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Top rated · Stats

Mohanad_Nahhal

Open on Codeforces · Unique solved

Rating2125· 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
23
Unique solved
2,388
Submissions (all)
8,689
Years with activity
2019–2026

Solved by problem rating

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

  • Unrated599
  • 800–899126
  • 900–99926
  • 1000–109939
  • 1100–119933
  • 1200–129946
  • 1300–139941

Solved by topic

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

  • greedy655
  • math634
  • dp580
  • data structures470
  • implementation414
  • brute force394
  • constructive algorithms

Rating changes

2019

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

Jan
Feb
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Apr
May

Submission volume

Download all years PNG

2019

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-12-09 18:05Codeforces Round 914 (Div. 2)23+1522125
2023-12-03 16:35Educational Codeforces Round 159 (Rated for Div. 2)173+671973
2023-06-04 16:45Codeforces Round 877 (Div. 2)45+2141906
2023-03-12 16:35Nebius Welcome Round (Div. 1 + Div. 2)4034-1151692
2023-01-03 17:05Hello 20232020
1400–1499
44
  • 1500–159933
  • 1600–169951
  • 1700–179981
  • 1800–189966
  • 1900–1999175
  • 2000–2099214
  • 2100–2199187
  • 2200–2299131
  • 2300–2399125
  • 2400–2499114
  • 2500–2599102
  • 2600–269953
  • 2700–279941
  • 2800–289925
  • 2900–299915
  • 3000–309910
  • 3100–31996
  • 3200–32992
  • 3300–33991
  • 3400–34991
  • 3500–35991
  • 383
  • binary search277
  • dfs and similar277
  • graphs253
  • sortings230
  • combinatorics221
  • trees217
  • number theory200
  • bitmasks167
  • strings159
  • two pointers146
  • dsu103
  • divide and conquer87
  • shortest paths66
  • hashing64
  • geometry59
  • probabilities54
  • interactive45
  • games43
  • matrices22
  • string suffix structures21
  • fft19
  • Other (9 tags)87
  • Jun
    Jul
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    Sep
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    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.

    2020

    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.

    2021

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

    Jan
    Feb
    Mar
    Apr
    May
    Jun
    Jul
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    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.

    2022

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

    Jan
    Feb
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    Jun
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    Aug
    Sep
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    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
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    Jun
    Jul
    Aug
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    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
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    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
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    Jun
    Jul
    Aug
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    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
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    Dec

    LessMore (max 9/day in 2019)

    2020

    Download PNG

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

    Jan
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    LessMore (max 49/day in 2020)

    2021

    Download PNG

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

    Jan
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    LessMore (max 70/day in 2021)

    2022

    Download PNG

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

    Jan
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    LessMore (max 34/day in 2022)

    2023

    Download PNG

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

    Jan
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    LessMore (max 55/day in 2023)

    2024

    Download PNG

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

    Jan
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    LessMore (max 67/day in 2024)

    2025

    Download PNG

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

    Jan
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    May
    Jun
    Jul
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    Sep
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    LessMore (max 39/day in 2025)

    2026

    Download PNG

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

    Jan
    Feb
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    May
    Jun
    Jul
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    LessMore (max 75/day in 2026)

    -14
    1807
    2022-12-27 16:35Codeforces Round 841 (Div. 2) and Divide by Zero 2022167+1381821
    2022-08-06 16:35Codeforces Round 812 (Div. 2)1475+71683
    2022-08-04 16:35Educational Codeforces Round 133 (Rated for Div. 2)4413-991676
    2021-10-10 11:05Educational Codeforces Round 115 (Rated for Div. 2)2068-931775
    2021-10-03 16:35Codeforces Round 746 (Div. 2)617+141868
    2021-09-30 12:15Codeforces Round 745 (Div. 2)227+541854
    2021-09-20 16:35Educational Codeforces Round 114 (Rated for Div. 2)564+571800