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Top rated · Stats

justin_zed

Open on Codeforces · Unique solved

Rating2270· 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
34
Unique solved
1,084
Submissions (all)
2,499
Years with activity
2024–2026

Solved by problem rating

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

  • Unrated22
  • 800–899118
  • 900–99921
  • 1000–109929
  • 1100–119940
  • 1200–129942
  • 1300–139940

Solved by topic

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

  • greedy504
  • math502
  • dp324
  • constructive algorithms308
  • brute force282
  • implementation249
  • data structures

Rating changes

2024

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2024

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)1266-1372270
2025-12-27 17:35Good Bye 2025256+372407
2025-10-12 17:05Codeforces Round 1058 (Div. 1)164+542370
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)502-172316
2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)
1400–1499
43
  • 1500–159928
  • 1600–169927
  • 1700–179942
  • 1800–189943
  • 1900–199946
  • 2000–209965
  • 2100–219936
  • 2200–229955
  • 2300–239956
  • 2400–2499119
  • 2500–2599118
  • 2600–269973
  • 2700–27999
  • 2800–28995
  • 2900–29995
  • 3000–30991
  • 3100–31991
  • 248
  • number theory179
  • binary search166
  • graphs156
  • dfs and similar149
  • combinatorics140
  • trees135
  • sortings134
  • bitmasks128
  • two pointers82
  • strings70
  • dsu64
  • interactive64
  • divide and conquer57
  • games50
  • hashing34
  • probabilities34
  • shortest paths31
  • geometry21
  • graph matchings17
  • matrices13
  • ternary search13
  • Other (10 tags)56
  • 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 28/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 32/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 24/day in 2026)

    470
    -7
    2333
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)221+272340
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)534-82313
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)158+842321
    2025-05-31 16:35Codeforces Round 1028 (Div. 1)442-172237
    2025-05-11 17:05Codeforces Round 1024 (Div. 1)166+952254
    2025-04-19 16:35Neowise Labs Contest 1 (Codeforces Round 1018, Div. 1 + Div. 2)443+562159
    2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)1425-762103