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aucoder123

Open on Codeforces · Unique solved

Rating2188· 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
39
Unique solved
308
Submissions (all)
738
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.

  • Unrated28
  • 800–89956
  • 900–99910
  • 1000–109917
  • 1100–119911
  • 1200–129913
  • 1300–139913

Solved by topic

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

  • greedy161
  • math112
  • implementation80
  • constructive algorithms74
  • data structures68
  • brute force68

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
2025-11-06 17:35Codeforces Global Round 30 (Div. 1 + Div. 2)408+352188
2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)379+72153
2025-10-10 16:50Codeforces Round 1057 (Div. 2)41+1222146
2025-10-06 16:35Educational Codeforces Round 183 (Rated for Div. 2)623-242024
2025-10-05 18:35Codeforces Round 1056 (Div. 2)
1400–1499
16
  • 1500–159911
  • 1600–16997
  • 1700–179911
  • 1800–189915
  • 1900–199912
  • 2000–209910
  • 2100–219910
  • 2200–229911
  • 2300–239934
  • 2400–24995
  • 2500–259912
  • 2600–26992
  • 2700–27991
  • 2900–29993
  • dp
    62
  • binary search46
  • sortings43
  • combinatorics35
  • graphs28
  • two pointers28
  • dfs and similar27
  • number theory27
  • trees24
  • strings24
  • bitmasks24
  • games16
  • divide and conquer11
  • interactive9
  • dsu6
  • probabilities6
  • hashing5
  • geometry4
  • shortest paths3
  • graph matchings2
  • string suffix structures1
  • fft1
  • 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 30/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 11/day in 2026)

    17
    +213
    2048
    2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)763+1021835
    2025-09-17 16:35Codeforces Round 1051 (Div. 2)1720-71733
    2025-09-15 16:35Educational Codeforces Round 182 (Rated for Div. 2)2205-321740
    2025-09-09 16:35Codeforces Round 1049 (Div. 2)2709-581772
    2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)1149+481830
    2025-07-22 16:35Educational Codeforces Round 181 (Rated for Div. 2)1894-301782
    2025-06-12 16:35Codeforces Round 1030 (Div. 2)7401-1551812