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Shadow_Shayan

Open on Codeforces · Unique solved

Rating2175· 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
11
Unique solved
85
Submissions (all)
222
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.

  • Unrated10
  • 800–89910
  • 900–9992
  • 1000–10994
  • 1100–11992
  • 1200–12994
  • 1300–13995

Solved by topic

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

  • greedy45
  • math37
  • dp31
  • constructive algorithms24
  • bitmasks19
  • binary search18
  • brute force

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
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)780-522175
2026-04-13 16:35Codeforces Round 1093 (Div. 1)216+422227
2026-03-28 17:15Nebius Round 2 (Codeforces Round 1088, Div. 1 + Div. 2)309+662185
2026-02-23 17:05Codeforces Round 1082 (Div. 1)578-532119
2026-02-11 17:35Codeforces Round 1079 (Div. 1)
1400–1499
4
  • 1500–15991
  • 1600–16995
  • 1700–17996
  • 1800–18998
  • 1900–19993
  • 2000–20998
  • 2100–21991
  • 2200–22992
  • 2300–23993
  • 2400–24994
  • 2500–25993
  • 18
  • implementation17
  • data structures15
  • combinatorics12
  • interactive11
  • trees9
  • strings9
  • number theory8
  • sortings7
  • graphs7
  • dfs and similar6
  • games6
  • dsu4
  • two pointers4
  • divide and conquer3
  • probabilities2
  • ternary search2
  • communication1
  • fft1
  • graph matchings1
  • expression parsing1
  • flows1
  • 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.

    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 15/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 17/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 30/day in 2026)

    359
    +7
    2172
    2026-02-08 11:05Codeforces Round 1078 (Div. 2)64+1162165
    2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)332+912049
    2025-12-27 17:35Good Bye 20251222+1191958
    2025-12-11 16:35Codeforces Round 1070 (Div. 2)4+5331839
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)274+4361306
    2025-11-20 17:05Codeforces Round 1065 (Div. 3)2+870870