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Top rated · Stats

MikeZ

Open on Codeforces · Unique solved

Rating2148· 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
20
Unique solved
326
Submissions (all)
644
Years with activity
2015–2026

Solved by problem rating

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

  • Unrated37
  • 800–89923
  • 900–99912
  • 1000–109923
  • 1100–119914
  • 1200–12999
  • 1300–139922

Solved by topic

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

  • implementation125
  • math78
  • greedy72
  • brute force48
  • constructive algorithms43
  • dp41
  • data structures

Rating changes

2015

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

2015

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2018-10-11 16:50Educational Codeforces Round 52 (Rated for Div. 2)22+1232148
2018-10-05 16:35Codeforces Round 514 (Div. 2)99+752025
2018-07-14 16:35Educational Codeforces Round 47 (Rated for Div. 2)524-391950
2018-05-17 18:35Codeforces Round 484 (Div. 2)99+891989
2016-01-31 16:05Codeforces Round 341 (Div. 2)
1400–1499
23
  • 1500–159921
  • 1600–169926
  • 1700–179922
  • 1800–189926
  • 1900–199914
  • 2000–20999
  • 2100–21998
  • 2200–229911
  • 2300–239911
  • 2400–24997
  • 2500–25993
  • 2600–26992
  • 2700–27993
  • 40
  • strings33
  • dfs and similar28
  • sortings27
  • graphs25
  • number theory24
  • binary search23
  • combinatorics18
  • trees17
  • bitmasks9
  • dsu8
  • geometry8
  • hashing8
  • two pointers7
  • divide and conquer6
  • shortest paths6
  • *special4
  • string suffix structures4
  • probabilities4
  • interactive3
  • matrices3
  • fft3
  • Other (5 tags)8
  • 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.

    2016

    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.

    2017

    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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    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).

    Jan
    Feb
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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.

    2019

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

    Jan
    Feb
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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
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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.

    2021

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

    Jan
    Feb
    Mar
    Apr
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    Jun
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    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.

    2022

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

    Jan
    Feb
    Mar
    Apr
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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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    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
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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).

    Jan
    Feb
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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.

    May
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    LessMore (max 18/day in 2015)

    2016

    Download PNG

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

    Jan
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    LessMore (max 28/day in 2016)

    2017

    Download PNG

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

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    LessMore (max 30/day in 2017)

    2018

    Download PNG

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

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    2019

    Download PNG

    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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    2025

    Download PNG

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

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    LessMore (max 3/day in 2025)

    2026

    Download PNG

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

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    60
    +114
    1900
    2015-12-30 18:05Good Bye 20151399-271786
    2015-11-04 18:45Codeforces Round 329 (Div. 2)194+621813
    2015-10-15 19:00Codeforces Round 326 (Div. 2)451-41751
    2015-10-12 11:10Codeforces Round 325 (Div. 2)501-151755
    2015-10-03 18:45Codeforces Round 323 (Div. 2)397+151770
    2015-08-29 18:40Codeforces Round 318 [RussianCodeCup Thanks-Round] (Div. 1)597+391755
    2015-05-26 18:35Codeforces Round 305 (Div. 2)118+601716