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Top rated · Stats

tyzc

Open on Codeforces · Unique solved

Rating2144· 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
9
Unique solved
876
Submissions (all)
2,809
Years with activity
2017–2026

Solved by problem rating

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

  • Unrated42
  • 800–899128
  • 900–99929
  • 1000–109930
  • 1100–119938
  • 1200–129936
  • 1300–139935

Solved by topic

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

  • greedy314
  • math259
  • implementation239
  • dp206
  • constructive algorithms148
  • data structures145

Rating changes

2017

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

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Feb
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May

Submission volume

Download all years PNG

2017

Download PNG

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

Jan
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Recent rated rounds

When (UTC)ContestRankΔNew
2020-12-11 16:35Codeforces Round 689 (Div. 2, based on Zed Code Competition)77+682144
2020-11-29 09:05Codeforces Round 687 (Div. 1, based on Technocup 2021 Elimination Round 2)179+1632076
2020-10-11 11:05Educational Codeforces Round 96 (Rated for Div. 2)426+231913
2020-07-19 11:00Codeforces Round 657 (Div. 2)615+601890
2020-07-01 15:35
1400–1499
25
  • 1500–159938
  • 1600–169936
  • 1700–179932
  • 1800–189945
  • 1900–199940
  • 2000–209934
  • 2100–219933
  • 2200–229948
  • 2300–239935
  • 2400–249967
  • 2500–259948
  • 2600–269946
  • 2700–27999
  • 2800–28992
  • brute force
    122
  • sortings105
  • binary search99
  • graphs91
  • dfs and similar87
  • trees68
  • number theory62
  • strings61
  • combinatorics56
  • bitmasks52
  • two pointers47
  • dsu34
  • divide and conquer23
  • shortest paths21
  • hashing21
  • geometry20
  • probabilities18
  • games12
  • flows8
  • matrices8
  • string suffix structures7
  • ternary search7
  • Other (8 tags)23
  • Jun
    Jul
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    Sep
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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
    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.

    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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    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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    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).

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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
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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
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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 9/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

    Download PNG

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

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    2021

    Download PNG

    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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    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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    2026

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

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    Codeforces Round 654 (Div. 2)
    546
    +73
    1830
    2019-06-07 14:05Codeforces Round 564 (Div. 2)283+691757
    2019-04-06 13:35Codeforces Global Round 2861+901688
    2019-02-23 12:20Codeforces Round 541 (Div. 2)462+1351598
    2019-01-20 14:05Codeforces Round 533 (Div. 2)2884+14631463