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candy0014

Open on Codeforces · Unique solved

Rating2155· 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
24
Unique solved
2,170
Submissions (all)
4,120
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated5
  • 800–89956
  • 900–99912
  • 1000–10999
  • 1100–119916
  • 1200–129914
  • 1300–139911

Solved by topic

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

  • dp759
  • math673
  • greedy671
  • data structures600
  • constructive algorithms453
  • brute force397
  • implementation

Rating changes

2022

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

2022

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-05-06 08:35Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)280-172155
2025-12-27 17:35Good Bye 2025225+1362172
2024-12-08 16:35Codeforces Round 992 (Div. 2)23+2012036
2024-12-03 08:25Codeforces Round 990 (Div. 2)88+1161835
2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
1400–1499
8
  • 1500–159912
  • 1600–1699104
  • 1700–1799143
  • 1800–189940
  • 1900–1999197
  • 2000–2099220
  • 2100–2199169
  • 2200–229969
  • 2300–2399120
  • 2400–2499228
  • 2500–2599221
  • 2600–2699165
  • 2700–2799140
  • 2800–289979
  • 2900–299949
  • 3000–309935
  • 3100–319913
  • 3200–329915
  • 3300–33997
  • 3400–34994
  • 3500–35999
  • 381
  • graphs360
  • binary search336
  • trees326
  • dfs and similar323
  • combinatorics302
  • sortings248
  • bitmasks226
  • number theory194
  • two pointers163
  • dsu150
  • strings141
  • divide and conquer130
  • probabilities95
  • interactive86
  • shortest paths85
  • hashing84
  • games78
  • geometry66
  • flows48
  • string suffix structures38
  • matrices36
  • Other (10 tags)122
  • Jun
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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.

    2023

    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.

    2024

    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.

    2025

    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.

    2026

    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.

    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 10/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
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    Dec

    LessMore (max 38/day in 2023)

    2024

    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 42/day in 2024)

    2025

    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 31/day in 2025)

    2026

    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 17/day in 2026)

    6960
    -207
    1719
    2024-03-15 16:35Educational Codeforces Round 163 (Rated for Div. 2)1048-271926
    2024-02-15 16:35Codeforces Round 926 (Div. 2)128+1201953
    2024-01-27 16:45Codeforces Round 921 (Div. 2)179+1021833
    2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)1333+561731
    2023-08-12 16:35Codeforces Round 892 (Div. 2)2523-251675
    2023-08-05 16:35Codeforces Round 890 (Div. 2) supported by Constructor Institute4248-941700
    2023-07-29 17:05Codeforces Round 889 (Div. 2)238+1061794