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hodza

Open on Codeforces · Unique solved

Rating2487· 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
20
Unique solved
440
Submissions (all)
730
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.

  • Unrated18
  • 800–89976
  • 900–99915
  • 1000–109916
  • 1100–119921
  • 1200–129921
  • 1300–139930

Solved by topic

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

  • greedy225
  • math180
  • constructive algorithms130
  • dp113
  • brute force93
  • implementation88
  • data structures

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)52+1312487
2026-04-13 16:35Codeforces Round 1093 (Div. 1)85+1122356
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)1926-1912244
2026-01-07 17:35Hello 202627+2452435
2025-11-29 16:35Codeforces Round 1067 (Div. 2)
1400–1499
18
  • 1500–159916
  • 1600–169923
  • 1700–179924
  • 1800–189920
  • 1900–199923
  • 2000–209921
  • 2100–219918
  • 2200–229924
  • 2300–239911
  • 2400–249912
  • 2500–259915
  • 2600–26997
  • 2700–27994
  • 2800–28992
  • 2900–29993
  • 3000–30991
  • 3500–35991
  • 81
  • sortings63
  • binary search53
  • graphs47
  • dfs and similar46
  • number theory45
  • trees41
  • bitmasks40
  • combinatorics38
  • two pointers37
  • strings32
  • interactive31
  • divide and conquer19
  • dsu19
  • games15
  • shortest paths9
  • probabilities8
  • graph matchings6
  • ternary search6
  • geometry5
  • hashing5
  • *special4
  • 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.

    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 24/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 16/day in 2026)

    13
    +163
    2190
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)16+2282027
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)2521-791799
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)272+501878
    2025-10-19 16:35Codeforces Round 1060 (Div. 2)4904-1431828
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)844-951971
    2025-10-05 18:35Codeforces Round 1056 (Div. 2)47+1312066
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)2932-1001935