CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

WiwiHo

Open on Codeforces · Unique solved

Rating2701· International 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
111
Unique solved
2,216
Submissions (all)
3,977
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.

  • Unrated652
  • 800–899178
  • 900–99961
  • 1000–109977
  • 1100–119959
  • 1200–129977
  • 1300–139980

Solved by topic

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

  • greedy650
  • math558
  • implementation466
  • constructive algorithms353
  • dp305
  • brute force287
  • data structures

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
2025-12-27 17:35Good Bye 2025154-132701
2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)54+772714
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)165-102637
2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)226-482647
2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)
1400–1499
83
  • 1500–1599104
  • 1600–169993
  • 1700–1799104
  • 1800–189988
  • 1900–199998
  • 2000–209981
  • 2100–219978
  • 2200–229969
  • 2300–239945
  • 2400–249949
  • 2500–259940
  • 2600–269934
  • 2700–279919
  • 2800–289916
  • 2900–29998
  • 3000–309911
  • 3100–31993
  • 3200–32993
  • 3300–33995
  • 3500–35991
  • 287
  • sortings227
  • binary search190
  • graphs171
  • *special152
  • dfs and similar142
  • number theory126
  • strings124
  • two pointers108
  • trees107
  • combinatorics90
  • bitmasks80
  • shortest paths52
  • interactive51
  • dsu49
  • geometry49
  • divide and conquer41
  • games39
  • hashing30
  • probabilities17
  • graph matchings14
  • flows14
  • Other (10 tags)63
  • 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
    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 23/day in 2019)

    2020

    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 30/day in 2020)

    2021

    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 30/day in 2021)

    2022

    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 30/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 43/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 27/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 23/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 18/day in 2026)

    41
    +112
    2695
    2024-07-28 17:35Pinely Round 4 (Div. 1 + Div. 2)138+322583
    2024-06-09 17:35Codeforces Global Round 26127+462551
    2023-06-24 17:05CodeTON Round 5 (Div. 1 + Div. 2, Rated, Prizes!)141+432505
    2023-06-18 16:35Codeforces Round 880 (Div. 1)163+202462
    2023-01-15 15:05Codeforces Round 844 (Div. 1 + Div. 2, based on VK Cup 2022 - Elimination Round)81+1122442
    2023-01-03 17:05Hello 2023392+102330
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR1354-1052320