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sysu_yzc

Open on Codeforces · Unique solved

Rating2222· 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
11
Unique solved
163
Submissions (all)
468
Years with activity
2024–2025

Solved by problem rating

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

  • Unrated36
  • 800–89912
  • 900–9992
  • 1000–10995
  • 1200–12993
  • 1300–13995
  • 1400–14993

Solved by topic

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

  • greedy56
  • math45
  • implementation41
  • constructive algorithms36
  • brute force33
  • data structures32

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
2025-11-16 16:35Codeforces Round 1064 (Div. 1)429-252222
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)510-102247
2025-10-12 17:05Codeforces Round 1058 (Div. 1)224+592257
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)542+142198
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)
1500–1599
4
  • 1600–16994
  • 1700–17995
  • 1800–18994
  • 1900–199915
  • 2000–20996
  • 2100–21998
  • 2200–229910
  • 2300–239911
  • 2400–249916
  • 2500–259910
  • 2600–26991
  • 3000–30993
  • dp
    31
  • graphs28
  • binary search21
  • dfs and similar18
  • sortings15
  • interactive15
  • bitmasks14
  • combinatorics14
  • two pointers14
  • number theory14
  • trees11
  • shortest paths9
  • dsu9
  • strings7
  • games6
  • divide and conquer5
  • communication4
  • graph matchings3
  • geometry1
  • probabilities1
  • hashing1
  • 2-sat1
  • Other (1 tag)1
  • 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 33/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 17/day in 2025)

    539
    +28
    2184
    2025-09-15 16:35Educational Codeforces Round 182 (Rated for Div. 2)21+2192156
    2024-12-20 16:35Codeforces Round 994 (Div. 2)166+1931937
    2024-12-19 17:35Codeforces Global Round 28605+2581744
    2024-11-17 16:50Codeforces Round 988 (Div. 3)88+3561486
    2024-08-13 16:55Codeforces Round 966 (Div. 3)80+5501130
    2024-07-26 17:05Codeforces Round 962 (Div. 3)1202+580580