–209933
  • 2100–219936
  • 2200–229919
  • 2300–239910
  • 2400–24995
  • 2500–25994
  • 2600–26994
  • 2700–27992
  • 2800–28991
  • 3000–30991
  • 116
  • sortings95
  • binary search91
  • dfs and similar75
  • trees69
  • graphs65
  • bitmasks54
  • two pointers50
  • number theory50
  • strings48
  • combinatorics40
  • games28
  • divide and conquer25
  • dsu21
  • interactive21
  • shortest paths18
  • geometry14
  • *special13
  • hashing9
  • probabilities9
  • ternary search8
  • graph matchings5
  • Other (9 tags)18
  • 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 5/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 10/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 78/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 61/day in 2026)

    933
    +5
    2004
    2026-02-23 17:05Codeforces Round 1082 (Div. 1)418+501999
    2026-01-07 17:35Hello 20261408-71949
    2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)523+61956
    2025-12-27 17:35Good Bye 2025952+521950
    2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)1130+261898
    2025-12-11 16:35Codeforces Round 1070 (Div. 2)514+311872
    2025-12-05 16:35Codeforces Round 1068 (Div. 2)1024-151841