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Top rated · Stats

LYY_yyyy

Open on Codeforces · Unique solved

Rating2397· 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
41
Unique solved
629
Submissions (all)
1,527
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.

  • Unrated16
  • 800–89949
  • 900–99910
  • 1000–109912
  • 1100–119914
  • 1200–129919
  • 1300–139916

Solved by topic

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

  • greedy269
  • math210
  • dp200
  • constructive algorithms171
  • data structures162
  • implementation113

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)121+772397
2025-12-27 17:35Good Bye 2025836-572320
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)145+922377
2025-12-06 10:15Codeforces Round 1069 (Div. 1)216+202285
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)
1400–1499
15
  • 1500–159913
  • 1600–169913
  • 1700–179927
  • 1800–189969
  • 1900–199976
  • 2000–209935
  • 2100–219922
  • 2200–229929
  • 2300–239934
  • 2400–249930
  • 2500–259920
  • 2600–269929
  • 2700–279910
  • 2800–289915
  • 2900–29997
  • 3000–309918
  • 3100–31999
  • 3200–329911
  • 3300–33996
  • 3400–34992
  • 3500–35993
  • brute force
    103
  • graphs100
  • dfs and similar85
  • binary search84
  • sortings83
  • trees81
  • combinatorics72
  • bitmasks58
  • number theory54
  • two pointers51
  • strings41
  • dsu40
  • divide and conquer26
  • games26
  • hashing25
  • shortest paths24
  • interactive22
  • probabilities16
  • geometry16
  • string suffix structures10
  • ternary search9
  • flows5
  • Other (6 tags)13
  • 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 16/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 26/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 27/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 15/day in 2026)

    245
    +60
    2265
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)240+682205
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)1029-552137
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)654-92192
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)772-122201
    2024-12-28 17:35Good Bye 2024: 2025 is NEAR336+872213
    2024-09-27 16:05Codeforces Round 975 (Div. 1)734-442126
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)464+512170