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melancholy_

Open on Codeforces · Unique solved

Rating2311· 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
6
Unique solved
40
Submissions (all)
67
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.

  • 800–89910
  • 900–9991
  • 1100–11991
  • 1300–13993
  • 1400–14991
  • 1500–15992
  • 1600–16991

Solved by topic

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

  • greedy18
  • math17
  • dp12
  • implementation10
  • brute force8
  • sortings8
  • 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
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)116+1892311
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)450+1232122
2025-11-16 16:35Codeforces Round 1064 (Div. 1)323+1961999
2025-11-10 17:05Codeforces Round 1063 (Div. 2)10+4781803
2025-10-12 17:05Codeforces Round 1058 (Div. 2)
1700–1799
1
  • 1800–18992
  • 1900–19996
  • 2000–20992
  • 2100–21992
  • 2300–23993
  • 2400–24992
  • 2600–26991
  • 2700–27991
  • 2800–28991
  • 7
  • constructive algorithms6
  • binary search5
  • two pointers5
  • bitmasks5
  • divide and conquer4
  • combinatorics4
  • number theory3
  • trees3
  • geometry3
  • dsu2
  • graphs2
  • interactive2
  • dfs and similar1
  • shortest paths1
  • probabilities1
  • strings1
  • ternary search1
  • communication1
  • 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 8/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 6/day in 2026)

    45
    +535
    1325
    2025-10-10 16:50Codeforces Round 1057 (Div. 2)70+790790