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MaddyBeltran

Open on Codeforces · Unique solved

Rating2204· 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
52
Unique solved
207
Submissions (all)
496
Years with activity
2018–2024

Solved by problem rating

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

  • 800–89936
  • 900–99914
  • 1000–109911
  • 1100–119912
  • 1200–129911
  • 1300–139911
  • 1400–149915

Solved by topic

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

  • greedy110
  • math86
  • constructive algorithms65
  • implementation54
  • dp49
  • brute force37
  • data structures

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)1106-622204
2024-06-30 17:35EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)217+762266
2024-04-06 17:35Codeforces Global Round 25872-372190
2023-12-30 16:50Good Bye 2023500+392227
2023-07-06 16:50Codeforces Round 882 (Div. 2)12
1500–1599
13
  • 1600–169910
  • 1700–179914
  • 1800–189911
  • 1900–199912
  • 2000–209910
  • 2100–21994
  • 2200–22995
  • 2300–23993
  • 2400–24994
  • 2500–25998
  • 2600–26991
  • 2800–28991
  • 3300–33991
  • 33
  • sortings30
  • number theory20
  • binary search20
  • bitmasks18
  • two pointers18
  • dfs and similar15
  • graphs15
  • trees13
  • strings12
  • combinatorics12
  • games9
  • dsu9
  • divide and conquer8
  • geometry8
  • interactive5
  • shortest paths5
  • hashing4
  • matrices2
  • probabilities2
  • flows2
  • schedules1
  • Other (4 tags)4
  • 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.

    2019

    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.

    2020

    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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 9/day in 2018)

    2019

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
    Oct
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    Dec

    LessMore (max 13/day in 2019)

    2020

    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 15/day in 2020)

    2021

    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 18/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
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    Dec

    LessMore (max 10/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 14/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 12/day in 2024)

    +182
    2188
    2023-06-29 16:35Educational Codeforces Round 151 (Rated for Div. 2)12+2722006
    2023-03-04 19:35Codeforces Round 856 (Div. 2)3498-1451734
    2023-02-12 10:35Codeforces Round 852 (Div. 2)3019-1391879
    2023-01-08 16:35Educational Codeforces Round 141 (Rated for Div. 2)332+132018
    2022-12-27 16:35Codeforces Round 841 (Div. 2) and Divide by Zero 2022137+762005
    2022-11-20 17:05Pinely Round 1 (Div. 1 + Div. 2)7830-3021929
    2022-10-29 11:55Codeforces Round 831 (Div. 1 + Div. 2)408-222231