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tankcommander

Open on Codeforces · Unique solved

Rating2131· 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
64
Submissions (all)
98
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.

  • 800–89918
  • 900–9994
  • 1000–10994
  • 1100–11993
  • 1200–12992
  • 1300–13994
  • 1400–14998

Solved by topic

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

  • greedy32
  • math26
  • implementation20
  • brute force19
  • constructive algorithms17
  • dp13
  • number theory

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
2026-03-29 16:50Codeforces Round 1089 (Div. 2)68+1002131
2026-03-21 16:35Codeforces Round 1087 (Div. 2)74+1212031
2026-03-16 16:50Educational Codeforces Round 188 (Rated for Div. 2)212+811910
2025-09-21 16:50Codeforces Round 1052 (Div. 2)3777-1221829
2025-02-28 16:50Codeforces Round 1007 (Div. 2)
1500–1599
1
  • 1600–16992
  • 1700–17995
  • 1800–18996
  • 1900–19992
  • 2000–20991
  • 2100–21992
  • 2200–22992
  • 10
  • data structures9
  • sortings9
  • binary search7
  • two pointers6
  • dfs and similar6
  • strings4
  • trees3
  • graphs3
  • games3
  • combinatorics2
  • bitmasks2
  • hashing1
  • string suffix structures1
  • interactive1
  • graph matchings1
  • shortest paths1
  • ternary search1
  • schedules1
  • 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 13/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 6/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 8/day in 2026)

    124
    +126
    1951
    2025-02-27 16:35Educational Codeforces Round 175 (Rated for Div. 2)1294-231825
    2024-05-20 16:50Codeforces Round 946 (Div. 3)31+2351848
    2024-05-17 16:35Codeforces Round 945 (Div. 2)1542+1711613
    2024-05-02 17:00Codeforces Round 943 (Div. 3)2283+1111442
    2024-04-30 17:05Codeforces Round 942 (Div. 2)922+2991331
    2024-04-29 16:35Educational Codeforces Round 165 (Rated for Div. 2)1825+3751032
    2024-04-08 16:50Codeforces Round 938 (Div. 3)263+657657