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mkawa2

Open on Codeforces · Unique solved

Rating2213· 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
132
Unique solved
1,645
Submissions (all)
2,992
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated4
  • 800–899355
  • 900–99988
  • 1000–109982
  • 1100–1199112
  • 1200–129995
  • 1300–139988

Solved by topic

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

  • greedy789
  • math671
  • implementation479
  • constructive algorithms445
  • brute force377
  • dp322
  • data structures

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-02-05 15:05Codeforces Round 850 (Div. 1, based on VK Cup 2022 - Final Round)198+1122213
2022-10-20 16:35Educational Codeforces Round 138 (Rated for Div. 2)44+1142101
2022-10-17 16:35Educational Codeforces Round 137 (Rated for Div. 2)630-311987
2022-10-10 16:35Codeforces Round 825 (Div. 2)373-42018
2022-10-07 17:05Dytechlab Cup 2022
1400–1499
94
  • 1500–159999
  • 1600–169992
  • 1700–179993
  • 1800–189977
  • 1900–199995
  • 2000–209972
  • 2100–219960
  • 2200–229949
  • 2300–239933
  • 2400–249924
  • 2500–259914
  • 2600–26999
  • 2700–27995
  • 2800–28993
  • 2900–29991
  • 3200–32991
  • 276
  • sortings264
  • binary search249
  • number theory161
  • strings157
  • two pointers145
  • dfs and similar136
  • graphs120
  • bitmasks117
  • trees95
  • combinatorics88
  • dsu52
  • interactive49
  • games46
  • shortest paths40
  • geometry39
  • divide and conquer33
  • hashing24
  • ternary search17
  • probabilities16
  • flows13
  • graph matchings12
  • Other (9 tags)41
  • 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
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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
    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
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    Dec

    LessMore (max 18/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 16/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 15/day in 2022)

    2023

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 15/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 13/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 16/day in 2025)

    2026

    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 9/day in 2026)

    834
    -11
    2022
    2022-10-02 16:50Codeforces Round 824 (Div. 2)356-112033
    2022-09-29 16:35Educational Codeforces Round 136 (Rated for Div. 2)152+402044
    2022-09-25 16:35Codeforces Round 823 (Div. 2)313+112004
    2022-09-19 16:35Codeforces Round 821 (Div. 2)80+1161993
    2022-08-18 15:35Codeforces Round 815 (Div. 2)1290-531877
    2022-08-04 16:35Educational Codeforces Round 133 (Rated for Div. 2)531+181930
    2022-07-21 16:35Educational Codeforces Round 132 (Rated for Div. 2)591+71912