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Top rated · Stats

Tony_Tung

Open on Codeforces · Unique solved

Rating2209· 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
49
Unique solved
247
Submissions (all)
472
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.

  • Unrated12
  • 800–89981
  • 900–99915
  • 1000–109914
  • 1100–119917
  • 1200–129917
  • 1300–139915

Solved by topic

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

  • greedy129
  • math104
  • implementation73
  • brute force64
  • constructive algorithms49
  • dp41
  • 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
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-03-14 16:35Codeforces Round 1086 (Div. 2)30+1212209
2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)39+1482088
2025-12-27 17:35Good Bye 20254246-1261940
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)904-42066
2025-12-11 16:35Codeforces Round 1070 (Div. 2)241
1400–1499
14
  • 1500–15997
  • 1600–169911
  • 1700–17996
  • 1800–18997
  • 1900–19994
  • 2000–20992
  • 2100–21994
  • 2200–22994
  • 2300–23994
  • 2400–24995
  • 2500–25992
  • 2600–26993
  • 2700–27992
  • 2800–28991
  • 37
  • sortings37
  • strings28
  • binary search26
  • two pointers21
  • bitmasks17
  • number theory16
  • graphs16
  • trees14
  • dsu13
  • combinatorics13
  • dfs and similar12
  • games12
  • divide and conquer6
  • geometry5
  • matrices4
  • interactive3
  • probabilities2
  • flows2
  • shortest paths2
  • ternary search2
  • meet-in-the-middle2
  • Other (3 tags)3
  • 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 6/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 19/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 10/day in 2026)

    +18
    2070
    2025-12-05 16:35Codeforces Round 1068 (Div. 2)163+492052
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)26+2002003
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)281+1121803
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)448+861691
    2024-09-01 16:50Codeforces Round 970 (Div. 3)935+371605
    2024-08-15 16:35Educational Codeforces Round 169 (Rated for Div. 2)3375-21568
    2024-08-13 16:55Codeforces Round 966 (Div. 3)4218-491570