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Top rated · Stats

fedimser

Open on Codeforces · Unique solved

Rating2149· 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
116
Unique solved
1,757
Submissions (all)
3,845
Years with activity
2012–2026

Solved by problem rating

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

  • Unrated89
  • 800–899283
  • 900–99995
  • 1000–109987
  • 1100–119982
  • 1200–1299101
  • 1300–139995

Solved by topic

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

  • greedy639
  • math600
  • implementation536
  • constructive algorithms387
  • brute force340
  • dp280
  • data structures

Rating changes

2012

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

Jan
Feb
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Apr
May

Submission volume

Download all years PNG

2012

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-06-09 17:35Codeforces Global Round 26714+02149
2023-08-31 16:35Educational Codeforces Round 154 (Rated for Div. 2)64+942149
2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)1246-452055
2023-01-24 16:35Educational Codeforces Round 142 (Rated for Div. 2)60+932100
2023-01-08 16:35Educational Codeforces Round 141 (Rated for Div. 2)
1400–1499
95
  • 1500–1599104
  • 1600–1699122
  • 1700–1799114
  • 1800–1899104
  • 1900–199985
  • 2000–209981
  • 2100–219951
  • 2200–229949
  • 2300–239930
  • 2400–249933
  • 2500–259923
  • 2600–269911
  • 2700–279910
  • 2800–28996
  • 2900–29994
  • 3000–30993
  • 231
  • sortings214
  • binary search185
  • number theory160
  • strings137
  • graphs135
  • *special120
  • bitmasks110
  • dfs and similar109
  • two pointers94
  • combinatorics92
  • trees83
  • shortest paths45
  • games43
  • dsu43
  • geometry39
  • interactive38
  • hashing34
  • divide and conquer29
  • probabilities22
  • string suffix structures11
  • flows10
  • Other (10 tags)56
  • Jun
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    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.

    2013

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

    Jan
    Feb
    Mar
    Apr
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    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.

    2014

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

    Jan
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    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.

    2015

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

    Jan
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    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.

    2016

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

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    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.

    2017

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

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    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.

    2018

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

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    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.

    2019

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

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    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).

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    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).

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    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).

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    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).

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    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).

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    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).

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    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).

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    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.

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    LessMore (max 18/day in 2012)

    2013

    Download PNG

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

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    LessMore (max 15/day in 2013)

    2014

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

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    2015

    Download PNG

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

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    2016

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

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    2017

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

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    2018

    Download PNG

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

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    2019

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

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    2020

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

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    2021

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

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    2022

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

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    2023

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

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    2024

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

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    LessMore (max 46/day in 2024)

    2025

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

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    LessMore (max 32/day in 2025)

    2026

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

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    183
    +60
    2007
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR1653-131947
    2022-12-27 16:35Codeforces Round 841 (Div. 2) and Divide by Zero 2022786-411960
    2022-12-19 16:35Codeforces Round 840 (Div. 2) and Enigma 2022 - Cybros LNMIIT347+32001
    2022-12-17 17:05Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!)2243-1251998
    2022-06-25 16:50Codeforces Global Round 21750-42123
    2021-12-24 17:05Codeforces Global Round 181158-672127
    2021-12-01 16:35Educational Codeforces Round 118 (Rated for Div. 2)33+1192194