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lyh3.14

Open on Codeforces · Unique solved

Rating2227· 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
17
Unique solved
390
Submissions (all)
1,162
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.

  • Unrated47
  • 800–89927
  • 900–9994
  • 1000–109911
  • 1100–11998
  • 1200–129912
  • 1300–13999

Solved by topic

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

  • greedy145
  • math143
  • data structures111
  • dp109
  • constructive algorithms80
  • brute force68
  • implementation

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
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-05-06 08:35Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)160+452227
2025-10-24 16:35Codeforces Round 1061 (Div. 2)45+892182
2025-10-19 16:35Codeforces Round 1060 (Div. 2)132+542093
2025-10-10 16:50Codeforces Round 1057 (Div. 2)535-192039
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)
1400–1499
16
  • 1500–15997
  • 1600–16994
  • 1700–179913
  • 1800–189912
  • 1900–199921
  • 2000–209915
  • 2100–219912
  • 2200–229918
  • 2300–239928
  • 2400–249920
  • 2500–259921
  • 2600–269917
  • 2700–279911
  • 2800–289912
  • 2900–29996
  • 3000–309912
  • 3100–31994
  • 3200–329911
  • 3300–33997
  • 3400–34992
  • 3500–35993
  • 62
  • graphs60
  • binary search56
  • trees50
  • combinatorics47
  • dfs and similar45
  • number theory39
  • sortings38
  • bitmasks28
  • two pointers27
  • divide and conquer24
  • dsu22
  • strings21
  • games15
  • probabilities15
  • shortest paths14
  • hashing9
  • geometry8
  • string suffix structures6
  • interactive6
  • *special6
  • ternary search5
  • Other (6 tags)19
  • 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 31/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 25/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 34/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 20/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 16/day in 2026)

    1695
    -73
    2058
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)367+552131
    2025-04-28 16:35Educational Codeforces Round 178 (Rated for Div. 2)263+72076
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)352+142069
    2025-01-26 17:05Ethflow Round 1 (Codeforces Round 1001, Div. 1 + Div. 2)332+1472055
    2024-10-20 11:05Codeforces Round 980 (Div. 2)174+701908
    2024-10-06 08:05Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)541+531838
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)1768+681785