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Top rated · Stats

qwynick

Open on Codeforces · Unique solved

Rating2118· 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
25
Unique solved
826
Submissions (all)
2,308
Years with activity
2022–2026

Solved by problem rating

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

  • Unrated41
  • 800–899163
  • 900–99925
  • 1000–109933
  • 1100–119945
  • 1200–129935
  • 1300–139946

Solved by topic

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

  • greedy388
  • math289
  • implementation269
  • constructive algorithms190
  • brute force176
  • dp172
  • data structures

Rating changes

2022

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2022

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2025-12-29 16:35Educational Codeforces Round 186 (Rated for Div. 2)40+1312118
2025-11-28 16:35Educational Codeforces Round 185 (Rated for Div. 2)209+601987
2025-04-26 11:35Codeforces Round 1021 (Div. 1)491-161927
2025-03-23 08:05Codeforces Round 1012 (Div. 1)411+371943
2025-01-22 14:05Codeforces Round 1000 (Div. 2)
1400–1499
36
  • 1500–159939
  • 1600–169940
  • 1700–179957
  • 1800–189955
  • 1900–199974
  • 2000–209951
  • 2100–219935
  • 2200–229917
  • 2300–239916
  • 2400–24996
  • 2500–25997
  • 2600–26992
  • 2700–27992
  • 2900–29991
  • 155
  • sortings129
  • binary search119
  • dfs and similar90
  • graphs78
  • strings76
  • two pointers71
  • bitmasks71
  • number theory69
  • trees60
  • combinatorics43
  • interactive37
  • dsu33
  • shortest paths24
  • divide and conquer22
  • games20
  • geometry17
  • hashing13
  • probabilities10
  • string suffix structures6
  • ternary search5
  • communication4
  • Other (7 tags)15
  • 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.

    2023

    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.

    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 51/day in 2022)

    2023

    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 48/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 69/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 49/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 13/day in 2026)

    1452
    -43
    1906
    2025-01-17 16:35Codeforces Round 997 (Div. 2)1459-661949
    2024-06-16 11:05Codeforces Round 953 (Div. 2)58+1422015
    2024-05-31 12:05Codeforces Round 949 (Div. 2)415+431873
    2024-04-21 16:50Codeforces Round 940 (Div. 2) and CodeCraft-23704+261830
    2024-03-05 16:35Codeforces Round 932 (Div. 2)789+451804
    2024-03-01 16:35Codeforces Round 931 (Div. 2)3312-871759
    2024-02-29 16:35Codeforces Round 930 (Div. 2)742-21846