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Nightmare07

Open on Codeforces · Unique solved

Rating2279· 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
23
Unique solved
125
Submissions (all)
339
Years with activity
2023–2026

Solved by problem rating

Unique accepted problems, bucketed by catalog rating (100‑point bands). Unrated = no rating in the problem set.

  • 800–89919
  • 900–9993
  • 1000–10995
  • 1100–11994
  • 1200–12999
  • 1300–13996
  • 1400–14994

Solved by topic

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

  • greedy64
  • math52
  • constructive algorithms37
  • dp34
  • implementation29
  • combinatorics19
  • brute force

Rating changes

2023

Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

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)302-62279
2026-02-11 17:35Codeforces Round 1079 (Div. 1)290-32285
2026-01-29 17:35Codeforces Round 1077 (Div. 1)310-252288
2026-01-17 17:35Codeforces Round 1073 (Div. 1)537-752313
2026-01-07 17:35Hello 2026168+77
1500–1599
4
  • 1600–16995
  • 1700–17997
  • 1800–18994
  • 1900–19998
  • 2000–20996
  • 2100–21994
  • 2200–22992
  • 2300–23993
  • 2400–24993
  • 2500–25996
  • 2600–26992
  • 2700–27991
  • 2800–28994
  • 3000–30993
  • 3200–32994
  • 3300–33995
  • 3400–34991
  • 3500–35993
  • 18
  • data structures16
  • sortings16
  • binary search15
  • bitmasks15
  • two pointers14
  • graphs13
  • interactive13
  • strings12
  • number theory11
  • trees10
  • dfs and similar8
  • probabilities8
  • divide and conquer7
  • games5
  • dsu4
  • hashing3
  • shortest paths3
  • ternary search3
  • flows2
  • fft2
  • geometry2
  • Other (4 tags)4
  • 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 4/day in 2023)

    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 25/day in 2026)

    2388
    2025-12-27 17:35Good Bye 2025367+332311
    2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)149+1252278
    2025-12-06 10:15Codeforces Round 1069 (Div. 1)298+252153
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)299+882128
    2025-11-10 17:05Codeforces Round 1063 (Div. 2)101+972040
    2025-10-19 16:35Codeforces Round 1060 (Div. 2)23+2541943
    2025-07-27 16:35Codeforces Round 1039 (Div. 2)1268+361689