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leolin0214

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
32
Unique solved
385
Submissions (all)
834
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.

  • Unrated44
  • 800–89987
  • 900–99915
  • 1000–109916
  • 1100–119925
  • 1200–129919
  • 1300–139917

Solved by topic

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

  • greedy173
  • math148
  • implementation123
  • constructive algorithms106
  • brute force76
  • dp66
  • 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
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-11 17:35Codeforces Round 1079 (Div. 1)323+22227
2025-12-27 17:35Good Bye 2025208+1252225
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)1714-912100
2025-12-06 10:15Codeforces Round 1069 (Div. 1)299+112191
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)142
1400–1499
17
  • 1500–159920
  • 1600–169912
  • 1700–179918
  • 1800–189916
  • 1900–199923
  • 2000–209913
  • 2100–21999
  • 2200–22999
  • 2300–23996
  • 2400–24999
  • 2500–25993
  • 2600–26993
  • 2700–27991
  • 2800–28993
  • 61
  • sortings56
  • binary search53
  • strings31
  • graphs31
  • dfs and similar29
  • number theory29
  • trees27
  • bitmasks26
  • two pointers26
  • interactive22
  • games21
  • combinatorics20
  • divide and conquer18
  • dsu15
  • geometry9
  • probabilities7
  • hashing5
  • ternary search4
  • shortest paths3
  • communication3
  • graph matchings2
  • Other (8 tags)9
  • 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 34/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 52/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 13/day in 2026)

    +156
    2180
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)401+632024
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)527+161961
    2025-11-10 17:05Codeforces Round 1063 (Div. 2)2575-1211945
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)1395-682066
    2025-02-11 16:35Codeforces Round 1004 (Div. 1)824-832134
    2024-12-28 17:35Good Bye 2024: 2025 is NEAR1006-432217
    2024-12-20 16:35Codeforces Round 994 (Div. 2)10+1712260