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jsj0412

Open on Codeforces · Unique solved

Rating2178· 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
57
Unique solved
361
Submissions (all)
818
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.

  • Unrated66
  • 800–89980
  • 900–99915
  • 1000–109918
  • 1100–119926
  • 1200–129920
  • 1300–139923

Solved by topic

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

  • greedy182
  • math127
  • constructive algorithms96
  • brute force81
  • implementation79
  • sortings55
  • dp

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
2025-11-10 17:05Codeforces Round 1063 (Div. 2)52+892178
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)721+42089
2025-10-24 16:35Codeforces Round 1061 (Div. 2)16+1982085
2025-10-19 16:35Codeforces Round 1060 (Div. 2)845-101887
2025-10-12 17:05Codeforces Round 1058 (Div. 1)733
1400–1499
21
  • 1500–159914
  • 1600–169919
  • 1700–179917
  • 1800–189912
  • 1900–199912
  • 2000–20998
  • 2100–21995
  • 2200–22991
  • 2300–23991
  • 2400–24992
  • 2500–25991
  • 53
  • binary search46
  • data structures44
  • two pointers32
  • strings23
  • number theory23
  • bitmasks21
  • games17
  • combinatorics17
  • dfs and similar17
  • graphs16
  • trees14
  • geometry9
  • interactive8
  • divide and conquer7
  • graph matchings4
  • ternary search4
  • dsu3
  • shortest paths3
  • probabilities2
  • schedules2
  • hashing2
  • Other (3 tags)3
  • 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 42/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 33/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 17/day in 2026)

    -32
    1897
    2025-09-21 16:50Codeforces Round 1052 (Div. 2)258+731929
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)1765-91856
    2025-09-17 16:35Codeforces Round 1051 (Div. 2)853+111865
    2025-09-15 16:35Educational Codeforces Round 182 (Rated for Div. 2)1545-351854
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)1589-131889
    2025-07-27 16:35Codeforces Round 1039 (Div. 2)344+671902
    2025-07-22 16:35Educational Codeforces Round 181 (Rated for Div. 2)812+251835