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Top rated · Stats

by_chance

Open on Codeforces · Unique solved

Rating2757· 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
23
Unique solved
384
Submissions (all)
932
Years with activity
2021–2025

Solved by problem rating

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

  • Unrated8
  • 800–89928
  • 900–9994
  • 1000–10998
  • 1100–11996
  • 1200–12998
  • 1300–13998

Solved by topic

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

  • math135
  • greedy122
  • dp111
  • data structures95
  • constructive algorithms85
  • combinatorics62
  • implementation

Rating changes

2021

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

Jan
Feb
Mar
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
2024-08-11 17:35EPIC Institute of Technology Round August 2024 (Div. 1 + Div. 2)171-452757
2024-04-30 17:05Codeforces Round 942 (Div. 1)17+1572802
2024-04-06 17:35Codeforces Global Round 2566+862645
2023-12-23 17:35Pinely Round 3 (Div. 1 + Div. 2)90+652559
2023-10-22 13:05Codeforces Round 905 (Div. 1)
1400–1499
16
  • 1500–15997
  • 1600–16998
  • 1700–179910
  • 1800–18998
  • 1900–199919
  • 2000–209917
  • 2100–21998
  • 2200–229917
  • 2300–239922
  • 2400–249918
  • 2500–259917
  • 2600–269915
  • 2700–279916
  • 2800–289917
  • 2900–299917
  • 3000–309923
  • 3100–319922
  • 3200–329915
  • 3300–339910
  • 3400–34998
  • 3500–35994
  • 56
  • brute force56
  • trees54
  • graphs52
  • number theory48
  • binary search43
  • dfs and similar43
  • bitmasks30
  • divide and conquer29
  • probabilities27
  • sortings25
  • dsu21
  • strings20
  • two pointers17
  • flows15
  • interactive14
  • games14
  • shortest paths13
  • string suffix structures12
  • hashing9
  • fft6
  • *special6
  • Other (8 tags)30
  • 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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 10/day in 2021)

    2022

    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 15/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
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    Dec

    LessMore (max 28/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 21/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 10/day in 2025)

    90
    +81
    2494
    2023-10-08 11:35Codeforces Round 902 (Div. 1, based on COMPFEST 15 - Final Round)243+32413
    2023-09-18 16:50CodeTON Round 6 (Div. 1 + Div. 2, Rated, Prizes!)204+472410
    2023-08-26 17:35Harbour.Space Scholarship Contest 2023-2024 (Div. 1 + Div. 2)257+222363
    2023-07-29 17:05Codeforces Round 889 (Div. 1)229+332341
    2023-05-08 14:05Codeforces Round 872 (Div. 1)384-422308
    2023-04-29 16:50Codeforces Round 869 (Div. 1)170+482350
    2022-12-30 17:05Good Bye 2022: 2023 is NEAR254+842302