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Top rated · Stats

hengliao

Open on Codeforces · Unique solved

Rating2367· International 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
543
Submissions (all)
1,297
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.

  • Unrated57
  • 800–89962
  • 900–99914
  • 1000–109912
  • 1100–119923
  • 1200–129925
  • 1300–139923

Solved by topic

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

  • greedy225
  • math221
  • constructive algorithms140
  • dp127
  • implementation121
  • data structures117

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
2026-02-23 17:05Codeforces Round 1082 (Div. 1)346-512367
2026-01-29 17:35Codeforces Round 1077 (Div. 1)233-312418
2026-01-07 17:35Hello 2026377-262449
2025-12-27 17:35Good Bye 2025403-312475
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)231-17
1400–1499
27
  • 1500–159915
  • 1600–169921
  • 1700–179930
  • 1800–189931
  • 1900–199929
  • 2000–209932
  • 2100–219922
  • 2200–229931
  • 2300–239929
  • 2400–249925
  • 2500–259915
  • 2600–26998
  • 2700–27993
  • 2800–28992
  • 2900–29994
  • 3000–30992
  • 3100–31991
  • brute force
    102
  • binary search77
  • sortings62
  • number theory60
  • dfs and similar60
  • graphs55
  • trees51
  • combinatorics50
  • bitmasks42
  • two pointers36
  • strings31
  • dsu30
  • games20
  • divide and conquer20
  • interactive16
  • geometry16
  • hashing15
  • shortest paths11
  • ternary search10
  • probabilities8
  • fft5
  • matrices5
  • Other (5 tags)17
  • 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 13/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 29/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 30/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 17/day in 2026)

    2506
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)107+452523
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)152+412478
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)73+1442437
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)437-312293
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)384+182324
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)356-202306
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)820-582326