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programpiggy

Open on Codeforces · Unique solved

Rating2177· 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
23
Unique solved
784
Submissions (all)
2,517
Years with activity
2021–2026

Solved by problem rating

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

  • Unrated7
  • 800–89956
  • 900–99917
  • 1000–109916
  • 1100–119914
  • 1200–129920
  • 1300–139920

Solved by topic

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

  • dp300
  • math240
  • greedy227
  • data structures207
  • combinatorics127
  • trees127
  • implementation

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
2025-07-31 17:35Codeforces Round 1040 (Div. 1)529-262177
2024-11-15 14:35Codeforces Round 987 (Div. 2)17+1572203
2024-10-28 16:35Educational Codeforces Round 171 (Rated for Div. 2)449+12046
2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)719-392045
2023-09-30 17:35Codeforces Round 901 (Div. 2)
1400–1499
25
  • 1500–159916
  • 1600–169940
  • 1700–179937
  • 1800–189936
  • 1900–199937
  • 2000–209932
  • 2100–219941
  • 2200–229934
  • 2300–239937
  • 2400–249957
  • 2500–259943
  • 2600–269935
  • 2700–279935
  • 2800–289923
  • 2900–29999
  • 3000–309939
  • 3100–319920
  • 3200–329910
  • 3300–339910
  • 3400–34997
  • 3500–359911
  • 124
  • brute force124
  • constructive algorithms109
  • dfs and similar103
  • bitmasks98
  • binary search89
  • graphs85
  • sortings83
  • number theory78
  • divide and conquer55
  • two pointers55
  • strings53
  • probabilities43
  • dsu36
  • hashing28
  • shortest paths25
  • interactive18
  • flows15
  • fft15
  • games14
  • matrices14
  • graph matchings10
  • Other (8 tags)43
  • 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 7/day in 2021)

    2022

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Dec

    LessMore (max 31/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 34/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 46/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 22/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 22/day in 2026)

    11
    +199
    2084
    2023-08-31 16:35Educational Codeforces Round 154 (Rated for Div. 2)1845-691885
    2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)915+251954
    2023-03-29 11:05Codeforces Round 861 (Div. 2)250+471929
    2023-03-09 12:35Codeforces Round 857 (Div. 1)696-601882
    2023-02-12 10:35Codeforces Round 852 (Div. 2)745-341942
    2023-01-24 16:35Educational Codeforces Round 142 (Rated for Div. 2)1198-821976
    2023-01-21 16:35Codeforces Round 845 (Div. 2) and ByteRace 202399+652058