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Ahmed57

Open on Codeforces · Unique solved

Rating2173· 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
53
Unique solved
1,902
Submissions (all)
7,136
Years with activity
2020–2026

Solved by problem rating

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

  • Unrated272
  • 800–899305
  • 900–999126
  • 1000–1099135
  • 1100–1199116
  • 1200–129993
  • 1300–1399102

Solved by topic

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

  • implementation583
  • greedy579
  • math535
  • dp362
  • brute force333
  • data structures304
  • constructive algorithms

Rating changes

2020

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2020

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2023-12-18 16:35Educational Codeforces Round 160 (Rated for Div. 2)17+1612173
2023-12-16 16:35Codeforces Round 915 (Div. 2)915-712012
2023-12-09 18:05Codeforces Round 914 (Div. 2)298-172083
2023-11-30 18:50Codeforces Round 912 (Div. 2)10+2202100
2023-11-24 16:35Educational Codeforces Round 158 (Rated for Div. 2)
1400–1499
82
  • 1500–159961
  • 1600–169942
  • 1700–179925
  • 1800–189939
  • 1900–199927
  • 2000–209921
  • 2100–219931
  • 2200–229937
  • 2300–239957
  • 2400–249958
  • 2500–259971
  • 2600–269972
  • 2700–279960
  • 2800–289940
  • 2900–299916
  • 3000–309912
  • 3100–31991
  • 3500–35991
  • 229
  • sortings208
  • binary search200
  • number theory143
  • trees139
  • dfs and similar134
  • strings131
  • two pointers118
  • bitmasks118
  • combinatorics115
  • graphs107
  • dsu71
  • divide and conquer67
  • probabilities42
  • interactive37
  • shortest paths32
  • geometry28
  • games25
  • hashing24
  • *special14
  • flows13
  • graph matchings12
  • Other (9 tags)54
  • 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
    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.

    2022

    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.

    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 41/day in 2020)

    2021

    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 71/day in 2021)

    2022

    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 23/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 258/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 90/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 58/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 26/day in 2026)

    1481
    -65
    1880
    2023-06-03 16:35Codeforces Round 876 (Div. 2)89+1271945
    2023-05-25 16:35Educational Codeforces Round 149 (Rated for Div. 2)544+421818
    2023-05-14 16:35Codeforces Round 873 (Div. 2)378+431776
    2023-05-12 16:35Educational Codeforces Round 148 (Rated for Div. 2)637+491733
    2023-05-08 14:05Codeforces Round 872 (Div. 2)1805-621684
    2023-04-09 17:00Codeforces Round 865 (Div. 2)3397-1211746
    2023-03-31 16:35CodeTON Round 4 (Div. 1 + Div. 2, Rated, Prizes!)1554-321867