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Top rated · Stats

Dindin

Open on Codeforces · Unique solved

Rating2163· 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
74
Unique solved
806
Submissions (all)
1,577
Years with activity
2023–2026

Solved by problem rating

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

  • Unrated45
  • 800–899166
  • 900–99948
  • 1000–109938
  • 1100–119957
  • 1200–129945
  • 1300–139938

Solved by topic

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

  • greedy283
  • math254
  • implementation204
  • dp194
  • brute force133
  • constructive algorithms123
  • data structures

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-05-06 08:35Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)232+122163
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)352+502151
2026-04-21 16:35Educational Codeforces Round 189 (Rated for Div. 2)61+982101
2026-02-25 16:35Educational Codeforces Round 187 (Rated for Div. 2)337+192003
2026-02-11 17:35
1400–1499
38
  • 1500–159942
  • 1600–169940
  • 1700–179940
  • 1800–189933
  • 1900–199937
  • 2000–209938
  • 2100–219924
  • 2200–229928
  • 2300–239919
  • 2400–24998
  • 2500–25999
  • 2600–26994
  • 2700–27991
  • 2800–28994
  • 2900–29992
  • 3100–31992
  • 122
  • dfs and similar111
  • sortings100
  • binary search92
  • graphs86
  • trees72
  • number theory64
  • strings61
  • two pointers55
  • bitmasks53
  • dsu36
  • shortest paths34
  • combinatorics33
  • games27
  • *special21
  • interactive18
  • hashing17
  • geometry16
  • divide and conquer15
  • probabilities11
  • ternary search7
  • graph matchings5
  • Other (10 tags)19
  • 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 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 13/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 19/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 13/day in 2026)

    Codeforces Round 1079 (Div. 1)
    473
    +29
    1984
    2026-01-07 17:35Hello 2026847+511955
    2025-12-19 17:05Codeforces Global Round 31 (Div. 1 + Div. 2)491+1241904
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)850+181780
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)1503+61762
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)311+1411756
    2025-11-10 17:05Codeforces Round 1063 (Div. 2)2584-271615
    2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)4238-801642