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wltt

Open on Codeforces · Unique solved

Rating2143· 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
171
Submissions (all)
579
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.

  • Unrated11
  • 800–89942
  • 900–9999
  • 1000–10995
  • 1100–119911
  • 1200–129910
  • 1300–13998

Solved by topic

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

  • greedy88
  • math70
  • implementation64
  • brute force50
  • dp37
  • data structures33
  • binary search

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
2025-01-22 14:05Codeforces Round 1000 (Div. 2)47+1272143
2024-10-28 16:35Educational Codeforces Round 171 (Rated for Div. 2)690-212016
2024-10-14 16:35Educational Codeforces Round 170 (Rated for Div. 2)21+2682037
2024-10-06 08:05Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)656+1431769
2024-09-27 16:05Codeforces Round 975 (Div. 2)
1400–1499
7
  • 1500–159915
  • 1600–16994
  • 1700–17999
  • 1800–18999
  • 1900–199910
  • 2000–20993
  • 2100–21994
  • 2200–22998
  • 2300–23991
  • 2400–24991
  • 2600–26991
  • 2700–27992
  • 2800–28991
  • 33
  • constructive algorithms28
  • sortings21
  • dfs and similar18
  • number theory18
  • graphs17
  • strings17
  • two pointers13
  • bitmasks12
  • trees12
  • combinatorics8
  • dsu7
  • divide and conquer6
  • geometry5
  • shortest paths5
  • games4
  • interactive4
  • ternary search3
  • hashing3
  • probabilities2
  • fft1
  • chinese remainder theorem1
  • Other (2 tags)2
  • 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 36/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 43/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 7/day in 2026)

    413
    +224
    1626
    2024-09-21 17:00Codeforces Round 974 (Div. 3)77+4271402
    2024-09-20 16:35Codeforces Round 973 (Div. 2)1568+425975
    2024-09-14 16:35Codeforces Round 972 (Div. 2)3000+550550