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zenlog

Open on Codeforces · Unique solved

Rating2172· 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
81
Unique solved
1,039
Submissions (all)
2,646
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated318
  • 800–899157
  • 900–99941
  • 1000–109933
  • 1100–119949
  • 1200–129941
  • 1300–139956

Solved by topic

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

  • greedy342
  • math290
  • implementation223
  • constructive algorithms197
  • brute force171
  • dp125
  • data structures

Rating changes

2020

Sum of rating deltas on each UTC day (GitHub-style weeks, Sunday top).

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

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)567+152172
2025-12-06 10:15Codeforces Round 1069 (Div. 1)430-342157
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)630-222191
2025-11-16 16:35Codeforces Round 1064 (Div. 1)438-252213
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)
1400–1499
43
  • 1500–159927
  • 1600–169929
  • 1700–179935
  • 1800–189945
  • 1900–199945
  • 2000–209932
  • 2100–219922
  • 2200–229922
  • 2300–239919
  • 2400–249911
  • 2500–25999
  • 2600–26993
  • 2700–27991
  • 2800–28991
  • 104
  • binary search94
  • sortings89
  • number theory76
  • strings71
  • graphs62
  • dfs and similar62
  • bitmasks57
  • combinatorics54
  • two pointers49
  • trees43
  • interactive26
  • geometry19
  • divide and conquer17
  • games16
  • dsu16
  • *special15
  • hashing13
  • probabilities12
  • shortest paths9
  • ternary search6
  • communication5
  • Other (10 tags)23
  • 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.

    2021

    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.

    2022

    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.

    2023

    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.

    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.

    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 14/day in 2020)

    2021

    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 40/day in 2021)

    2022

    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 35/day in 2022)

    2023

    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 38/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 24/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 48/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 2/day in 2026)

    578
    -20
    2238
    2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)200+392258
    2025-10-19 16:35Codeforces Round 1060 (Div. 2)20+1392219
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)512-22080
    2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)172+492082
    2025-09-21 16:50Codeforces Round 1052 (Div. 2)294+242033
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)3597-1502009
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)396+592159