CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

lzm0107

Open on Codeforces · Unique solved

Rating2429· Grandmaster

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
26
Unique solved
999
Submissions (all)
2,069
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.

  • Unrated3
  • 800–899106
  • 900–99924
  • 1000–109924
  • 1100–119937
  • 1200–129934
  • 1300–139943

Solved by topic

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

  • greedy473
  • math383
  • dp282
  • data structures271
  • implementation243
  • brute force242
  • constructive algorithms

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
2026-01-29 17:35Codeforces Round 1077 (Div. 1)155+132429
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)222+322416
2025-12-06 10:15Codeforces Round 1069 (Div. 1)424-932384
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)111+702477
2025-11-16 16:35Codeforces Round 1064 (Div. 1)
1400–1499
49
  • 1500–159936
  • 1600–169955
  • 1700–179961
  • 1800–189951
  • 1900–199989
  • 2000–209958
  • 2100–219960
  • 2200–229952
  • 2300–239947
  • 2400–249931
  • 2500–259934
  • 2600–269943
  • 2700–279915
  • 2800–289913
  • 2900–29998
  • 3000–30998
  • 3100–31995
  • 3200–32993
  • 3300–33991
  • 3400–34993
  • 3500–35996
  • 233
  • binary search168
  • sortings158
  • dfs and similar127
  • graphs127
  • trees109
  • number theory108
  • combinatorics94
  • bitmasks91
  • strings81
  • two pointers80
  • divide and conquer53
  • dsu43
  • shortest paths38
  • interactive31
  • games30
  • hashing24
  • probabilities21
  • geometry13
  • string suffix structures11
  • flows11
  • matrices11
  • Other (8 tags)32
  • 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 14/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 35/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 49/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 9/day in 2026)

    236
    -7
    2407
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)96+1122414
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)308+402302
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)359+482262
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)290+422214
    2025-06-23 16:35Educational Codeforces Round 180 (Rated for Div. 2)126+262172
    2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 202555+1032146
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)273+782043