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wzx_ON9

Open on Codeforces · Unique solved

Rating2246· 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
6
Unique solved
96
Submissions (all)
183
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.

  • 800–89927
  • 900–9995
  • 1000–10996
  • 1100–119910
  • 1200–12994
  • 1300–13995
  • 1400–14997

Solved by topic

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

  • greedy47
  • math45
  • brute force35
  • implementation28
  • dp21
  • constructive algorithms15
  • data structures

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
2025-01-12 16:35Codeforces Round 996 (Div. 2)43+1482246
2024-12-24 16:35Educational Codeforces Round 173 (Rated for Div. 2)8+3192098
2024-12-22 16:50Codeforces Round 995 (Div. 3)25+2991779
2024-12-20 16:35Codeforces Round 994 (Div. 2)565+3251480
2024-12-05 16:50Codeforces Round 991 (Div. 3)
1500–1599
6
  • 1600–16995
  • 1700–17993
  • 1800–18993
  • 1900–19993
  • 2000–20995
  • 2100–21994
  • 2300–23991
  • 2700–27991
  • 2800–28991
  • 15
  • binary search14
  • sortings13
  • two pointers11
  • number theory11
  • graphs9
  • strings8
  • dfs and similar7
  • combinatorics5
  • games4
  • bitmasks4
  • dsu4
  • graph matchings3
  • trees3
  • shortest paths3
  • flows1
  • divide and conquer1
  • interactive1
  • ternary search1
  • matrices1
  • 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 14/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 20/day in 2025)

    220
    +435
    1155
    2024-11-17 16:50Codeforces Round 988 (Div. 3)49+720720