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Top rated · Stats

chaitanya

Open on Codeforces · Unique solved

Rating2175· 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
49
Unique solved
946
Submissions (all)
2,300
Years with activity
2018–2024

Solved by problem rating

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

  • Unrated12
  • 800–899108
  • 900–99934
  • 1000–109951
  • 1100–119936
  • 1200–129951
  • 1300–139957

Solved by topic

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

  • greedy339
  • math303
  • implementation262
  • dp196
  • constructive algorithms160
  • brute force158
  • data structures

Rating changes

2018

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

Jan
Feb
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May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2020-12-28 16:35Educational Codeforces Round 101 (Rated for Div. 2)37+1242175
2020-11-30 16:35Educational Codeforces Round 99 (Rated for Div. 2)35+1762051
2020-11-02 16:35Codeforces Round 681 (Div. 2, based on VK Cup 2019-2020 - Final)202+571875
2020-11-01 13:05Codeforces Round 680 (Div. 2, based on Moscow Team Olympiad)749-251818
2020-10-25 13:05
1400–1499
53
  • 1500–159976
  • 1600–169973
  • 1700–179976
  • 1800–189973
  • 1900–199989
  • 2000–209950
  • 2100–219938
  • 2200–229934
  • 2300–239918
  • 2400–24999
  • 2500–25995
  • 2600–26992
  • 2700–27991
  • 148
  • sortings133
  • binary search89
  • graphs78
  • dfs and similar75
  • two pointers72
  • strings65
  • number theory65
  • trees57
  • combinatorics55
  • bitmasks42
  • dsu26
  • shortest paths23
  • geometry20
  • divide and conquer19
  • games15
  • hashing11
  • flows8
  • probabilities8
  • ternary search7
  • string suffix structures5
  • *special4
  • Other (9 tags)25
  • 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.

    2019

    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.

    2020

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    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
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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.

    2023

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    Aug
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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.

    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.

    May
    Jun
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    Sep
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    Dec

    LessMore (max 47/day in 2018)

    2019

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    LessMore (max 24/day in 2019)

    2020

    Download PNG

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

    Jan
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    May
    Jun
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    LessMore (max 26/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 3/day in 2021)

    2023

    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 6/day in 2023)

    2024

    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 8/day in 2024)

    Codeforces Round 679 (Div. 2, based on Technocup 2021 Elimination Round 1)
    496
    -6
    1843
    2020-10-24 16:15Codeforces Round 678 (Div. 2)2604-1071849
    2020-10-17 15:35Codeforces Raif Round 1 (Div. 1 + Div. 2)3102-1281956
    2020-10-04 18:05Codeforces Round 675 (Div. 2)42+1382084
    2020-09-30 17:20Grakn Forces 20201550-341946
    2020-09-24 16:35Codeforces Round 672 (Div. 2)229+771980
    2020-09-06 16:35Codeforces Round 668 (Div. 1)1062-721903
    2020-08-25 16:35Educational Codeforces Round 94 (Rated for Div. 2)786-131975