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Arxyj

Open on Codeforces · Unique solved

Rating2253· 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
19
Unique solved
166
Submissions (all)
306
Years with activity
2025–2026

Solved by problem rating

Unique accepted problems, bucketed by catalog rating (100‑point bands). Unrated = no rating in the problem set.

  • Unrated11
  • 800–89936
  • 900–9998
  • 1000–109910
  • 1100–119912
  • 1200–129912
  • 1300–139910

Solved by topic

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

  • greedy91
  • math63
  • constructive algorithms42
  • implementation40
  • dp32
  • brute force27
  • bitmasks

Rating changes

2025

Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2025

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)468-162253
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)1049-932269
2026-02-11 17:35Codeforces Round 1079 (Div. 1)60+1652362
2026-01-29 17:35Codeforces Round 1077 (Div. 1)407-352197
2026-01-23 16:35Codeforces Round 1075 (Div. 2)
1400–1499
11
  • 1500–15994
  • 1600–16999
  • 1700–17997
  • 1800–18996
  • 1900–19999
  • 2000–20997
  • 2100–21994
  • 2200–22993
  • 2300–23994
  • 2400–24991
  • 2500–25991
  • 2600–26991
  • 21
  • binary search20
  • data structures18
  • sortings17
  • interactive16
  • two pointers14
  • strings13
  • number theory12
  • combinatorics11
  • games8
  • dfs and similar8
  • dsu6
  • graphs6
  • trees6
  • geometry6
  • divide and conquer3
  • probabilities3
  • communication3
  • shortest paths2
  • fft1
  • expression parsing1
  • flows1
  • Other (2 tags)2
  • 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 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 12/day in 2026)

    10
    +177
    2232
    2026-01-17 17:35Codeforces Round 1073 (Div. 1)408+542055
    2025-12-11 16:35Codeforces Round 1070 (Div. 2)1653-1022001
    2025-12-05 16:35Codeforces Round 1068 (Div. 2)179+242103
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)157+422079
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)188+482037
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)65+1051989
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)2951-1041884