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benben181

Open on Codeforces · Unique solved

Rating2178· 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
20
Unique solved
592
Submissions (all)
2,562
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.

  • Unrated124
  • 800–89993
  • 900–99925
  • 1000–109918
  • 1100–119921
  • 1200–129918
  • 1300–139930

Solved by topic

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

  • greedy223
  • math198
  • constructive algorithms155
  • implementation109
  • brute force98
  • dp89
  • 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)116+1662178
2026-04-21 16:35Educational Codeforces Round 189 (Rated for Div. 2)770-502012
2026-04-13 16:35Codeforces Round 1093 (Div. 1)575-642062
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)847-252126
2026-03-14 16:35Codeforces Round 1086 (Div. 2)
1400–1499
22
  • 1500–159920
  • 1600–169924
  • 1700–179925
  • 1800–189931
  • 1900–199921
  • 2000–209920
  • 2100–219923
  • 2200–229928
  • 2300–23999
  • 2400–249914
  • 2500–259910
  • 2600–26993
  • 2700–27991
  • 2800–28991
  • 2900–29994
  • 3000–30992
  • 3200–32991
  • 3300–33992
  • 3400–34991
  • 3500–35991
  • 67
  • data structures65
  • number theory62
  • sortings61
  • interactive49
  • graphs42
  • combinatorics42
  • bitmasks41
  • strings37
  • dfs and similar35
  • two pointers34
  • trees28
  • games20
  • dsu18
  • *special16
  • divide and conquer15
  • geometry11
  • probabilities11
  • shortest paths9
  • communication8
  • hashing6
  • graph matchings5
  • Other (10 tags)23
  • 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 135/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 142/day in 2026)

    84
    +78
    2151
    2026-02-26 17:05Codeforces Round 1083 (Div. 2)197+262073
    2026-02-25 16:35Educational Codeforces Round 187 (Rated for Div. 2)700-502047
    2026-02-23 17:05Codeforces Round 1082 (Div. 1)417+102097
    2026-02-11 17:35Codeforces Round 1079 (Div. 1)417+132087
    2026-02-08 11:05Codeforces Round 1078 (Div. 2)294-42074
    2026-01-29 17:35Codeforces Round 1077 (Div. 1)556-562078
    2026-01-17 17:35Codeforces Round 1073 (Div. 1)567-342134