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Noinoiio

Open on Codeforces · Unique solved

Rating2314· 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
29
Unique solved
480
Submissions (all)
1,803
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.

  • Unrated88
  • 800–89966
  • 900–99916
  • 1000–109913
  • 1100–119913
  • 1200–129920
  • 1300–139913

Solved by topic

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

  • greedy171
  • math146
  • constructive algorithms116
  • implementation107
  • dp101
  • data structures94
  • brute force

Rating changes

2021

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

Jan
Feb
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Apr
May

Submission volume

Download all years PNG

2021

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-03-10 17:15Codeforces Round 1008 (Div. 1)207+492314
2025-01-04 17:05Hello 2025421+412265
2024-12-19 17:35Codeforces Global Round 281176-852224
2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)408+142309
2023-11-07 16:35Codeforces Round 908 (Div. 1)33
1400–1499
15
  • 1500–159911
  • 1600–169916
  • 1700–179913
  • 1800–189918
  • 1900–199916
  • 2000–209919
  • 2100–219935
  • 2200–229922
  • 2300–239926
  • 2400–249931
  • 2500–259912
  • 2600–26999
  • 2700–27992
  • 2800–28991
  • 2900–29991
  • 3000–30992
  • 3100–31991
  • 3400–34991
  • 91
  • binary search63
  • sortings56
  • dfs and similar46
  • bitmasks43
  • graphs41
  • combinatorics35
  • number theory34
  • trees34
  • two pointers33
  • strings30
  • divide and conquer18
  • games14
  • dsu14
  • shortest paths14
  • hashing12
  • geometry12
  • probabilities7
  • matrices6
  • interactive6
  • graph matchings5
  • ternary search5
  • Other (6 tags)21
  • 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 1/day in 2021)

    2022

    Download PNG

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

    Jan
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    May
    Jun
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    Aug
    Sep
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    LessMore (max 36/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 36/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 74/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Dec

    LessMore (max 16/day in 2025)

    +299
    2295
    2023-09-25 16:35Codeforces Round 899 (Div. 2)1025-531996
    2023-09-10 16:35Codeforces Round 896 (Div. 1)616-182049
    2023-08-31 16:35Educational Codeforces Round 154 (Rated for Div. 2)273+192067
    2023-07-27 16:35Educational Codeforces Round 152 (Rated for Div. 2)296+122048
    2023-07-11 17:35Codeforces Round 884 (Div. 1 + Div. 2)783+132036
    2023-06-29 16:35Educational Codeforces Round 151 (Rated for Div. 2)297+192023
    2023-04-27 16:35Codeforces Round 868 (Div. 2)521-442004