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Fostok

Open on Codeforces · Unique solved

Rating2214· 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
83
Unique solved
2,215
Submissions (all)
8,391
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.

  • Unrated189
  • 800–899495
  • 900–999127
  • 1000–1099117
  • 1100–1199153
  • 1200–1299136
  • 1300–1399136

Solved by topic

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

  • greedy1,033
  • math848
  • implementation616
  • constructive algorithms547
  • brute force470
  • dp356
  • sortings

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
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)518+12214
2025-10-24 16:35Codeforces Round 1061 (Div. 2)9+1812213
2025-10-19 16:35Codeforces Round 1060 (Div. 2)94+1032032
2025-10-12 17:05Codeforces Round 1058 (Div. 2)52+1501929
2025-10-10 16:50Codeforces Round 1057 (Div. 2)
1400–1499
131
  • 1500–1599105
  • 1600–1699107
  • 1700–1799101
  • 1800–1899100
  • 1900–199994
  • 2000–209988
  • 2100–219947
  • 2200–229950
  • 2300–239914
  • 2400–24998
  • 2500–259911
  • 2600–26991
  • 2700–27992
  • 2800–28991
  • 3100–31991
  • 3500–35991
  • 324
  • data structures305
  • binary search279
  • number theory211
  • strings190
  • two pointers160
  • dfs and similar154
  • bitmasks149
  • graphs141
  • combinatorics115
  • trees105
  • games85
  • dsu61
  • interactive55
  • geometry48
  • divide and conquer31
  • shortest paths27
  • hashing23
  • *special18
  • ternary search17
  • graph matchings12
  • probabilities11
  • Other (9 tags)50
  • 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 18/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 67/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 66/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 238/day in 2026)

    2391
    -54
    1779
    2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)1222-151833
    2025-10-05 18:35Codeforces Round 1056 (Div. 2)1017-211848
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)2091-371869
    2025-08-26 16:35Codeforces Round 1045 (Div. 2)392+641906
    2025-08-24 16:35Codeforces Round 1044 (Div. 2)788+261842
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)1757-11816
    2025-07-27 16:35Codeforces Round 1039 (Div. 2)449+791817