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RaduM

Open on Codeforces · Unique solved

Rating2129· 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
48
Unique solved
740
Submissions (all)
1,938
Years with activity
2023–2026

Solved by problem rating

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

  • Unrated18
  • 800–899131
  • 900–99916
  • 1000–109928
  • 1100–119940
  • 1200–129939
  • 1300–139937

Solved by topic

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

  • greedy387
  • math284
  • dp189
  • constructive algorithms184
  • implementation168
  • data structures154

Rating changes

2023

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2023

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-10-24 16:35Codeforces Round 1061 (Div. 2)6+2442129
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)941-101885
2025-09-21 16:50Codeforces Round 1052 (Div. 2)1598-641895
2025-08-28 17:35Codeforces Round 1046 (Div. 1)670-81959
2025-05-31 16:35Codeforces Round 1028 (Div. 1)515
1400–1499
31
  • 1500–159926
  • 1600–169926
  • 1700–179938
  • 1800–189940
  • 1900–199949
  • 2000–209947
  • 2100–219942
  • 2200–229942
  • 2300–239927
  • 2400–249934
  • 2500–259914
  • 2600–26996
  • 2700–27997
  • 2800–28991
  • 2900–29991
  • brute force
    150
  • binary search145
  • sortings107
  • graphs80
  • dfs and similar79
  • number theory69
  • trees67
  • combinatorics66
  • two pointers63
  • bitmasks62
  • strings38
  • dsu36
  • interactive32
  • games25
  • divide and conquer22
  • geometry19
  • ternary search18
  • shortest paths14
  • probabilities11
  • graph matchings8
  • hashing6
  • matrices5
  • 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.

    2024

    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.

    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 23/day in 2023)

    2024

    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 43/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 21/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)

    +61
    1967
    2025-03-23 08:05Codeforces Round 1012 (Div. 1)598-601906
    2025-02-28 16:50Codeforces Round 1007 (Div. 2)1083-451966
    2025-01-17 16:35Codeforces Round 997 (Div. 2)80+1282011
    2025-01-12 16:35Codeforces Round 996 (Div. 2)929+81883
    2025-01-04 17:05Hello 2025992+751875
    2024-12-20 16:35Codeforces Round 994 (Div. 2)1891-411800
    2024-12-08 16:35Codeforces Round 992 (Div. 2)1366-401841