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Top rated · Stats

Ramzel

Open on Codeforces · Unique solved

Rating2121· 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
18
Unique solved
295
Submissions (all)
770
Years with activity
2018–2023

Solved by problem rating

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

  • Unrated130
  • 800–89929
  • 900–9994
  • 1000–10998
  • 1100–119910
  • 1200–129912
  • 1300–13997

Solved by topic

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

  • greedy74
  • implementation51
  • math49
  • constructive algorithms40
  • dp29
  • data structures27
  • brute force

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
2020-09-12 15:45Codeforces Round 670 (Div. 2)201+352121
2020-09-08 16:35Codeforces Round 669 (Div. 2)179+682086
2020-09-06 16:35Codeforces Round 668 (Div. 1)648+82018
2020-08-30 16:35Codeforces Round 666 (Div. 1)956-492010
2020-08-12 16:35Codeforces Round 664 (Div. 1)605
1400–1499
10
  • 1500–159911
  • 1600–16998
  • 1700–179914
  • 1800–18999
  • 1900–199910
  • 2000–20995
  • 2100–21997
  • 2200–22999
  • 2300–23995
  • 2400–24995
  • 2500–25992
  • 27
  • sortings25
  • binary search22
  • dfs and similar20
  • graphs17
  • bitmasks14
  • strings13
  • two pointers13
  • trees12
  • dsu8
  • number theory8
  • geometry4
  • 2-sat3
  • hashing3
  • games3
  • shortest paths3
  • divide and conquer2
  • matrices2
  • flows2
  • graph matchings2
  • combinatorics2
  • probabilities1
  • Other (3 tags)3
  • 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
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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
    Jul
    Aug
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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.

    May
    Jun
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    Aug
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    Dec

    LessMore (max 28/day in 2018)

    2019

    Download PNG

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

    Jan
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    Jun
    Jul
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    LessMore (max 16/day in 2019)

    2020

    Download PNG

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

    Jan
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    May
    Jun
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    Aug
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    LessMore (max 36/day in 2020)

    2021

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 30/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 27/day in 2022)

    2023

    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 24/day in 2023)

    +7
    2059
    2020-08-09 16:35Codeforces Round 663 (Div. 2)561-152052
    2020-08-07 16:35Codeforces Round 662 (Div. 2)103+1102067
    2020-07-24 16:35Codeforces Round 659 (Div. 2)65+1731957
    2020-07-21 16:35Codeforces Round 658 (Div. 2)884+281784
    2020-07-04 17:15Codeforces Global Round 9863+1631756
    2020-07-01 15:35Codeforces Round 654 (Div. 2)4614-561593
    2020-06-23 16:05Codeforces Round 652 (Div. 2)1201+761649