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Top rated · Stats

killerCS

Open on Codeforces · Unique solved

Rating2282· 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
437
Submissions (all)
1,395
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.

  • Unrated124
  • 800–89925
  • 900–9996
  • 1000–109914
  • 1100–119911
  • 1200–129913
  • 1300–139913

Solved by topic

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

  • greedy129
  • constructive algorithms99
  • math89
  • implementation81
  • dp71
  • data structures65
  • brute force

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
2020-09-30 17:20Grakn Forces 20201086-912282
2020-09-27 17:05Codeforces Round 673 (Div. 1)146+522373
2020-08-16 17:35Codeforces Global Round 10274+322321
2020-08-12 16:35Codeforces Round 664 (Div. 1)182+762289
2020-07-24 16:35Codeforces Round 659 (Div. 1)427+7
1400–1499
12
  • 1500–159917
  • 1600–169914
  • 1700–179923
  • 1800–189917
  • 1900–199918
  • 2000–209914
  • 2100–219920
  • 2200–229915
  • 2300–239914
  • 2400–249911
  • 2500–259914
  • 2600–269918
  • 2700–279912
  • 2800–28998
  • 2900–29991
  • 3000–30993
  • 56
  • graphs50
  • sortings44
  • dfs and similar37
  • binary search34
  • two pointers30
  • number theory28
  • trees27
  • strings25
  • bitmasks20
  • dsu17
  • shortest paths16
  • geometry14
  • combinatorics12
  • games11
  • divide and conquer10
  • interactive10
  • hashing6
  • flows5
  • graph matchings3
  • fft2
  • matrices2
  • Other (6 tags)8
  • 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.

    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.

    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 27/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 109/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 1/day in 2023)

    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 7/day in 2025)

    2213
    2020-07-21 16:35Codeforces Round 658 (Div. 1)466+02206
    2020-07-04 17:15Codeforces Global Round 9896+362206
    2020-06-18 17:15Codeforces Global Round 8386+1502170
    2020-06-13 17:05Codeforces Round 649 (Div. 2)58+2682020
    2020-06-11 16:35Educational Codeforces Round 89 (Rated for Div. 2)277+2981752
    2020-06-07 16:50Codeforces Round 648 (Div. 2)33+5881454
    2020-06-04 17:05Codeforces Round 647 (Div. 2) - Thanks, Algo Muse!14+866866