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wangjc233

Open on Codeforces · Unique solved

Rating2219· 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
16
Unique solved
540
Submissions (all)
1,211
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.

  • Unrated184
  • 800–89990
  • 900–99913
  • 1000–109913
  • 1100–119918
  • 1200–129921
  • 1300–139918

Solved by topic

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

  • math155
  • greedy145
  • implementation118
  • brute force93
  • constructive algorithms90
  • dp66
  • sortings

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
2024-09-20 16:35Codeforces Round 973 (Div. 2)10+1802219
2024-09-14 16:35Codeforces Round 972 (Div. 2)215+602039
2024-08-25 16:35Codeforces Round 968 (Div. 2)298+531979
2024-05-26 16:35Codeforces Round 948 (Div. 2)415+341926
2024-05-25 17:35Codeforces Round 947 (Div. 1 + Div. 2)700
1400–1499
20
  • 1500–159920
  • 1600–169940
  • 1700–179929
  • 1800–189928
  • 1900–199922
  • 2000–20999
  • 2100–21997
  • 2200–22994
  • 2400–24992
  • 2500–25991
  • 3000–30991
  • 46
  • binary search42
  • number theory42
  • data structures40
  • strings38
  • dfs and similar29
  • combinatorics26
  • *special23
  • two pointers22
  • games22
  • bitmasks20
  • graphs18
  • trees16
  • geometry11
  • interactive7
  • divide and conquer7
  • shortest paths7
  • dsu5
  • graph matchings3
  • flows3
  • expression parsing3
  • hashing3
  • Other (8 tags)14
  • 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 53/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 52/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 3/day in 2026)

    +70
    1892
    2024-05-17 16:35Codeforces Round 945 (Div. 2)122+1831822
    2024-04-30 17:05Codeforces Round 942 (Div. 2)1182+221639
    2024-04-29 16:35Educational Codeforces Round 165 (Rated for Div. 2)6351-1311617
    2024-04-27 16:35Codeforces Round 941 (Div. 2)438+581748
    2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-23597+961690
    2024-04-12 16:35Educational Codeforces Round 164 (Rated for Div. 2)581+2071594
    2024-04-08 16:50Codeforces Round 938 (Div. 3)1385+1761387