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mashalah

Open on Codeforces · Unique solved

Rating2387· International 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
42
Submissions (all)
268
Years with activity
2025–2026

Solved by problem rating

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

  • Unrated25
  • 800–8996
  • 900–9991
  • 1000–10991
  • 1400–14992
  • 1500–15991
  • 1800–18993

Solved by topic

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

  • greedy16
  • math14
  • brute force13
  • constructive algorithms9
  • binary search7
  • dp7
  • sortings

Rating changes

2025

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2025

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2026-05-06 08:35Codeforces Round 1097 (Div. 1, Based on Zhili Cup 2026)25+2182387
2026-04-25 17:05Spectral::Cup 2026 Round 1 (Codeforces Round 1094, Div. 1 + Div. 2)273+732169
2026-04-21 16:35Educational Codeforces Round 189 (Rated for Div. 2)24+2112096
2026-04-13 16:35Codeforces Round 1093 (Div. 2)47+2461885
2026-03-29 16:50Codeforces Round 1089 (Div. 2)
2200–2299
2
  • 2700–27991
  • 6
  • implementation6
  • graphs5
  • strings4
  • bitmasks3
  • dfs and similar3
  • number theory3
  • trees3
  • data structures3
  • interactive3
  • *special3
  • two pointers2
  • divide and conquer2
  • hashing2
  • string suffix structures2
  • graph matchings2
  • chinese remainder theorem1
  • games1
  • dsu1
  • geometry1
  • probabilities1
  • matrices1
  • Other (1 tag)1
  • 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 10/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 43/day in 2026)

    92
    +378
    1639
    2026-03-21 16:35Codeforces Round 1087 (Div. 2)338+4581261
    2026-02-26 17:05Codeforces Round 1083 (Div. 2)2048+429803
    2025-11-14 16:35Educational Codeforces Round 184 (Rated for Div. 2)10093+374374