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Top rated · Stats

lmx111

Open on Codeforces · Unique solved

Rating2120· 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
38
Unique solved
2,054
Submissions (all)
4,008
Years with activity
2023–2025

Solved by problem rating

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

  • Unrated554
  • 800–899262
  • 900–99961
  • 1000–109951
  • 1100–119979
  • 1200–129971
  • 1300–139980

Solved by topic

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

  • greedy674
  • math547
  • constructive algorithms398
  • implementation382
  • brute force334
  • dp330
  • 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
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)422+812120
2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)100+952039
2025-04-03 16:35Educational Codeforces Round 177 (Rated for Div. 2)232+761944
2025-01-22 14:05Codeforces Round 1000 (Div. 2)640+391868
2025-01-20 17:35IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)
1400–1499
77
  • 1500–159963
  • 1600–169966
  • 1700–179971
  • 1800–189965
  • 1900–199993
  • 2000–209990
  • 2100–219976
  • 2200–229974
  • 2300–239956
  • 2400–249960
  • 2500–259933
  • 2600–269927
  • 2700–279915
  • 2800–289910
  • 2900–29995
  • 3000–30999
  • 3100–31993
  • 3200–32991
  • 3300–33992
  • 255
  • binary search208
  • sortings195
  • graphs183
  • dfs and similar156
  • number theory138
  • trees124
  • two pointers106
  • bitmasks100
  • strings94
  • combinatorics92
  • games71
  • dsu57
  • interactive54
  • geometry48
  • shortest paths47
  • flows42
  • divide and conquer42
  • hashing25
  • ternary search18
  • graph matchings17
  • probabilities15
  • Other (10 tags)52
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 42/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 110/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 36/day in 2025)

    1727
    -15
    1829
    2025-01-17 16:35Codeforces Round 997 (Div. 2)275+1051844
    2024-10-20 11:05Codeforces Round 980 (Div. 2)5102-1391739
    2024-10-19 16:20Codeforces Round 979 (Div. 2)509+381878
    2024-10-14 16:35Educational Codeforces Round 170 (Rated for Div. 2)1419-241840
    2024-09-27 16:05Codeforces Round 975 (Div. 2)311+601864
    2024-09-20 16:35Codeforces Round 973 (Div. 2)398+931804
    2024-09-14 16:35Codeforces Round 972 (Div. 2)2421-281711