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ZHR100102

Open on Codeforces · Unique solved

Rating2141· 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
28
Unique solved
357
Submissions (all)
728
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.

  • Unrated3
  • 800–89939
  • 900–9997
  • 1000–10997
  • 1100–119912
  • 1200–129916
  • 1300–13998

Solved by topic

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

  • math136
  • greedy134
  • dp122
  • data structures84
  • brute force79
  • constructive algorithms76
  • dfs and similar

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
2025-09-15 16:35Educational Codeforces Round 182 (Rated for Div. 2)11+2152141
2025-09-09 16:35Codeforces Round 1049 (Div. 2)508+331926
2025-08-28 17:35Codeforces Round 1046 (Div. 2)300+501893
2025-08-26 16:35Codeforces Round 1045 (Div. 2)415+851843
2025-08-24 16:35Codeforces Round 1044 (Div. 2)
1400–1499
12
  • 1500–15996
  • 1600–169912
  • 1700–179919
  • 1800–189918
  • 1900–199931
  • 2000–209928
  • 2100–219924
  • 2200–229922
  • 2300–239920
  • 2400–249921
  • 2500–259914
  • 2600–269918
  • 2700–27996
  • 2800–28994
  • 2900–29992
  • 3000–30995
  • 3100–31991
  • 3200–32992
  • 69
  • graphs59
  • trees52
  • implementation51
  • binary search45
  • sortings42
  • combinatorics41
  • number theory39
  • bitmasks35
  • dsu26
  • two pointers23
  • strings22
  • divide and conquer20
  • shortest paths12
  • games10
  • interactive9
  • geometry8
  • probabilities8
  • hashing7
  • string suffix structures7
  • matrices5
  • 2-sat3
  • Other (6 tags)10
  • 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 10/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)

    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 14/day in 2026)

    3453
    -74
    1758
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)1360+431832
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)1920-181789
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)4396-1081807
    2025-06-23 16:35Educational Codeforces Round 180 (Rated for Div. 2)570+121915
    2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 20251360-461903
    2025-05-31 16:35Codeforces Round 1028 (Div. 2)95+1141949
    2025-05-24 16:35Codeforces Round 1026 (Div. 2)687+351835