CF Elite Tracker
TopExploreDivisionsLearnPracticeUser solvedHelp
HelpLog inSign up

Top rated · Stats

DreamNguyen_1409

Open on Codeforces · Unique solved

Rating2175· 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
27
Unique solved
178
Submissions (all)
394
Years with activity
2025–2026

Solved by problem rating

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

  • Unrated15
  • 800–89938
  • 900–99911
  • 1000–109911
  • 1100–11999
  • 1200–129914
  • 1300–139914

Solved by topic

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

  • greedy87
  • math55
  • constructive algorithms41
  • implementation35
  • dp32
  • data structures29
  • brute force

Rating changes

2025

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2025

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-02-23 17:05Codeforces Round 1082 (Div. 1)258+552175
2026-01-29 17:35Codeforces Round 1077 (Div. 1)135+1702120
2026-01-17 17:35Codeforces Round 1073 (Div. 2)156+681950
2026-01-07 17:35Hello 2026801+821882
2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)215
1400–1499
9
  • 1500–15998
  • 1600–16997
  • 1700–17996
  • 1800–18999
  • 1900–19995
  • 2000–20997
  • 2100–21994
  • 2200–22993
  • 2300–23992
  • 2400–24992
  • 2500–25991
  • 2900–29991
  • 3500–35992
  • 26
  • binary search25
  • sortings19
  • games16
  • *special14
  • strings14
  • number theory14
  • combinatorics14
  • two pointers14
  • bitmasks13
  • dfs and similar12
  • divide and conquer8
  • interactive8
  • graphs8
  • trees8
  • dsu4
  • shortest paths2
  • schedules2
  • expression parsing2
  • ternary search2
  • probabilities2
  • hashing2
  • Other (5 tags)5
  • 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 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 21/day in 2026)

    +141
    1800
    2025-12-27 17:35Good Bye 20253779-221659
    2025-12-11 16:35Codeforces Round 1070 (Div. 2)1682-41681
    2025-11-29 16:35Codeforces Round 1067 (Div. 2)823+571685
    2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)1880+11628
    2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)4057-971627
    2025-11-16 16:35Codeforces Round 1064 (Div. 2)955+81724
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)539+1091716