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k1suxu

Open on Codeforces · Unique solved

Rating2296· 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
48
Unique solved
704
Submissions (all)
1,385
Years with activity
2021–2026

Solved by problem rating

Unique accepted problems, bucketed by catalog rating (100‑point bands). Unrated = no rating in the problem set.

  • Unrated35
  • 800–899182
  • 900–99934
  • 1000–109935
  • 1100–119944
  • 1200–129944
  • 1300–139938

Solved by topic

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

  • greedy317
  • math261
  • implementation205
  • brute force161
  • constructive algorithms158
  • dp121
  • data structures

Rating changes

2021

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

Jan
Feb
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May

Submission volume

Download all years PNG

2021

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)66+1412296
2026-01-17 17:35Codeforces Round 1073 (Div. 1)356+352155
2026-01-07 17:35Hello 2026552+432120
2025-10-12 17:05Codeforces Round 1058 (Div. 1)788-862077
2025-08-28 17:35Codeforces Round 1046 (Div. 1)332
1400–1499
34
  • 1500–159933
  • 1600–169934
  • 1700–179935
  • 1800–189931
  • 1900–199932
  • 2000–209922
  • 2100–219920
  • 2200–229914
  • 2300–239914
  • 2400–249912
  • 2500–25999
  • 2600–26992
  • 118
  • binary search104
  • sortings89
  • strings73
  • two pointers55
  • number theory55
  • graphs48
  • combinatorics46
  • bitmasks45
  • dfs and similar40
  • trees30
  • games27
  • dsu23
  • geometry19
  • shortest paths18
  • hashing15
  • interactive12
  • divide and conquer12
  • flows8
  • 2-sat4
  • ternary search4
  • probabilities4
  • Other (6 tags)13
  • Jun
    Jul
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    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.

    2022

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    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
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    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
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    Aug
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    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
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    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
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    Apr
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    Jun
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    Aug
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    Oct
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    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
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    LessMore (max 2/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 15/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 21/day in 2023)

    2024

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 23/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 20/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    Dec

    LessMore (max 17/day in 2026)

    +43
    2163
    2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)1677-862120
    2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)439+292206
    2025-03-23 08:05Codeforces Round 1012 (Div. 1)351-202177
    2024-12-19 17:35Codeforces Global Round 28453+332197
    2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)1052-512164
    2024-09-14 16:35Codeforces Round 972 (Div. 2)17+1682215
    2024-08-30 17:05Codeforces Round 969 (Div. 1)1009-1102047