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LNight121

Open on Codeforces · Unique solved

Rating2131· 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
26
Unique solved
408
Submissions (all)
922
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.

  • Unrated41
  • 800–89980
  • 900–99914
  • 1000–109918
  • 1100–119918
  • 1200–129924
  • 1300–139926

Solved by topic

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

  • greedy207
  • math149
  • constructive algorithms97
  • brute force84
  • implementation83
  • dp76
  • 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
2026-03-14 16:35Codeforces Round 1086 (Div. 2)64+1072131
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)679-62024
2026-02-26 17:05Codeforces Round 1083 (Div. 2)642-482030
2026-02-25 16:35Educational Codeforces Round 187 (Rated for Div. 2)214+262078
2026-02-23 17:05Codeforces Round 1082 (Div. 1)
1400–1499
22
  • 1500–159915
  • 1600–169914
  • 1700–179917
  • 1800–189918
  • 1900–199918
  • 2000–209916
  • 2100–21998
  • 2200–229913
  • 2300–239910
  • 2400–249911
  • 2500–25996
  • 2600–26994
  • 2700–27991
  • 2800–28995
  • 2900–29994
  • 3000–30991
  • 3100–31992
  • 3300–33992
  • 64
  • binary search49
  • sortings48
  • number theory46
  • graphs41
  • bitmasks39
  • dfs and similar33
  • strings32
  • combinatorics27
  • trees25
  • two pointers25
  • games20
  • interactive18
  • dsu11
  • divide and conquer10
  • geometry10
  • shortest paths7
  • hashing6
  • *special5
  • graph matchings5
  • flows5
  • ternary search4
  • Other (9 tags)14
  • 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 4/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 14/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 27/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 22/day in 2026)

    489
    -3
    2052
    2026-02-21 16:35Codeforces Round 1081 (Div. 2)481-262055
    2026-01-23 16:35Codeforces Round 1075 (Div. 2)109+752081
    2026-01-07 17:35Hello 20261989-672006
    2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)44+1462073
    2025-12-27 17:35Good Bye 20251028+501927
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)990+361877
    2025-10-12 17:05Codeforces Round 1058 (Div. 2)1002-261841