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Nineyx

Open on Codeforces · Unique solved

Rating2425· Grandmaster

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
27
Unique solved
756
Submissions (all)
2,035
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated2
  • 800–89987
  • 900–99922
  • 1000–109923
  • 1100–119928
  • 1200–129925
  • 1300–139933

Solved by topic

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

  • math308
  • greedy301
  • data structures220
  • dp213
  • constructive algorithms178
  • implementation173

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-03-30 17:35CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)123+972425
2024-03-16 17:00Codeforces Round 934 (Div. 1)170+812328
2024-01-06 17:05Hello 2024108+1932247
2023-10-09 16:35Educational Codeforces Round 156 (Rated for Div. 2)265+292054
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)
1400–1499
28
  • 1500–159911
  • 1600–169924
  • 1700–179931
  • 1800–189930
  • 1900–199935
  • 2000–209928
  • 2100–219927
  • 2200–229934
  • 2300–239938
  • 2400–249951
  • 2500–259943
  • 2600–269928
  • 2700–279928
  • 2800–289930
  • 2900–299918
  • 3000–309919
  • 3100–319910
  • 3200–329911
  • 3300–33993
  • 3400–34994
  • 3500–35995
  • brute force
    163
  • binary search121
  • sortings113
  • graphs96
  • trees93
  • dfs and similar89
  • bitmasks85
  • combinatorics83
  • number theory74
  • two pointers62
  • strings51
  • dsu48
  • divide and conquer47
  • probabilities36
  • games25
  • hashing25
  • shortest paths24
  • geometry24
  • interactive22
  • string suffix structures16
  • flows13
  • matrices11
  • Other (8 tags)32
  • 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
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    Nov
    Dec

    LessMore (max 7/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 31/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 37/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 8/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 4/day in 2026)

    676
    -21
    2025
    2023-09-10 16:35Codeforces Round 896 (Div. 1)861-912046
    2023-08-30 17:35Pinely Round 2 (Div. 1 + Div. 2)338+792137
    2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)516+582058
    2023-08-12 16:35Codeforces Round 892 (Div. 2)701-222000
    2023-08-05 16:35Codeforces Round 890 (Div. 2) supported by Constructor Institute448+02022
    2023-07-29 17:05Codeforces Round 889 (Div. 1)555+202022
    2023-07-27 16:35Educational Codeforces Round 152 (Rated for Div. 2)229+472002