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CAELO

Open on Codeforces · Unique solved

Rating2215· 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
28
Unique solved
407
Submissions (all)
774
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated49
  • 800–899112
  • 900–99929
  • 1000–109921
  • 1100–119920
  • 1200–129915
  • 1300–139917

Solved by topic

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

  • greedy187
  • math145
  • implementation138
  • constructive algorithms99
  • brute force87
  • dp64
  • binary search

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
2024-07-20 16:35Codeforces Round 960 (Div. 2)26+1312215
2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)422+792084
2024-07-15 16:35Codeforces Round 958 (Div. 2)612-112005
2024-06-06 16:35Codeforces Round 951 (Div. 2)433+62016
2024-05-31 12:05Codeforces Round 949 (Div. 2)
1400–1499
17
  • 1500–159915
  • 1600–16998
  • 1700–179913
  • 1800–189916
  • 1900–199919
  • 2000–209912
  • 2100–21995
  • 2200–22998
  • 2300–23996
  • 2400–24997
  • 2500–25993
  • 2600–26999
  • 2700–27992
  • 2800–28991
  • 2900–29991
  • 3000–30991
  • 3100–31991
  • 54
  • data structures54
  • strings45
  • bitmasks41
  • number theory36
  • sortings34
  • dfs and similar32
  • *special32
  • trees31
  • two pointers27
  • graphs22
  • combinatorics18
  • interactive13
  • dsu13
  • games12
  • divide and conquer12
  • geometry8
  • shortest paths6
  • probabilities4
  • hashing4
  • graph matchings3
  • expression parsing2
  • Other (9 tags)11
  • 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.

    2026

    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 37/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 20/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 8/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 25/day in 2025)

    2026

    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 17/day in 2026)

    147
    +76
    2010
    2023-07-06 16:50Codeforces Round 882 (Div. 2)649-71934
    2023-06-29 16:35Educational Codeforces Round 151 (Rated for Div. 2)424+221941
    2022-08-18 15:35Codeforces Round 815 (Div. 2)277+641919
    2022-08-16 16:35Codeforces Round 814 (Div. 2)408+291855
    2022-08-13 16:50Codeforces Round 813 (Div. 2)2162-641826
    2022-08-04 16:35Educational Codeforces Round 133 (Rated for Div. 2)848-71890
    2022-07-31 16:35CodeTON Round 2 (Div. 1 + Div. 2, Rated, Prizes!)876+601897