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Top rated · Stats

mickeyjung

Open on Codeforces · Unique solved

Rating2854· International 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
54
Unique solved
447
Submissions (all)
1,027
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated1
  • 800–89961
  • 900–9998
  • 1000–109917
  • 1100–119915
  • 1200–129917
  • 1300–139925

Solved by topic

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

  • greedy243
  • math199
  • constructive algorithms135
  • dp126
  • data structures105
  • implementation96
  • brute force

Rating changes

2022

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

Jan
Feb
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Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)31+392854
2026-02-11 17:35Codeforces Round 1079 (Div. 1)51+132815
2026-01-29 17:35Codeforces Round 1077 (Div. 1)57+02802
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)80+62802
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)
1400–1499
19
  • 1500–159911
  • 1600–169914
  • 1700–179931
  • 1800–189921
  • 1900–199930
  • 2000–209924
  • 2100–219925
  • 2200–229914
  • 2300–239924
  • 2400–249919
  • 2500–259920
  • 2600–269913
  • 2700–27996
  • 2800–28998
  • 2900–29998
  • 3000–30993
  • 3100–31994
  • 3200–32994
  • 3300–33992
  • 3400–34991
  • 3500–35992
  • 93
  • sortings74
  • binary search69
  • graphs56
  • dfs and similar48
  • bitmasks47
  • combinatorics41
  • number theory41
  • trees40
  • two pointers38
  • games31
  • strings27
  • dsu23
  • interactive21
  • geometry18
  • shortest paths16
  • probabilities13
  • divide and conquer11
  • hashing6
  • flows5
  • matrices5
  • graph matchings4
  • Other (5 tags)8
  • 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.

    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 2/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 52/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 20/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 29/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 11/day in 2026)

    36
    +92
    2796
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)87+182704
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)39+1292686
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)336-912557
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)48+1102648
    2025-03-23 08:05Codeforces Round 1012 (Div. 1)253-892538
    2025-02-11 16:35Codeforces Round 1004 (Div. 1)206-492627
    2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)91+582676