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xyloph0nex17

Open on Codeforces · Unique solved

Rating2177· 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
46
Unique solved
487
Submissions (all)
1,466
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated11
  • 800–89987
  • 900–99917
  • 1000–10997
  • 1100–119924
  • 1200–129922
  • 1300–139922

Solved by topic

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

  • greedy197
  • math169
  • constructive algorithms136
  • dp108
  • implementation94
  • data structures93
  • brute force

Rating changes

2021

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

2021

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-04-30 17:05Codeforces Round 942 (Div. 1)258+1012177
2024-04-27 16:35Codeforces Round 941 (Div. 1)787-412076
2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-2377+872117
2024-04-13 16:35Codeforces Round 939 (Div. 2)53+1622030
2024-04-06 17:35Codeforces Global Round 252229
1400–1499
21
  • 1500–15998
  • 1600–169913
  • 1700–179922
  • 1800–189919
  • 1900–199915
  • 2000–209919
  • 2100–219911
  • 2200–229919
  • 2300–239917
  • 2400–249914
  • 2500–259917
  • 2600–26998
  • 2700–279910
  • 2800–289914
  • 2900–299910
  • 3000–309927
  • 3100–319911
  • 3200–32998
  • 3300–33998
  • 3400–34994
  • 3500–35992
  • 86
  • sortings71
  • graphs55
  • trees53
  • bitmasks47
  • binary search46
  • combinatorics44
  • dfs and similar41
  • number theory39
  • strings29
  • divide and conquer26
  • two pointers23
  • probabilities17
  • games15
  • dsu15
  • interactive10
  • flows10
  • geometry9
  • hashing9
  • string suffix structures8
  • shortest paths6
  • fft5
  • Other (7 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.

    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
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 16/day in 2021)

    2022

    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 31/day in 2022)

    2023

    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 77/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 41/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 12/day in 2025)

    -53
    1868
    2023-10-08 11:35Codeforces Round 902 (Div. 2, based on COMPFEST 15 - Final Round)190+491921
    2023-09-11 16:35Codeforces Round 897 (Div. 2)712+131872
    2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)644+1051859
    2022-09-29 16:35Educational Codeforces Round 136 (Rated for Div. 2)1993-661754
    2022-09-23 14:05Codeforces Round 822 (Div. 2)720+61820
    2022-09-19 16:35Codeforces Round 821 (Div. 2)273+961814
    2022-09-08 16:35Educational Codeforces Round 135 (Rated for Div. 2)1074+111718