CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

xueman

Open on Codeforces · Unique solved

Rating2163· 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
21
Unique solved
1,505
Submissions (all)
2,950
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.

  • Unrated257
  • 800–899103
  • 900–99945
  • 1000–109953
  • 1100–119989
  • 1200–129975
  • 1300–139979

Solved by topic

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

  • greedy640
  • math514
  • dp343
  • constructive algorithms317
  • implementation316
  • brute force305
  • 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
2025-09-09 16:35Codeforces Round 1049 (Div. 2)27+1462163
2025-08-28 17:35Codeforces Round 1046 (Div. 1)404+782017
2025-08-26 16:35Codeforces Round 1045 (Div. 2)2421-911939
2025-08-24 16:35Codeforces Round 1044 (Div. 2)286+352030
2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)
1400–1499
68
  • 1500–159956
  • 1600–169965
  • 1700–179991
  • 1800–189975
  • 1900–199999
  • 2000–209967
  • 2100–219958
  • 2200–229956
  • 2300–239936
  • 2400–249943
  • 2500–259938
  • 2600–269926
  • 2700–279914
  • 2800–28996
  • 2900–29995
  • 3300–33991
  • 260
  • binary search203
  • sortings179
  • graphs154
  • number theory146
  • dfs and similar140
  • bitmasks122
  • combinatorics122
  • trees117
  • two pointers108
  • strings99
  • games58
  • dsu56
  • divide and conquer51
  • interactive50
  • flows46
  • geometry29
  • graph matchings27
  • hashing25
  • probabilities22
  • shortest paths21
  • ternary search18
  • Other (10 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 3/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 26/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 44/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 35/day in 2026)

    690
    +38
    1995
    2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)599+1111957
    2025-01-22 14:05Codeforces Round 1000 (Div. 2)777+301846
    2025-01-20 17:35IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)995+621816
    2025-01-17 16:35Codeforces Round 997 (Div. 2)1232+121754
    2024-05-30 16:35Educational Codeforces Round 166 (Rated for Div. 2)660+761742
    2024-05-26 16:35Codeforces Round 948 (Div. 2)754+821666
    2024-05-20 16:50Codeforces Round 946 (Div. 3)383+991584