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w4p3r

Open on Codeforces · Unique solved

Rating2508· Grandmaster

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
93
Unique solved
1,731
Submissions (all)
4,329
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.

  • Unrated560
  • 800–899113
  • 900–99916
  • 1000–109932
  • 1100–119938
  • 1200–129934
  • 1300–139946

Solved by topic

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

  • greedy534
  • math439
  • dp352
  • constructive algorithms322
  • data structures291
  • implementation242

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
2025-12-27 17:35Good Bye 2025462-552508
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)349-642563
2025-12-06 10:15Codeforces Round 1069 (Div. 1)100-162627
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)114+142643
2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)92
1400–1499
41
  • 1500–159934
  • 1600–169934
  • 1700–179953
  • 1800–189944
  • 1900–199965
  • 2000–209956
  • 2100–219956
  • 2200–229946
  • 2300–239953
  • 2400–249976
  • 2500–259966
  • 2600–269968
  • 2700–279937
  • 2800–289939
  • 2900–299934
  • 3000–309930
  • 3100–319918
  • 3200–329914
  • 3300–339919
  • 3400–34994
  • 3500–35995
  • brute force
    214
  • sortings175
  • trees157
  • graphs155
  • binary search144
  • dfs and similar138
  • combinatorics135
  • bitmasks108
  • two pointers98
  • number theory95
  • strings74
  • dsu67
  • divide and conquer56
  • games51
  • probabilities48
  • interactive45
  • geometry36
  • shortest paths33
  • hashing25
  • matrices16
  • graph matchings14
  • string suffix structures13
  • Other (7 tags)57
  • 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
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    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
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    Dec

    LessMore (max 23/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 37/day in 2021)

    2022

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 51/day in 2022)

    2023

    Download PNG

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

    Jan
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    Jun
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    LessMore (max 58/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    Sep
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    Dec

    LessMore (max 26/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
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    Dec

    LessMore (max 21/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
    Mar
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    May
    Jun
    Jul
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    LessMore (max 12/day in 2026)

    -6
    2629
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)45+1012635
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)71+1132534
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)261-82421
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)224+392429
    2025-07-31 17:35Codeforces Round 1040 (Div. 1)889-1552390
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)71+832545
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)243-132462