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bingpao

Open on Codeforces · Unique solved

Rating2499· 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
27
Unique solved
326
Submissions (all)
983
Years with activity
2024–2026

Solved by problem rating

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

  • Unrated2
  • 800–89923
  • 900–9996
  • 1000–10996
  • 1100–11998
  • 1200–12998
  • 1300–13999

Solved by topic

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

  • greedy139
  • math125
  • dp95
  • data structures88
  • constructive algorithms88
  • brute force60
  • implementation

Rating changes

2024

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2024

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-23 17:05Codeforces Round 1082 (Div. 1)543-1402499
2026-01-29 17:35Codeforces Round 1077 (Div. 1)24+1522639
2026-01-07 17:35Hello 202665+1382487
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)167+722349
2025-11-16 16:35Codeforces Round 1064 (Div. 1)641
1400–1499
6
  • 1500–15996
  • 1600–16999
  • 1700–179914
  • 1800–189910
  • 1900–19999
  • 2000–20998
  • 2100–219910
  • 2200–22996
  • 2300–239910
  • 2400–24999
  • 2500–259924
  • 2600–269916
  • 2700–279913
  • 2800–289919
  • 2900–299918
  • 3000–309917
  • 3100–319913
  • 3200–329910
  • 3300–33999
  • 3400–34999
  • 3500–359919
  • 58
  • binary search54
  • combinatorics54
  • trees49
  • bitmasks43
  • graphs41
  • sortings38
  • dfs and similar38
  • number theory31
  • two pointers23
  • divide and conquer20
  • interactive20
  • probabilities18
  • games18
  • strings17
  • dsu15
  • shortest paths10
  • matrices9
  • geometry7
  • hashing6
  • fft5
  • graph matchings5
  • Other (7 tags)20
  • 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 22/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 41/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 16/day in 2026)

    -100
    2277
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)235+422377
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)410-372335
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)589-442372
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)200+122416
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)140+852404
    2025-07-31 17:35Codeforces Round 1040 (Div. 1)451-462319
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)608-392365