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scorpion

Open on Codeforces · Unique solved

Rating2205· 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
92
Unique solved
1,835
Submissions (all)
5,335
Years with activity
2010–2026

Solved by problem rating

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

  • Unrated328
  • 800–899153
  • 900–99961
  • 1000–109991
  • 1100–119996
  • 1200–1299117
  • 1300–1399120

Solved by topic

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

  • implementation613
  • math434
  • greedy365
  • brute force279
  • dp219
  • constructive algorithms187
  • sortings

Rating changes

2010

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2010

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)376+242205
2025-05-17 16:50Codeforces Round 1025 (Div. 2)13+1742181
2025-05-05 16:50Codeforces Round 1023 (Div. 2)593-292007
2025-04-26 11:35Codeforces Round 1021 (Div. 1)215+1302036
2025-02-11 16:35Codeforces Round 1004 (Div. 1)
1400–1499
107
  • 1500–1599125
  • 1600–1699121
  • 1700–1799115
  • 1800–1899105
  • 1900–199996
  • 2000–209968
  • 2100–219944
  • 2200–229928
  • 2300–239913
  • 2400–249926
  • 2500–25994
  • 2600–26992
  • 2700–27993
  • 2800–28993
  • 2900–29992
  • 3000–30991
  • 3100–31992
  • 3200–32991
  • 3500–35993
  • 166
  • binary search134
  • data structures131
  • strings114
  • number theory110
  • dfs and similar100
  • graphs97
  • *special92
  • combinatorics85
  • two pointers63
  • trees62
  • geometry51
  • bitmasks44
  • games35
  • dsu32
  • probabilities31
  • shortest paths28
  • hashing18
  • ternary search14
  • matrices13
  • divide and conquer12
  • interactive9
  • Other (9 tags)35
  • Jun
    Jul
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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.

    2011

    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.

    2012

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

    Jan
    Feb
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    Apr
    May
    Jun
    Jul
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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
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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
    Feb
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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).

    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.

    2017

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

    Jan
    Feb
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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
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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).

    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.

    2020

    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.

    2021

    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.

    2022

    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.

    2023

    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.

    2024

    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.

    2025

    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.

    2026

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

    Jan
    Feb
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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 13/day in 2010)

    2011

    Download PNG

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

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    LessMore (max 26/day in 2011)

    2012

    Download PNG

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

    Jan
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    LessMore (max 80/day in 2012)

    2013

    Download PNG

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

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    LessMore (max 45/day in 2013)

    2014

    Download PNG

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

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    LessMore (max 17/day in 2014)

    2015

    Download PNG

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

    Jan
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    LessMore (max 25/day in 2015)

    2016

    Download PNG

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

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    LessMore (max 50/day in 2016)

    2017

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

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    2018

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

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    LessMore (max 31/day in 2018)

    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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    LessMore (max 32/day in 2021)

    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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    LessMore (max 81/day in 2023)

    2024

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

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    2025

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

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    LessMore (max 18/day in 2025)

    2026

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

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    LessMore (max 27/day in 2026)

    940
    -67
    1906
    2025-02-02 16:35Codeforces Round 1002 (Div. 2)357+471973
    2025-01-20 17:35IAEPC Preliminary Contest (Codeforces Round 999, Div. 1 + Div. 2)682+721926
    2025-01-17 16:35Codeforces Round 997 (Div. 2)671+281854
    2024-12-20 16:35Codeforces Round 994 (Div. 2)2159-611826
    2024-12-02 16:35Educational Codeforces Round 172 (Rated for Div. 2)2136-961887
    2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)967+201983
    2024-01-18 16:35Educational Codeforces Round 161 (Rated for Div. 2)198+751963