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_chkksc_

Open on Codeforces · Unique solved

Rating2128· 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
9
Unique solved
50
Submissions (all)
90
Years with activity
2023–2025

Solved by problem rating

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

  • 800–89912
  • 900–9991
  • 1000–10993
  • 1100–11993
  • 1200–12995
  • 1300–13994
  • 1400–14993

Solved by topic

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

  • greedy25
  • implementation20
  • math19
  • brute force18
  • dp13
  • constructive algorithms10
  • data structures

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
2024-06-25 16:35Codeforces Round 955 (Div. 2, with prizes from NEAR!)35+1492128
2024-06-16 11:05Codeforces Round 953 (Div. 2)593-191979
2024-06-06 16:35Codeforces Round 951 (Div. 2)1620-841998
2024-05-31 12:05Codeforces Round 949 (Div. 2)304+422082
2024-05-30 16:35Educational Codeforces Round 166 (Rated for Div. 2)
1500–1599
1
  • 1600–16992
  • 1700–17993
  • 1800–18993
  • 1900–19992
  • 2000–20993
  • 2100–21992
  • 2200–22991
  • 2300–23992
  • 9
  • sortings9
  • strings8
  • combinatorics6
  • binary search6
  • bitmasks5
  • dfs and similar5
  • number theory4
  • graphs4
  • two pointers3
  • trees3
  • divide and conquer2
  • hashing2
  • games2
  • meet-in-the-middle1
  • ternary search1
  • dsu1
  • graph matchings1
  • shortest paths1
  • 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.

    2024

    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.

    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 17/day in 2023)

    2024

    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 12/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 1/day in 2025)

    121
    +173
    2040
    2024-04-29 16:35Educational Codeforces Round 165 (Rated for Div. 2)375+1631867
    2023-12-19 17:05Codeforces Round 916 (Div. 3)8+4401704
    2023-12-05 17:00Codeforces Round 913 (Div. 3)25+5391264
    2023-10-12 16:50Codeforces Round 903 (Div. 3)52+725725