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Aurora_xz

Open on Codeforces · Unique solved

Rating2177· 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
1,177
Submissions (all)
2,750
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.

  • Unrated363
  • 800–899188
  • 900–99940
  • 1000–109953
  • 1100–119952
  • 1200–129941
  • 1300–139945

Solved by topic

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

  • greedy371
  • math341
  • implementation227
  • constructive algorithms202
  • brute force168
  • dp139
  • sortings

Rating changes

2022

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

2022

Download PNG

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

Jan
Feb
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Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-21 16:35Educational Codeforces Round 189 (Rated for Div. 2)18+1472177
2026-03-08 17:35Codeforces Round 1085 (Div. 1 + Div. 2)773-212030
2026-02-11 17:35Codeforces Round 1079 (Div. 1)395+372051
2026-01-23 16:35Codeforces Round 1075 (Div. 2)166+702014
2026-01-07 17:35Hello 2026476
1400–1499
49
  • 1500–159954
  • 1600–169948
  • 1700–179951
  • 1800–189935
  • 1900–199948
  • 2000–209923
  • 2100–219930
  • 2200–229919
  • 2300–239915
  • 2400–249910
  • 2500–25996
  • 2600–26996
  • 3100–31991
  • 132
  • data structures129
  • binary search108
  • number theory85
  • strings74
  • two pointers67
  • dfs and similar64
  • graphs55
  • combinatorics53
  • trees49
  • bitmasks46
  • games31
  • geometry25
  • dsu19
  • shortest paths17
  • interactive16
  • divide and conquer15
  • hashing11
  • probabilities11
  • ternary search5
  • graph matchings3
  • string suffix structures2
  • Other (4 tags)6
  • Jun
    Jul
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    Sep
    Oct
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    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
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    Dec

    LessMore (max 29/day in 2022)

    2023

    Download PNG

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
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    Aug
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    Dec

    LessMore (max 75/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 34/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 45/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
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    Dec

    LessMore (max 18/day in 2026)

    +122
    1944
    2025-12-05 16:35Codeforces Round 1068 (Div. 2)1584-451822
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)1534-561867
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)1459-431923
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)326+511966
    2025-10-24 16:35Codeforces Round 1061 (Div. 2)1460-611915
    2025-10-19 16:35Codeforces Round 1060 (Div. 2)546-61976
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)715-481982