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WTR2007

Open on Codeforces · Unique solved

Rating2254· 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
91
Unique solved
717
Submissions (all)
1,606
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.

  • Unrated52
  • 800–899131
  • 900–99933
  • 1000–109924
  • 1100–119940
  • 1200–129923
  • 1300–139931

Solved by topic

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

  • math289
  • greedy285
  • dp164
  • implementation156
  • constructive algorithms154
  • brute force145
  • data structures

Rating changes

2021

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

Jan
Feb
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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
2025-04-26 11:35Codeforces Round 1021 (Div. 1)260-22254
2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)310+512256
2025-03-10 17:15Codeforces Round 1008 (Div. 1)263+612205
2025-02-16 16:35Codeforces Round 1005 (Div. 2)106+612144
2024-10-20 11:05Codeforces Round 980 (Div. 1)
1400–1499
38
  • 1500–159928
  • 1600–169931
  • 1700–179924
  • 1800–189926
  • 1900–199925
  • 2000–209931
  • 2100–219917
  • 2200–229918
  • 2300–239938
  • 2400–249933
  • 2500–259913
  • 2600–269921
  • 2700–27997
  • 2800–289911
  • 2900–29995
  • 3000–30996
  • 3100–31992
  • 3200–32992
  • 3300–33994
  • 3400–34991
  • 3500–35992
  • 129
  • binary search92
  • number theory72
  • sortings72
  • trees66
  • graphs60
  • dfs and similar59
  • combinatorics59
  • bitmasks57
  • strings42
  • two pointers42
  • dsu25
  • probabilities24
  • divide and conquer21
  • games19
  • hashing18
  • shortest paths17
  • geometry12
  • interactive11
  • matrices10
  • string suffix structures4
  • fft4
  • Other (7 tags)14
  • 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 9/day in 2021)

    2022

    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 20/day in 2022)

    2023

    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 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
    Oct
    Nov
    Dec

    LessMore (max 25/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 21/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 1/day in 2026)

    503
    +21
    2083
    2024-08-30 17:05Codeforces Round 969 (Div. 1)403+782062
    2024-07-30 16:35Educational Codeforces Round 168 (Rated for Div. 2)576+151984
    2024-07-20 16:35Codeforces Round 960 (Div. 2)359+431969
    2024-07-18 16:35Codeforces Round 959 sponsored by NEAR (Div. 1 + Div. 2)1396-71926
    2024-07-15 16:35Codeforces Round 958 (Div. 2)293+721933
    2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-23635+231861
    2024-03-22 16:35Codeforces Round 936 (Div. 2)6113-1591838