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Top rated · Stats

niddhogg1105

Open on Codeforces · Unique solved

Rating2152· 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
8
Unique solved
113
Submissions (all)
593
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.

  • Unrated13
  • 800–8998
  • 900–9994
  • 1000–10994
  • 1100–11994
  • 1200–12994
  • 1300–13995

Solved by topic

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

  • greedy48
  • math45
  • dp33
  • constructive algorithms31
  • implementation23
  • brute force22
  • data structures

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
2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)1045-312152
2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 202542+1082183
2025-05-24 16:35Codeforces Round 1026 (Div. 2)28+2322075
2025-05-11 17:05Codeforces Round 1024 (Div. 2)229+1561843
2025-04-05 17:35Teza Round 1 (Codeforces Round 1015, Div. 1 + Div. 2)
1400–1499
5
  • 1500–15995
  • 1600–16995
  • 1700–17996
  • 1800–18999
  • 1900–19995
  • 2000–20997
  • 2100–21995
  • 2200–22999
  • 2300–23992
  • 2400–24994
  • 2500–25995
  • 2600–26993
  • 2700–27991
  • 16
  • dfs and similar16
  • binary search16
  • sortings15
  • bitmasks12
  • trees12
  • graphs10
  • number theory10
  • two pointers8
  • combinatorics8
  • divide and conquer7
  • strings6
  • geometry5
  • probabilities4
  • games4
  • shortest paths3
  • ternary search3
  • dsu3
  • interactive3
  • fft2
  • hashing2
  • 2-sat2
  • Other (1 tag)1
  • 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 40/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 10/day in 2026)

    554
    +286
    1687
    2025-03-29 16:35Codeforces Round 1014 (Div. 2)373+4081401
    2025-03-23 08:05Codeforces Round 1012 (Div. 2)2060+321993
    2025-03-22 16:35Codeforces Round 1011 (Div. 2)533+672672