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Boomyday12343

Open on Codeforces · Unique solved

Rating2236· 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
18
Unique solved
380
Submissions (all)
1,007
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated7
  • 800–89966
  • 900–99918
  • 1000–10997
  • 1100–119912
  • 1200–129918
  • 1300–139910

Solved by topic

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

  • math168
  • greedy154
  • dp102
  • brute force96
  • implementation93
  • constructive algorithms90
  • data structures

Rating changes

2021

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2021

Download PNG

Count of submissions per UTC day (includes every verdict).

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)335+522236
2024-12-19 17:35Codeforces Global Round 28364+652184
2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)844-122119
2024-06-30 17:35EPIC Institute of Technology Round Summer 2024 (Div. 1 + Div. 2)1052-502131
2024-06-09 17:35Codeforces Global Round 26
1400–1499
12
  • 1500–159910
  • 1600–169914
  • 1700–179917
  • 1800–189926
  • 1900–199933
  • 2000–209922
  • 2100–219924
  • 2200–229925
  • 2300–239922
  • 2400–249919
  • 2500–25998
  • 2600–26994
  • 2700–27994
  • 2800–28991
  • 2900–29991
  • 76
  • binary search52
  • combinatorics50
  • sortings46
  • number theory43
  • dfs and similar42
  • trees41
  • graphs37
  • bitmasks33
  • strings31
  • two pointers27
  • divide and conquer25
  • dsu19
  • games12
  • geometry11
  • interactive9
  • probabilities9
  • ternary search7
  • hashing7
  • *special7
  • shortest paths6
  • matrices3
  • Other (7 tags)8
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 8/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 15/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 44/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 19/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 14/day in 2025)

    793
    -23
    2181
    2024-05-31 12:05Codeforces Round 949 (Div. 2)30+1182204
    2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-23155+492086
    2024-04-13 16:35Codeforces Round 939 (Div. 2)22+2252037
    2024-04-12 16:35Educational Codeforces Round 164 (Rated for Div. 2)289+1251812
    2023-07-29 17:05Codeforces Round 889 (Div. 2)1425+31687
    2023-07-27 16:35Educational Codeforces Round 152 (Rated for Div. 2)2314-331684
    2023-04-29 16:50Codeforces Round 869 (Div. 2)315+781717