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NaimSS

Open on Codeforces · Unique solved

Rating2308· 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
30
Unique solved
4,151
Submissions (all)
10,037
Years with activity
2019–2025

Solved by problem rating

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

  • Unrated1,165
  • 800–899238
  • 900–99994
  • 1000–1099116
  • 1100–1199101
  • 1200–1299128
  • 1300–1399131

Solved by topic

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

  • greedy1,008
  • math977
  • implementation787
  • dp757
  • data structures602
  • constructive algorithms535

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-11-17 16:50Codeforces Round 684 (Div. 1)338-192308
2020-10-17 15:35Codeforces Raif Round 1 (Div. 1 + Div. 2)274+392327
2020-05-16 13:35Codeforces Round 643 (Div. 2)1+3322288
2020-04-15 17:05Codeforces Round 635 (Div. 1)1367-971956
2020-03-19 17:05Codeforces Global Round 7529
1400–1499
124
  • 1500–1599149
  • 1600–1699153
  • 1700–1799145
  • 1800–1899149
  • 1900–1999165
  • 2000–2099146
  • 2100–2199149
  • 2200–2299179
  • 2300–2399153
  • 2400–2499197
  • 2500–2599164
  • 2600–2699108
  • 2700–279982
  • 2800–289951
  • 2900–299929
  • 3000–309917
  • 3100–31999
  • 3200–32995
  • 3300–33993
  • 3400–34991
  • brute force
    500
  • sortings369
  • graphs368
  • binary search366
  • dfs and similar338
  • trees284
  • number theory282
  • combinatorics231
  • strings228
  • two pointers200
  • bitmasks195
  • dsu138
  • geometry99
  • divide and conquer94
  • shortest paths90
  • probabilities72
  • hashing69
  • games62
  • interactive49
  • flows42
  • string suffix structures36
  • matrices33
  • Other (9 tags)128
  • 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.

    2020

    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.

    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.

    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
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    Dec

    LessMore (max 32/day in 2019)

    2020

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
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    Dec

    LessMore (max 57/day in 2020)

    2021

    Download PNG

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

    Jan
    Feb
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    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 60/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    LessMore (max 37/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 51/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 24/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)

    +72
    2053
    2020-03-04 16:35CodeCraft-20 (Div. 2)214+591981
    2020-03-03 16:50Ozon Tech Challenge 2020 (Div.1 + Div.2, Rated, T-shirts + prizes!)1265-61922
    2020-02-17 17:50Codeforces Round 621 (Div. 1 + Div. 2)610+651928
    2020-02-12 16:35Educational Codeforces Round 82 (Rated for Div. 2)737+211863
    2020-02-09 16:05Codeforces Round 618 (Div. 2)1098-331842
    2020-01-19 15:35Codeforces Round 614 (Div. 2)499+41875
    2020-01-05 16:05Codeforces Round 612 (Div. 1)716-541871