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OneCyborg

Open on Codeforces · Unique solved

Rating2380· 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
27
Unique solved
138
Submissions (all)
326
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.

  • Unrated10
  • 800–89935
  • 900–9993
  • 1000–10997
  • 1100–11997
  • 1200–12999
  • 1300–13998

Solved by topic

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

  • greedy67
  • math55
  • constructive algorithms38
  • dp33
  • brute force22
  • implementation22
  • 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)242+112380
2026-04-13 16:35Codeforces Round 1093 (Div. 1)62+1452369
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)195+982224
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)550-142126
2026-02-26 17:05Codeforces Round 1083 (Div. 2)
1400–1499
2
  • 1500–15997
  • 1600–16996
  • 1700–17996
  • 1800–18999
  • 1900–19992
  • 2000–20993
  • 2100–21994
  • 2200–22996
  • 2300–23993
  • 2400–24994
  • 2500–25992
  • 2600–26992
  • 2700–27991
  • 2900–29991
  • 3100–31991
  • 20
  • sortings17
  • binary search14
  • combinatorics14
  • bitmasks12
  • number theory11
  • trees9
  • dfs and similar9
  • strings9
  • graphs9
  • interactive8
  • games8
  • two pointers8
  • divide and conquer5
  • geometry4
  • dsu4
  • fft3
  • string suffix structures2
  • graph matchings2
  • probabilities1
  • hashing1
  • ternary search1
  • Other (1 tag)1
  • 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 22/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 40/day in 2026)

    71
    +74
    2140
    2026-02-25 16:35Educational Codeforces Round 187 (Rated for Div. 2)243+212066
    2026-02-11 17:35Codeforces Round 1079 (Div. 1)710-752045
    2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)171+302120
    2025-12-27 17:35Good Bye 20251972-822090
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)580-522172
    2025-10-10 16:50Codeforces Round 1057 (Div. 2)9+2212224
    2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)541-52003