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_HUECTRUM_

Open on Codeforces · Unique solved

Rating2156· 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
25
Unique solved
540
Submissions (all)
1,232
Years with activity
2023–2025

Solved by problem rating

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

  • Unrated128
  • 800–89954
  • 900–99916
  • 1000–109914
  • 1100–119924
  • 1200–129917
  • 1300–139921

Solved by topic

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

  • greedy191
  • math173
  • implementation115
  • dp107
  • brute force106
  • constructive algorithms103
  • data structures

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-03-17 16:35Educational Codeforces Round 176 (Rated for Div. 2)77+852156
2025-03-10 17:15Codeforces Round 1008 (Div. 1)345+792071
2025-02-28 16:50Codeforces Round 1007 (Div. 2)166+871992
2025-02-27 16:35Educational Codeforces Round 175 (Rated for Div. 2)266+781905
2025-02-18 16:35Educational Codeforces Round 174 (Rated for Div. 2)
1400–1499
20
  • 1500–159912
  • 1600–169919
  • 1700–179923
  • 1800–189925
  • 1900–199927
  • 2000–209919
  • 2100–219918
  • 2200–229924
  • 2300–239919
  • 2400–249924
  • 2500–259916
  • 2600–26995
  • 2700–27998
  • 2800–28991
  • 2900–29994
  • 3000–30991
  • 3100–31991
  • 97
  • binary search72
  • sortings50
  • bitmasks49
  • combinatorics49
  • dfs and similar49
  • number theory48
  • graphs41
  • two pointers40
  • strings38
  • trees38
  • divide and conquer28
  • geometry18
  • games16
  • hashing13
  • dsu12
  • interactive10
  • shortest paths9
  • probabilities7
  • fft6
  • string suffix structures6
  • graph matchings5
  • Other (8 tags)19
  • 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 2/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 45/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 31/day in 2025)

    1381
    -26
    1827
    2025-02-16 16:35Codeforces Round 1005 (Div. 2)1484-351853
    2025-02-11 16:35Codeforces Round 1004 (Div. 2)643-21888
    2025-02-02 16:35Codeforces Round 1002 (Div. 2)449+601890
    2024-09-14 16:35Codeforces Round 972 (Div. 2)2622-721830
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)2034-381902
    2024-08-10 16:35Codeforces Round 965 (Div. 2)513+311940
    2024-08-04 16:35Codeforces Round 963 (Div. 2)1045-151909