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Schi2oid

Open on Codeforces · Unique solved

Rating2195· 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
29
Unique solved
350
Submissions (all)
1,032
Years with activity
2021–2025

Solved by problem rating

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

  • 800–89957
  • 900–99918
  • 1000–109918
  • 1100–119911
  • 1200–129919
  • 1300–139919
  • 1400–149918

Solved by topic

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

  • greedy173
  • math127
  • constructive algorithms119
  • implementation86
  • brute force77
  • dp68
  • sortings

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
2024-02-17 17:35think-cell Round 1494+122195
2023-12-30 16:50Good Bye 2023534+482183
2023-11-03 16:35Educational Codeforces Round 157 (Rated for Div. 2)46+1082135
2023-10-30 16:35Codeforces Round 907 (Div. 2)130+862027
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)
1500–1599
13
  • 1600–169914
  • 1700–179917
  • 1800–189920
  • 1900–199920
  • 2000–209919
  • 2100–21999
  • 2200–22996
  • 2300–23998
  • 2400–249910
  • 2500–25996
  • 2600–269912
  • 2700–27995
  • 2800–28996
  • 2900–29996
  • 3000–30993
  • 3100–31993
  • 3200–32995
  • 3300–33992
  • 3400–34992
  • 3500–35994
  • 65
  • data structures63
  • graphs43
  • binary search37
  • dfs and similar35
  • trees28
  • strings27
  • two pointers25
  • bitmasks21
  • combinatorics20
  • number theory19
  • dsu16
  • divide and conquer12
  • geometry11
  • games10
  • shortest paths10
  • string suffix structures10
  • probabilities7
  • hashing7
  • interactive6
  • fft2
  • ternary search2
  • Other (3 tags)4
  • 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 16/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 24/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 27/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 8/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 6/day in 2025)

    948
    -86
    1941
    2023-09-30 17:35Codeforces Round 901 (Div. 1)425+772027
    2023-09-25 16:35Codeforces Round 899 (Div. 2)2382-1081950
    2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)1513-612058
    2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)660+102119
    2023-08-17 16:35Educational Codeforces Round 153 (Rated for Div. 2)167+472109
    2023-07-23 17:05Codeforces Round 887 (Div. 2)16+1702062
    2023-06-18 16:35Codeforces Round 880 (Div. 2)297+281892