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FLY_lai

Open on Codeforces · Unique solved

Rating2509· Grandmaster

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
81
Unique solved
1,140
Submissions (all)
2,347
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.

  • Unrated27
  • 800–89998
  • 900–99918
  • 1000–109922
  • 1100–119936
  • 1200–129928
  • 1300–139927

Solved by topic

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

  • greedy441
  • dp393
  • math393
  • data structures290
  • constructive algorithms269
  • brute force220
  • graphs

Rating changes

2022

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

Jan
Feb
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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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)16+2442509
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)107+1442265
2025-09-24 14:50Codeforces Round 1053 (Div. 1)563-162121
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)1294-692137
2025-07-05 16:35Codeforces Round 1035 (Div. 2)
1400–1499
31
  • 1500–159923
  • 1600–169930
  • 1700–179934
  • 1800–189933
  • 1900–199949
  • 2000–209953
  • 2100–219955
  • 2200–229963
  • 2300–239962
  • 2400–249963
  • 2500–259970
  • 2600–269960
  • 2700–279943
  • 2800–289947
  • 2900–299927
  • 3000–309938
  • 3100–319923
  • 3200–329926
  • 3300–339925
  • 3400–34998
  • 3500–359921
  • 203
  • implementation188
  • trees182
  • dfs and similar169
  • binary search140
  • combinatorics129
  • bitmasks123
  • sortings121
  • number theory101
  • strings83
  • dsu68
  • divide and conquer67
  • two pointers67
  • games43
  • flows41
  • shortest paths41
  • interactive38
  • probabilities36
  • hashing30
  • fft27
  • string suffix structures26
  • graph matchings21
  • Other (9 tags)71
  • 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 5/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 56/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 33/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 26/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 12/day in 2026)

    19
    +154
    2206
    2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 202537+1712052
    2025-06-15 11:05Codeforces Round 1031 (Div. 2)957-431881
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)805-401924
    2025-05-24 16:35Codeforces Round 1026 (Div. 2)154+1021964
    2025-05-17 16:50Codeforces Round 1025 (Div. 2)6230-1721862
    2025-05-05 16:50Codeforces Round 1023 (Div. 2)296+132034
    2025-05-01 16:35Codeforces Round 1022 (Div. 2)171+632021