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Top rated · Stats

shakhnoov

Open on Codeforces · Unique solved

Rating2138· 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
86
Unique solved
825
Submissions (all)
4,021
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.

  • Unrated14
  • 800–899173
  • 900–99940
  • 1000–109948
  • 1100–119949
  • 1200–129945
  • 1300–139944

Solved by topic

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

  • greedy389
  • math360
  • implementation235
  • constructive algorithms212
  • brute force189
  • dp166
  • data structures

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
2024-04-13 16:35Codeforces Round 939 (Div. 2)63+1022138
2024-04-12 16:35Educational Codeforces Round 164 (Rated for Div. 2)319+282036
2024-04-06 17:35Codeforces Global Round 25784+382008
2024-03-15 16:35Educational Codeforces Round 163 (Rated for Div. 2)1995-911970
2024-02-23 16:35Educational Codeforces Round 162 (Rated for Div. 2)
1400–1499
47
  • 1500–159935
  • 1600–169945
  • 1700–179947
  • 1800–189944
  • 1900–199943
  • 2000–209936
  • 2100–219922
  • 2200–229928
  • 2300–239917
  • 2400–249920
  • 2500–259913
  • 2600–26993
  • 2700–27991
  • 2800–28997
  • 2900–29991
  • 3000–30992
  • 3100–31991
  • 125
  • binary search114
  • sortings110
  • number theory92
  • strings80
  • two pointers70
  • graphs67
  • bitmasks62
  • dfs and similar60
  • combinatorics56
  • trees43
  • games27
  • geometry23
  • *special22
  • dsu21
  • interactive19
  • shortest paths18
  • divide and conquer13
  • probabilities12
  • hashing12
  • flows8
  • graph matchings5
  • Other (10 tags)28
  • 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.

    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 87/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 117/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 61/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 61/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)

    99
    +92
    2061
    2024-02-17 17:35think-cell Round 12576-1161969
    2024-02-15 16:35Codeforces Round 926 (Div. 2)181+432085
    2024-02-11 11:35Codeforces Round 924 (Div. 2)157+542042
    2023-12-18 16:35Educational Codeforces Round 160 (Rated for Div. 2)764-451988
    2023-12-16 16:35Codeforces Round 915 (Div. 2)309+32033
    2023-12-09 18:05Codeforces Round 914 (Div. 2)85+952030
    2023-11-19 16:35Codeforces Round 910 (Div. 2)693-291935