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lnw143

Open on Codeforces · Unique solved

Rating2282· 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
9
Unique solved
343
Submissions (all)
983
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.

  • Unrated13
  • 800–89925
  • 900–9994
  • 1000–10996
  • 1100–11997
  • 1200–12998
  • 1300–139912

Solved by topic

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

  • greedy136
  • math124
  • dp102
  • data structures93
  • constructive algorithms81
  • implementation71
  • brute force

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
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)394+12282
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)801-562281
2025-09-24 14:50Codeforces Round 1053 (Div. 1)85+1652337
2025-03-23 08:05Codeforces Round 1012 (Div. 2)2+3302172
2024-11-15 14:35Codeforces Round 987 (Div. 2)
1400–1499
13
  • 1500–15993
  • 1600–16999
  • 1700–179915
  • 1800–18999
  • 1900–199912
  • 2000–209914
  • 2100–219913
  • 2200–22999
  • 2300–239927
  • 2400–249913
  • 2500–259921
  • 2600–269915
  • 2700–27998
  • 2800–289917
  • 2900–29999
  • 3000–309910
  • 3100–319910
  • 3200–32999
  • 3300–33998
  • 3400–34994
  • 3500–359920
  • 60
  • trees53
  • graphs50
  • dfs and similar46
  • combinatorics42
  • binary search38
  • sortings38
  • bitmasks32
  • number theory27
  • strings26
  • interactive23
  • probabilities23
  • two pointers20
  • dsu19
  • games18
  • string suffix structures15
  • hashing15
  • divide and conquer15
  • geometry12
  • flows11
  • graph matchings8
  • shortest paths8
  • Other (8 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 10/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 65/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 24/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 15/day in 2026)

    147
    +238
    1842
    2024-10-20 11:05Codeforces Round 980 (Div. 2)1104+1371604
    2024-10-06 08:05Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)124+4681467
    2024-05-31 12:05Codeforces Round 949 (Div. 2)406+535999
    2023-12-30 16:50Good Bye 20238844+464464