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Top rated · Stats

Khanhcsp1

Open on Codeforces · Unique solved

Rating2290· 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
12
Unique solved
102
Submissions (all)
237
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.

  • Unrated7
  • 800–89933
  • 900–9993
  • 1000–10998
  • 1100–11993
  • 1200–12998
  • 1300–13996

Solved by topic

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

  • greedy51
  • math47
  • implementation28
  • constructive algorithms16
  • dp15
  • brute force14
  • data structures

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)163+852290
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)350+572205
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)75+802148
2025-10-05 18:35Codeforces Round 1056 (Div. 2)95+812068
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)
1400–1499
4
  • 1500–15993
  • 1600–16995
  • 1700–17995
  • 1800–18994
  • 1900–19993
  • 2100–21996
  • 2200–22991
  • 2300–23991
  • 2500–25992
  • 12
  • strings12
  • number theory12
  • sortings11
  • graphs9
  • games9
  • binary search6
  • bitmasks5
  • combinatorics5
  • dfs and similar4
  • interactive4
  • two pointers4
  • divide and conquer3
  • trees2
  • geometry2
  • shortest paths2
  • dsu1
  • matrices1
  • graph matchings1
  • 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 16/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 29/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 18/day in 2026)

    741
    +51
    1987
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)810+401936
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)169+1861896
    2025-07-01 16:50Codeforces Round 1034 (Div. 3)270+1621710
    2024-08-25 16:35Codeforces Round 968 (Div. 2)652+2521548
    2024-08-15 16:35Educational Codeforces Round 169 (Rated for Div. 2)453+4451296
    2024-08-13 16:55Codeforces Round 966 (Div. 3)3666+371851
    2024-06-11 17:05Codeforces Round 952 (Div. 4)5258+480480