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walk_alone

Open on Codeforces · Unique solved

Rating2177· 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
62
Unique solved
2,343
Submissions (all)
4,655
Years with activity
2018–2025

Solved by problem rating

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

  • Unrated716
  • 800–899268
  • 900–99951
  • 1000–109958
  • 1100–119980
  • 1200–129964
  • 1300–139967

Solved by topic

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

  • greedy706
  • math645
  • constructive algorithms445
  • implementation411
  • dp393
  • brute force371
  • data structures

Rating changes

2018

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

Jan
Feb
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May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-02-15 16:35Codeforces Round 926 (Div. 2)30+1332177
2024-01-06 17:05Hello 20244213-1542044
2023-12-30 16:50Good Bye 2023551+392198
2023-01-15 15:05Codeforces Round 844 (Div. 1 + Div. 2, based on VK Cup 2022 - Elimination Round)555+12159
2022-07-08 16:35Educational Codeforces Round 131 (Rated for Div. 2)
1400–1499
61
  • 1500–159972
  • 1600–169976
  • 1700–179982
  • 1800–189974
  • 1900–199989
  • 2000–209974
  • 2100–219971
  • 2200–229992
  • 2300–239966
  • 2400–249987
  • 2500–259978
  • 2600–269944
  • 2700–279926
  • 2800–289917
  • 2900–299914
  • 3000–30997
  • 3100–31994
  • 3200–32995
  • 348
  • sortings236
  • binary search215
  • dfs and similar179
  • number theory177
  • graphs169
  • combinatorics167
  • strings154
  • bitmasks145
  • two pointers139
  • trees137
  • dsu76
  • shortest paths56
  • interactive54
  • geometry49
  • divide and conquer46
  • hashing43
  • games42
  • probabilities39
  • string suffix structures25
  • matrices22
  • graph matchings18
  • Other (9 tags)74
  • Jun
    Jul
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    Sep
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    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
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    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
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    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
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    Apr
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    Jun
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    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
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    Aug
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    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
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    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
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    LessMore (max 7/day in 2018)

    2020

    Download PNG

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

    Jan
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    LessMore (max 13/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 35/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    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
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    Dec

    LessMore (max 14/day in 2024)

    2025

    Download PNG

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

    Jan
    Feb
    Mar
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    Jun
    Jul
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    LessMore (max 1/day in 2025)

    17
    +166
    2158
    2022-06-28 16:50Codeforces Round 803 (Div. 2)930-611992
    2022-05-31 16:35CodeCraft-22 and Codeforces Round 795 (Div. 2)312-72053
    2022-05-19 16:35Codeforces Round 792 (Div. 1 + Div. 2)1200-572060
    2022-03-06 12:10Codeforces Round 775 (Div. 1, based on Moscow Open Olympiad in Informatics)204+1302117
    2022-03-04 17:35Codeforces Round 774 (Div. 2)418-141987
    2022-02-23 12:10Codeforces Round 773 (Div. 1)774-662001
    2022-01-27 16:35Codeforces Round 768 (Div. 1)655-502067