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umazing

Open on Codeforces · Unique solved

Rating2163· 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
52
Unique solved
430
Submissions (all)
847
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.

  • Unrated12
  • 800–89991
  • 900–99932
  • 1000–109925
  • 1100–119919
  • 1200–129926
  • 1300–139922

Solved by topic

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

  • math204
  • greedy202
  • brute force117
  • implementation112
  • constructive algorithms112
  • dp107
  • 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
2026-01-29 17:35Codeforces Round 1077 (Div. 1)479-512163
2026-01-07 17:35Hello 2026517+182214
2025-12-27 17:35Good Bye 2025556+282196
2025-11-23 12:35Codeforces Round 1066 (Div. 1 + Div. 2)535+42168
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)728
1400–1499
18
  • 1500–159917
  • 1600–169912
  • 1700–179921
  • 1800–189912
  • 1900–199916
  • 2000–209916
  • 2100–219916
  • 2200–229912
  • 2300–239914
  • 2400–249931
  • 2500–259914
  • 2600–26991
  • 2700–27992
  • 2800–28991
  • 72
  • binary search64
  • sortings57
  • number theory46
  • combinatorics39
  • bitmasks38
  • two pointers38
  • dfs and similar35
  • graphs35
  • trees29
  • strings28
  • dsu22
  • games19
  • divide and conquer14
  • geometry12
  • interactive10
  • shortest paths8
  • ternary search7
  • *special6
  • graph matchings6
  • matrices6
  • hashing5
  • Other (8 tags)18
  • 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 21/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 16/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 9/day in 2026)

    -23
    2164
    2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)272+322187
    2025-10-12 17:05Codeforces Round 1058 (Div. 1)193+1292155
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)554+722026
    2025-09-24 14:50Codeforces Round 1053 (Div. 1)458+1021954
    2025-09-20 17:35Codeforces Global Round 29 (Div. 1 + Div. 2)11032-2651852
    2025-08-28 17:35Codeforces Round 1046 (Div. 1)353+542117
    2025-08-26 16:35Codeforces Round 1045 (Div. 2)220+472063