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dapingguo8

Open on Codeforces · Unique solved

Rating2196· 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
64
Unique solved
1,468
Submissions (all)
2,951
Years with activity
2019–2026

Solved by problem rating

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

  • Unrated119
  • 800–899297
  • 900–99992
  • 1000–109998
  • 1100–119992
  • 1200–129983
  • 1300–139980

Solved by topic

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

  • greedy620
  • math570
  • implementation427
  • constructive algorithms392
  • brute force276
  • sortings194
  • dp

Rating changes

2019

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2024-08-30 17:05Codeforces Round 969 (Div. 1)205+1162196
2024-08-25 16:35Codeforces Round 968 (Div. 2)243+292080
2024-08-20 16:35Codeforces Round 967 (Div. 2)300+282051
2024-08-15 16:35Educational Codeforces Round 169 (Rated for Div. 2)736-192023
2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)
1400–1499
75
  • 1500–159986
  • 1600–169972
  • 1700–179981
  • 1800–189962
  • 1900–199971
  • 2000–209950
  • 2100–219941
  • 2200–229930
  • 2300–239912
  • 2400–249913
  • 2500–25998
  • 2600–26993
  • 2800–28993
  • 192
  • data structures169
  • binary search154
  • number theory142
  • strings113
  • graphs100
  • dfs and similar95
  • two pointers88
  • bitmasks87
  • combinatorics73
  • trees69
  • interactive62
  • games43
  • dsu35
  • *special32
  • geometry30
  • shortest paths24
  • probabilities18
  • divide and conquer18
  • hashing16
  • ternary search8
  • graph matchings7
  • Other (10 tags)40
  • 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.

    2020

    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.

    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
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    Apr
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    Jun
    Jul
    Aug
    Sep
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    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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    Aug
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    Dec

    LessMore (max 18/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 34/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 17/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 30/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    LessMore (max 19/day in 2023)

    2024

    Download PNG

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

    Jan
    Feb
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    May
    Jun
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    Dec

    LessMore (max 28/day in 2024)

    2025

    Download PNG

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

    Jan
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    Jun
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    Dec

    LessMore (max 15/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    LessMore (max 11/day in 2026)

    2511
    -109
    2042
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)685-122151
    2023-05-28 17:05Codeforces Round 875 (Div. 1)558-692163
    2023-01-03 17:05Hello 20231021-672232
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR425+292299
    2022-12-17 17:05Polynomial Round 2022 (Div. 1 + Div. 2, Rated, Prizes!)249+532270
    2022-10-29 11:55Codeforces Round 831 (Div. 1 + Div. 2)497-392217
    2022-10-15 16:50Codeforces Global Round 23418+262256