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Killer250104

Open on Codeforces · Unique solved

Rating2216· 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
49
Unique solved
682
Submissions (all)
1,848
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated80
  • 800–89958
  • 900–99914
  • 1000–109920
  • 1100–119913
  • 1200–129923
  • 1300–139917

Solved by topic

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

  • greedy219
  • dp200
  • math199
  • data structures153
  • constructive algorithms112
  • brute force111
  • implementation

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2022-04-09 16:35Educational Codeforces Round 126 (Rated for Div. 2)16+1402216
2021-10-24 12:35Codeforces Round 750 (Div. 2)37+1412076
2021-06-25 17:50Codeforces Round 728 (Div. 2)21+2011935
2021-06-20 12:05Codeforces Round 727 (Div. 2)1617-341734
2021-06-18 16:35Codeforces Round 726 (Div. 2)3206
1400–1499
22
  • 1500–159916
  • 1600–169929
  • 1700–179921
  • 1800–189924
  • 1900–199925
  • 2000–209943
  • 2100–219932
  • 2200–229951
  • 2300–239935
  • 2400–249958
  • 2500–259938
  • 2600–269923
  • 2700–279916
  • 2800–289912
  • 2900–29996
  • 3000–30993
  • 3100–31992
  • 3500–35991
  • 106
  • sortings83
  • graphs77
  • binary search76
  • dfs and similar76
  • trees71
  • bitmasks57
  • number theory56
  • combinatorics48
  • strings44
  • dsu37
  • two pointers35
  • divide and conquer34
  • shortest paths24
  • hashing21
  • probabilities21
  • interactive18
  • geometry17
  • games12
  • flows12
  • string suffix structures7
  • meet-in-the-middle5
  • Other (9 tags)21
  • 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.

    2021

    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.

    2022

    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.

    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.

    May
    Jun
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    Aug
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    Dec

    LessMore (max 25/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    LessMore (max 29/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
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    Apr
    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 21/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
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    Dec

    LessMore (max 37/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 26/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 22/day in 2025)

    -74
    1768
    2021-06-13 18:35Codeforces LATOKEN Round 1 (Div. 1 + Div. 2)799+601842
    2021-06-06 16:35Codeforces Round 724 (Div. 2)2708-861782
    2021-05-30 16:50Deltix Round, Spring 2021 (open for everyone, rated, Div. 1 + Div. 2)1103+341868
    2021-05-28 16:35Codeforces Round 723 (Div. 2)2230-721834
    2021-04-29 16:35Educational Codeforces Round 108 (Rated for Div. 2)44+2261906
    2021-04-23 17:20Contest 2050 and Codeforces Round 718 (Div. 1 + Div. 2)2789-271680
    2021-04-19 15:50Codeforces Round 716 (Div. 2)2257-571707