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Weiqu0852

Open on Codeforces · Unique solved

Rating2464· Grandmaster

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
12
Unique solved
79
Submissions (all)
177
Years with activity
2025–2026

Solved by problem rating

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

  • Unrated12
  • 800–89910
  • 900–9992
  • 1000–10991
  • 1100–11992
  • 1200–12995
  • 1300–13996

Solved by topic

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

  • greedy45
  • math36
  • dp26
  • constructive algorithms24
  • implementation15
  • brute force13
  • binary search

Rating changes

2025

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2025

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)84+902464
2026-04-13 16:35Codeforces Round 1093 (Div. 1)66+1352374
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)235+742239
2025-12-27 17:35Good Bye 20251718-882165
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)
1400–1499
3
  • 1700–17994
  • 1800–18992
  • 1900–19996
  • 2000–20995
  • 2100–21994
  • 2200–22992
  • 2300–23993
  • 2400–24993
  • 2500–25995
  • 2600–26991
  • 2700–27991
  • 2900–29991
  • 3200–32991
  • 11
  • bitmasks11
  • data structures10
  • strings10
  • interactive9
  • combinatorics9
  • divide and conquer7
  • graphs7
  • number theory7
  • trees6
  • two pointers6
  • sortings5
  • probabilities5
  • games5
  • dfs and similar4
  • dsu4
  • geometry2
  • matrices2
  • communication1
  • shortest paths1
  • 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 23/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 18/day in 2026)

    290
    +60
    2253
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)164+952193
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)420+152098
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)152+1302083
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)48+2311953
    2025-10-12 17:05Codeforces Round 1058 (Div. 2)15+4461722
    2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)144+5211276
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)395+755755