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Shuishui_0921

Open on Codeforces · Unique solved

Rating2152· 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
67
Unique solved
1,161
Submissions (all)
2,598
Years with activity
2022–2025

Solved by problem rating

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

  • Unrated470
  • 800–899114
  • 900–99922
  • 1000–109933
  • 1100–119939
  • 1200–129929
  • 1300–139929

Solved by topic

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

  • greedy341
  • math274
  • implementation195
  • dp193
  • brute force184
  • data structures171
  • constructive algorithms

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
2025-01-22 14:05Codeforces Round 1000 (Div. 2)107+642152
2024-12-19 17:35Codeforces Global Round 28571+452088
2024-11-30 17:35Rayan Programming Contest 2024 - Selection (Codeforces Round 989, Div. 1 + Div. 2)3046-1582043
2024-09-27 16:05Codeforces Round 975 (Div. 1)420+182201
2024-08-30 17:05Codeforces Round 969 (Div. 1)
1400–1499
32
  • 1500–159916
  • 1600–169927
  • 1700–179932
  • 1800–189929
  • 1900–199947
  • 2000–209934
  • 2100–219932
  • 2200–229934
  • 2300–239932
  • 2400–249944
  • 2500–259925
  • 2600–269915
  • 2700–27996
  • 2800–28995
  • 2900–29994
  • 3000–30995
  • 3100–31992
  • 3200–32991
  • 3300–33992
  • 3500–35991
  • 167
  • binary search117
  • sortings113
  • dfs and similar99
  • two pointers78
  • graphs75
  • trees73
  • strings67
  • combinatorics67
  • bitmasks64
  • number theory58
  • divide and conquer32
  • dsu32
  • hashing26
  • games24
  • shortest paths24
  • interactive15
  • geometry12
  • probabilities12
  • matrices7
  • ternary search5
  • flows5
  • Other (6 tags)22
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 2/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 44/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 44/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 23/day in 2025)

    591
    -37
    2183
    2024-08-15 16:35Educational Codeforces Round 169 (Rated for Div. 2)20+1502220
    2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)3298-1522070
    2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)644-72222
    2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)450+192229
    2024-06-30 17:35EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)333+512210
    2024-06-09 17:35Codeforces Global Round 26463+482159
    2024-05-31 12:05Codeforces Round 949 (Div. 2)102+642111