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ylzxxx7

Open on Codeforces · Unique solved

Rating2383· 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
11
Unique solved
360
Submissions (all)
719
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.

  • Unrated2
  • 800–89924
  • 900–9997
  • 1000–10994
  • 1100–119913
  • 1200–12996
  • 1300–13998

Solved by topic

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

  • greedy123
  • data structures115
  • dp110
  • math107
  • implementation73
  • brute force71
  • constructive algorithms

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
2026-02-23 17:05Codeforces Round 1082 (Div. 1)97+952383
2025-12-27 17:35Good Bye 2025354+442288
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)189+972244
2025-11-16 16:35Codeforces Round 1064 (Div. 1)449-92147
2025-05-11 17:05Codeforces Round 1024 (Div. 1)532
1400–1499
10
  • 1500–159911
  • 1600–169912
  • 1700–179922
  • 1800–189920
  • 1900–199923
  • 2000–209920
  • 2100–219923
  • 2200–229972
  • 2300–239921
  • 2400–249921
  • 2500–259912
  • 2600–26998
  • 2700–27994
  • 2800–28996
  • 2900–29993
  • 3000–30993
  • 3100–31991
  • 3300–33991
  • 3400–34991
  • 3500–35992
  • 69
  • dfs and similar61
  • trees54
  • binary search53
  • sortings48
  • graphs47
  • bitmasks35
  • combinatorics32
  • divide and conquer28
  • two pointers28
  • strings23
  • number theory22
  • dsu19
  • shortest paths19
  • interactive10
  • hashing9
  • games9
  • probabilities9
  • flows7
  • string suffix structures6
  • ternary search5
  • meet-in-the-middle4
  • 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 18/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 23/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 9/day in 2026)

    -42
    2156
    2025-04-28 16:35Educational Codeforces Round 178 (Rated for Div. 2)13+2102198
    2025-04-26 11:35Codeforces Round 1021 (Div. 1)475+571988
    2025-04-21 16:35Codeforces Round 1019 (Div. 2)99+2301931
    2024-12-05 16:50Codeforces Round 991 (Div. 3)35+3491701
    2024-12-03 08:25Codeforces Round 990 (Div. 2)4+6581352
    2024-10-19 16:20Codeforces Round 979 (Div. 2)342+694694