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wenqizhi

Open on Codeforces · Unique solved

Rating2265· 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
24
Unique solved
1,398
Submissions (all)
3,006
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.

  • Unrated296
  • 800–899154
  • 900–99923
  • 1000–109930
  • 1100–119938
  • 1200–129928
  • 1300–139934

Solved by topic

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

  • greedy458
  • math435
  • dp356
  • data structures326
  • brute force236
  • constructive algorithms217
  • implementation

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-13 16:35Codeforces Round 1093 (Div. 1)258+32265
2025-06-03 16:35Educational Codeforces Round 179 (Rated for Div. 2)6+1882262
2025-05-01 16:35Codeforces Round 1022 (Div. 2)148+542074
2025-04-28 16:35Educational Codeforces Round 178 (Rated for Div. 2)697-452020
2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)
1400–1499
36
  • 1500–159926
  • 1600–169929
  • 1700–179932
  • 1800–189938
  • 1900–199970
  • 2000–209952
  • 2100–219964
  • 2200–229970
  • 2300–239962
  • 2400–249972
  • 2500–259962
  • 2600–269934
  • 2700–279944
  • 2800–289940
  • 2900–299917
  • 3000–309919
  • 3100–31997
  • 3200–329911
  • 3300–33993
  • 3400–34992
  • 3500–35995
  • 210
  • binary search175
  • combinatorics146
  • trees142
  • graphs126
  • dfs and similar124
  • sortings122
  • number theory120
  • bitmasks106
  • strings94
  • two pointers86
  • divide and conquer77
  • dsu60
  • games40
  • probabilities38
  • interactive35
  • string suffix structures34
  • shortest paths29
  • hashing25
  • matrices25
  • geometry21
  • fft13
  • Other (10 tags)48
  • 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 22/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 12/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 37/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 50/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 52/day in 2026)

    654
    +31
    2065
    2025-04-03 16:35Educational Codeforces Round 177 (Rated for Div. 2)650-302034
    2025-03-22 16:35Codeforces Round 1011 (Div. 2)376+02064
    2025-03-17 16:35Educational Codeforces Round 176 (Rated for Div. 2)234+402064
    2025-02-27 16:35Educational Codeforces Round 175 (Rated for Div. 2)59+1372024
    2025-02-18 16:35Educational Codeforces Round 174 (Rated for Div. 2)321+741887
    2025-02-16 16:35Codeforces Round 1005 (Div. 2)2659-741813
    2025-02-11 16:35Codeforces Round 1004 (Div. 2)491+181887