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Sakuya_maid

Open on Codeforces · Unique solved

Rating2161· 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
71
Unique solved
2,029
Submissions (all)
6,496
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.

  • Unrated334
  • 800–899171
  • 900–99951
  • 1000–109976
  • 1100–119961
  • 1200–129967
  • 1300–139981

Solved by topic

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

  • greedy638
  • math538
  • implementation415
  • dp413
  • data structures368
  • constructive algorithms332

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)409+62161
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)120+1962155
2025-10-10 16:50Codeforces Round 1057 (Div. 2)323+481959
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)2090-831911
2025-07-27 16:35Codeforces Round 1039 (Div. 2)
1400–1499
78
  • 1500–159980
  • 1600–169993
  • 1700–1799109
  • 1800–1899139
  • 1900–1999153
  • 2000–209988
  • 2100–219978
  • 2200–229988
  • 2300–239968
  • 2400–249967
  • 2500–259954
  • 2600–269934
  • 2700–279918
  • 2800–289918
  • 2900–29998
  • 3000–30997
  • 3100–31996
  • 3200–32991
  • 3500–35991
  • brute force
    319
  • dfs and similar278
  • graphs258
  • binary search233
  • sortings219
  • trees184
  • strings141
  • number theory132
  • bitmasks126
  • combinatorics123
  • two pointers121
  • dsu107
  • divide and conquer65
  • shortest paths61
  • games46
  • hashing45
  • geometry33
  • probabilities29
  • flows28
  • interactive26
  • graph matchings15
  • ternary search14
  • Other (10 tags)57
  • 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.

    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
    Oct
    Nov
    Dec

    LessMore (max 8/day in 2022)

    2023

    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 56/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 60/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 40/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 29/day in 2026)

    766
    -28
    1994
    2025-06-12 16:35Codeforces Round 1030 (Div. 2)80+1252022
    2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)2360-1031897
    2025-02-02 16:35Codeforces Round 1002 (Div. 2)103+1302000
    2025-01-12 16:35Codeforces Round 996 (Div. 2)4763-1261870
    2024-11-23 17:35CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)642+741996
    2024-10-27 17:35Codeforces Global Round 271684-411922
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)401+1471963