CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

Joyemang

Open on Codeforces · Unique solved

Rating2485· 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
20
Unique solved
781
Submissions (all)
2,141
Years with activity
2018–2024

Solved by problem rating

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

  • Unrated352
  • 800–89913
  • 900–9997
  • 1000–10996
  • 1100–11995
  • 1200–129912
  • 1300–13997

Solved by topic

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

  • math136
  • greedy128
  • dp114
  • implementation97
  • constructive algorithms91
  • data structures88
  • graphs

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

Count of submissions per UTC day (includes every verdict).

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-02-27 17:35Codeforces Round 854 by cybercats (Div. 1 + Div. 2)66+1162485
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)54+2072369
2023-02-01 16:35Codeforces Round 848 (Div. 2)2+2902162
2023-01-15 15:05Codeforces Round 844 (Div. 1 + Div. 2, based on VK Cup 2022 - Elimination Round)8212-2851872
2020-10-25 13:05
1400–1499
17
  • 1500–159919
  • 1600–169930
  • 1700–179929
  • 1800–189927
  • 1900–199930
  • 2000–209919
  • 2100–219932
  • 2200–229928
  • 2300–239924
  • 2400–249927
  • 2500–259919
  • 2600–269919
  • 2700–279912
  • 2800–289913
  • 2900–299912
  • 3000–30995
  • 3100–31995
  • 3200–32994
  • 3300–33996
  • 3400–34991
  • 3500–35991
  • 70
  • brute force66
  • dfs and similar58
  • binary search51
  • trees49
  • sortings41
  • combinatorics38
  • strings35
  • number theory34
  • bitmasks22
  • two pointers22
  • geometry19
  • probabilities19
  • dsu19
  • shortest paths16
  • hashing15
  • divide and conquer13
  • games12
  • interactive10
  • string suffix structures8
  • graph matchings8
  • matrices7
  • Other (7 tags)20
  • 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.

    2019

    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.

    2020

    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.

    2021

    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.

    2022

    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.

    2023

    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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 24/day in 2018)

    2019

    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 30/day in 2019)

    2020

    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 23/day in 2020)

    2021

    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 30/day in 2021)

    2022

    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 40/day in 2022)

    2023

    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 28/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 52/day in 2024)

    Codeforces Round 679 (Div. 1, based on Technocup 2021 Elimination Round 1)
    700
    -100
    2157
    2020-07-21 16:35Codeforces Round 658 (Div. 1)1005-1082257
    2020-07-04 17:15Codeforces Global Round 9152+1022365
    2020-05-12 15:05Codeforces Round 641 (Div. 1)208+792263
    2020-04-15 17:05Codeforces Round 635 (Div. 1)647-252184
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)398+292209
    2018-07-30 10:45Codeforces Round 500 (Div. 1) [based on EJOI]96+782180
    2018-05-15 16:45Codeforces Round 483 (Div. 1) [Thanks, Botan Investments and Victor Shaburov!]200+262102