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cirnovlove

Open on Codeforces · Unique solved

Rating2357· International 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
12
Unique solved
762
Submissions (all)
2,097
Years with activity
2020–2025

Solved by problem rating

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

  • Unrated34
  • 800–89974
  • 900–99923
  • 1000–109914
  • 1100–119921
  • 1200–129921
  • 1300–139927

Solved by topic

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

  • math273
  • greedy227
  • dp220
  • data structures190
  • constructive algorithms137
  • graphs115
  • implementation

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-10-25 08:35Codeforces Round 751 (Div. 1)192-42357
2021-09-30 12:15Codeforces Round 745 (Div. 1)129+472361
2021-08-24 17:05Codeforces Round 740 (Div. 1, based on VK Cup 2021 - Final (Engine))115+1222314
2021-08-01 17:00Codeforces Round 736 (Div. 1)177+1492192
2021-07-30 16:35Educational Codeforces Round 112 (Rated for Div. 2)
1400–1499
18
  • 1500–159922
  • 1600–169923
  • 1700–179930
  • 1800–189936
  • 1900–199924
  • 2000–209936
  • 2100–219940
  • 2200–229942
  • 2300–239941
  • 2400–249930
  • 2500–259947
  • 2600–269971
  • 2700–279936
  • 2800–289917
  • 2900–29997
  • 3000–30995
  • 3100–31998
  • 3200–32998
  • 3300–33994
  • 3400–34992
  • 3500–35991
  • 106
  • dfs and similar99
  • brute force97
  • combinatorics93
  • number theory93
  • trees92
  • binary search91
  • bitmasks71
  • sortings71
  • probabilities51
  • two pointers40
  • divide and conquer39
  • strings38
  • dsu37
  • shortest paths29
  • *special26
  • interactive24
  • geometry22
  • flows22
  • hashing20
  • graph matchings12
  • matrices12
  • Other (8 tags)47
  • 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.

    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 26/day in 2020)

    2021

    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 24/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 51/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 13/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 28/day in 2025)

    208
    +49
    2043
    2021-07-29 16:35Codeforces Round 735 (Div. 2)6+3551994
    2021-07-07 16:50Codeforces Round 730 (Div. 2)775+951639
    2021-06-20 12:05Codeforces Round 727 (Div. 2)2326-121544
    2021-05-16 10:00Educational Codeforces Round 109 (Rated for Div. 2)302+2001556
    2020-04-08 16:35Codeforces Round 632 (Div. 2)6024+101356
    2020-04-03 16:35Codeforces Round 631 (Div. 2) - Thanks, Denis aramis Shitov!8459-751346
    2020-02-04 16:35Codeforces Round 617 (Div. 3)6008+14211421