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Top rated · Stats

2018haha

Open on Codeforces · Unique solved

Rating2203· 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
44
Unique solved
285
Submissions (all)
607
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.

  • Unrated50
  • 800–89942
  • 900–99911
  • 1000–109915
  • 1100–119914
  • 1200–129912
  • 1300–139912

Solved by topic

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

  • greedy116
  • math105
  • implementation72
  • constructive algorithms66
  • brute force52
  • dp44
  • data structures

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
2025-12-27 17:35Good Bye 2025413+592203
2024-12-03 08:25Codeforces Round 990 (Div. 1)423-232144
2024-11-30 17:35Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)618+102167
2024-10-28 16:35Educational Codeforces Round 171 (Rated for Div. 2)67+912157
2024-10-27 17:35Codeforces Global Round 27
1400–1499
15
  • 1500–15999
  • 1600–169914
  • 1700–179918
  • 1800–189912
  • 1900–19999
  • 2000–209915
  • 2100–219910
  • 2200–22997
  • 2300–239910
  • 2400–24993
  • 2500–25993
  • 2600–26993
  • 2700–27991
  • 42
  • sortings42
  • binary search34
  • strings26
  • dfs and similar26
  • number theory25
  • combinatorics22
  • bitmasks22
  • trees19
  • graphs16
  • two pointers14
  • hashing9
  • games9
  • geometry6
  • dsu6
  • divide and conquer5
  • shortest paths5
  • interactive4
  • string suffix structures3
  • *special3
  • ternary search2
  • chinese remainder theorem2
  • Other (4 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.

    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
    Oct
    Nov
    Dec

    LessMore (max 8/day in 2019)

    2020

    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 16/day in 2020)

    2021

    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 28/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 9/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 12/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 18/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 9/day in 2025)

    2352
    -129
    2066
    2024-10-20 11:05Codeforces Round 980 (Div. 1)252+812195
    2024-09-27 16:05Codeforces Round 975 (Div. 1)1101-1142114
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)722-192228
    2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)1305-942247
    2024-06-30 17:35EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)224+462341
    2024-06-09 17:35Codeforces Global Round 26338+342295
    2024-05-25 17:35Codeforces Round 947 (Div. 1 + Div. 2)151+1072261