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yang114514

Open on Codeforces · Unique solved

Rating2311· International 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
30
Unique solved
306
Submissions (all)
681
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.

  • Unrated30
  • 800–89945
  • 900–99914
  • 1000–10998
  • 1100–119915
  • 1200–129915
  • 1300–139912

Solved by topic

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

  • greedy140
  • math107
  • dp74
  • constructive algorithms71
  • data structures60
  • brute force53
  • binary search

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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)61+1832311
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)2483-1472128
2026-02-23 17:05Codeforces Round 1082 (Div. 1)178+632275
2026-01-29 17:35Codeforces Round 1077 (Div. 1)161+942212
2025-12-27 17:35Good Bye 2025
1400–1499
16
  • 1500–159910
  • 1600–169917
  • 1700–179913
  • 1800–18997
  • 1900–199914
  • 2000–209915
  • 2100–219910
  • 2200–229915
  • 2300–239915
  • 2400–249913
  • 2500–25999
  • 2600–26994
  • 2700–27991
  • 2800–28993
  • 2900–29992
  • 3000–30991
  • 3100–31991
  • 3200–32991
  • 46
  • implementation45
  • sortings43
  • dfs and similar36
  • trees34
  • graphs32
  • bitmasks31
  • number theory31
  • dsu24
  • combinatorics21
  • interactive17
  • strings17
  • two pointers16
  • divide and conquer14
  • games14
  • probabilities8
  • graph matchings4
  • shortest paths4
  • hashing4
  • geometry3
  • ternary search3
  • flows1
  • Other (4 tags)4
  • 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 15/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 36/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)

    1238
    -36
    2118
    2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)708-52154
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)465-472159
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)447+112206
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)739-192195
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)298+372214
    2025-08-26 16:35Codeforces Round 1045 (Div. 2)72+792177
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)564+402098