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laughinggorrila

Open on Codeforces · Unique solved

Rating2163· 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
48
Unique solved
230
Submissions (all)
428
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.

  • 800–89963
  • 900–99912
  • 1000–109910
  • 1100–119918
  • 1200–129914
  • 1300–139918
  • 1400–14999

Solved by topic

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

  • greedy111
  • math98
  • constructive algorithms69
  • implementation61
  • brute force47
  • dp38
  • 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
2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)903-332163
2024-01-06 17:05Hello 2024498+472196
2023-12-30 16:50Good Bye 2023600+462149
2023-12-18 16:35Educational Codeforces Round 160 (Rated for Div. 2)45+1202103
2023-12-16 16:35Codeforces Round 915 (Div. 2)1156
1500–1599
6
  • 1600–169912
  • 1700–179913
  • 1800–189911
  • 1900–199913
  • 2000–209912
  • 2100–21997
  • 2300–23995
  • 2400–24996
  • 2500–25991
  • 38
  • sortings38
  • binary search26
  • number theory22
  • strings22
  • bitmasks21
  • trees17
  • graphs12
  • two pointers12
  • combinatorics12
  • dfs and similar11
  • dsu9
  • games7
  • divide and conquer5
  • shortest paths5
  • geometry4
  • interactive4
  • hashing3
  • probabilities2
  • ternary search2
  • flows1
  • 2-sat1
  • Other (2 tags)2
  • 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 13/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 17/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 9/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 10/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)

    -80
    1983
    2023-12-03 16:35Educational Codeforces Round 159 (Rated for Div. 2)190+262063
    2023-06-03 16:35Codeforces Round 876 (Div. 2)165+422037
    2023-05-12 16:35Educational Codeforces Round 148 (Rated for Div. 2)1087-841995
    2023-05-05 16:35Codeforces Round 870 (Div. 2)54+1262079
    2023-04-27 16:35Codeforces Round 868 (Div. 2)922-741953
    2023-04-20 16:35Educational Codeforces Round 147 (Rated for Div. 2)109+752027
    2022-12-17 17:05Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!)1060-121952