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mymelochan

Open on Codeforces · Unique solved

Rating2176· 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
24
Unique solved
420
Submissions (all)
970
Years with activity
2021–2024

Solved by problem rating

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

  • Unrated4
  • 800–89955
  • 900–99915
  • 1000–10999
  • 1100–119914
  • 1200–129912
  • 1300–139917

Solved by topic

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

  • greedy188
  • math168
  • dp119
  • implementation107
  • data structures106
  • brute force102
  • constructive algorithms

Rating changes

2021

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

Jan
Feb
Mar
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
2024-05-26 16:35Codeforces Round 948 (Div. 2)45+982176
2024-03-22 16:35Codeforces Round 936 (Div. 2)108+872078
2024-02-23 16:35Educational Codeforces Round 162 (Rated for Div. 2)332+321991
2024-02-15 16:35Codeforces Round 926 (Div. 2)184+911959
2024-01-27 16:45Codeforces Round 921 (Div. 1)
1400–1499
17
  • 1500–159917
  • 1600–169925
  • 1700–179932
  • 1800–189929
  • 1900–199954
  • 2000–209949
  • 2100–219928
  • 2200–229922
  • 2300–239915
  • 2400–24995
  • 2500–25991
  • 85
  • sortings84
  • binary search73
  • dfs and similar60
  • graphs51
  • trees48
  • two pointers45
  • bitmasks41
  • strings38
  • number theory35
  • combinatorics31
  • shortest paths25
  • dsu19
  • hashing11
  • games10
  • divide and conquer10
  • ternary search4
  • geometry3
  • interactive3
  • matrices2
  • flows2
  • graph matchings2
  • Other (5 tags)7
  • 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 3/day in 2021)

    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 38/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 19/day in 2024)

    855
    -55
    1868
    2024-01-06 17:05Hello 20242824-671923
    2023-12-16 16:35Codeforces Round 915 (Div. 2)163+661990
    2023-10-22 13:05Codeforces Round 905 (Div. 2)83+1481924
    2023-10-22 09:05Codeforces Round 904 (Div. 2)1519-521776
    2023-10-09 16:35Educational Codeforces Round 156 (Rated for Div. 2)728+291828
    2023-10-08 11:35Codeforces Round 902 (Div. 2, based on COMPFEST 15 - Final Round)1395-621799
    2023-09-30 17:35Codeforces Round 901 (Div. 2)203+901861