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Wonder_boy

Open on Codeforces · Unique solved

Rating2231· 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
36
Unique solved
221
Submissions (all)
589
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated6
  • 800–89976
  • 900–99918
  • 1000–109926
  • 1100–119916
  • 1200–129921
  • 1300–139918

Solved by topic

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

  • math117
  • greedy99
  • implementation75
  • constructive algorithms53
  • brute force41
  • dp31
  • sortings

Rating changes

2022

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

Jan
Feb
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May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-13 16:35Codeforces Round 1093 (Div. 1)37+2892231
2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)65+1751942
2025-12-27 17:35Good Bye 2025704+1511767
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)1060+1321616
2025-12-11 16:35Codeforces Round 1070 (Div. 2)
1400–1499
8
  • 1500–15996
  • 1600–16994
  • 1700–17995
  • 1800–18998
  • 1900–19994
  • 2000–20991
  • 2300–23991
  • 2400–24991
  • 2500–25991
  • 2800–28991
  • 30
  • number theory27
  • strings24
  • binary search20
  • bitmasks19
  • combinatorics17
  • data structures14
  • two pointers12
  • games8
  • geometry8
  • dfs and similar5
  • trees4
  • interactive3
  • graphs3
  • probabilities2
  • divide and conquer2
  • graph matchings2
  • hashing2
  • shortest paths2
  • *special1
  • dsu1
  • flows1
  • Other (1 tag)1
  • 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
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    Dec

    LessMore (max 13/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 21/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
    Aug
    Sep
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    Nov
    Dec

    LessMore (max 2/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 9/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
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    Dec

    LessMore (max 10/day in 2026)

    227
    +285
    1484
    2023-12-30 16:50Good Bye 20236655+661199
    2023-10-08 11:35Codeforces Round 902 (Div. 2, based on COMPFEST 15 - Final Round)6211-631133
    2023-09-11 16:35Codeforces Round 897 (Div. 2)7141-371196
    2023-09-07 16:50Codeforces Round 895 (Div. 3)2177+1111233
    2023-08-15 16:35Codeforces Round 893 (Div. 2)8546+151122
    2023-08-12 16:35Codeforces Round 892 (Div. 2)14140-871107
    2023-08-07 16:50Codeforces Round 891 (Div. 3)6733+131194