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Top rated · Stats

Ming_Xu

Open on Codeforces · Unique solved

Rating2121· 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
44
Unique solved
1,002
Submissions (all)
3,894
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.

  • Unrated289
  • 800–899112
  • 900–99918
  • 1000–109922
  • 1100–119933
  • 1200–129933
  • 1300–139925

Solved by topic

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

  • greedy338
  • math316
  • dp191
  • brute force184
  • implementation181
  • data structures173
  • constructive algorithms

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)407+602121
2025-10-30 19:35Pinely Round 5 (Div. 1 + Div. 2)894-602061
2025-10-03 17:35Squarepoint Challenge (Codeforces Round 1055, Div. 1 + Div. 2)1027-322121
2025-08-07 17:35Atto Round 1 (Codeforces Round 1041, Div. 1 + Div. 2)781-162153
2025-07-31 17:35Codeforces Round 1040 (Div. 1)
1400–1499
34
  • 1500–159919
  • 1600–169932
  • 1700–179940
  • 1800–189933
  • 1900–199947
  • 2000–209944
  • 2100–219945
  • 2200–229963
  • 2300–239929
  • 2400–249932
  • 2500–259916
  • 2600–269915
  • 2700–27996
  • 2800–28996
  • 2900–29991
  • 3000–30994
  • 3100–31992
  • 3200–32992
  • 170
  • binary search120
  • sortings108
  • dfs and similar90
  • number theory88
  • graphs81
  • combinatorics74
  • trees73
  • bitmasks63
  • two pointers54
  • strings53
  • interactive36
  • divide and conquer33
  • games30
  • geometry28
  • dsu28
  • hashing23
  • shortest paths20
  • probabilities19
  • matrices10
  • ternary search10
  • string suffix structures9
  • Other (10 tags)36
  • 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 88/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 55/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 8/day in 2026)

    342
    +45
    2169
    2025-07-19 16:50Order Capital Round 1 (Codeforces Round 1038, Div. 1 + Div. 2)414+862124
    2025-07-06 17:35EPIC Institute of Technology Round Summer 2025 (Codeforces Round 1036, Div. 1 + Div. 2)813+32038
    2025-07-05 16:35Codeforces Round 1035 (Div. 2)1105-602035
    2025-06-21 16:35Codeforces Round 1033 (Div. 2) and CodeNite 202574+1032095
    2025-06-12 16:35Codeforces Round 1030 (Div. 2)229+641992
    2025-05-31 16:35Codeforces Round 1028 (Div. 2)407+211928
    2025-05-24 16:35Codeforces Round 1026 (Div. 2)453+421907