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YLF_Cat

Open on Codeforces · Unique solved

Rating2422· 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
21
Unique solved
116
Submissions (all)
238
Years with activity
2025–2026

Solved by problem rating

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

  • Unrated8
  • 800–89922
  • 900–9994
  • 1000–10996
  • 1100–11995
  • 1200–12992
  • 1300–139910

Solved by topic

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

  • greedy66
  • math42
  • implementation27
  • constructive algorithms25
  • data structures24
  • dp23
  • binary search

Rating changes

2025

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2025

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)297-212422
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)113+732443
2026-02-23 17:05Codeforces Round 1082 (Div. 1)70+1392370
2026-02-11 17:35Codeforces Round 1079 (Div. 1)244+412231
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)
1400–1499
6
  • 1500–15997
  • 1600–16994
  • 1700–17995
  • 1800–18997
  • 1900–19996
  • 2000–20995
  • 2100–21995
  • 2200–22993
  • 2300–23991
  • 2400–24995
  • 2800–28992
  • 2900–29993
  • 20
  • brute force20
  • sortings18
  • two pointers13
  • combinatorics10
  • bitmasks8
  • number theory8
  • dfs and similar6
  • trees6
  • divide and conquer5
  • games5
  • strings5
  • interactive4
  • geometry3
  • dsu3
  • ternary search3
  • graphs3
  • hashing2
  • chinese remainder theorem1
  • string suffix structures1
  • shortest paths1
  • 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 12/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 11/day in 2026)

    636
    -23
    2190
    2025-11-16 16:35Codeforces Round 1064 (Div. 1)202+912213
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)20+1862122
    2025-11-10 17:05Codeforces Round 1063 (Div. 2)344+431936
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)1017+261893
    2025-10-24 16:35Codeforces Round 1061 (Div. 2)255+931867
    2025-10-19 16:35Codeforces Round 1060 (Div. 2)1199-11774
    2025-10-12 17:05Codeforces Round 1058 (Div. 2)2189-671775