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cs71107

Open on Codeforces · Unique solved

Rating2234· 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
78
Unique solved
952
Submissions (all)
1,471
Years with activity
2018–2022

Solved by problem rating

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

  • Unrated28
  • 800–899107
  • 900–99950
  • 1000–109961
  • 1100–119929
  • 1200–129960
  • 1300–139964

Solved by topic

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

  • greedy359
  • math334
  • implementation303
  • constructive algorithms198
  • brute force163
  • sortings138
  • dp

Rating changes

2018

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

Jan
Feb
Mar
Apr
May

Submission volume

Download all years PNG

2018

Download PNG

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

Jan
Feb
Mar
Apr

Recent rated rounds

When (UTC)ContestRankΔNew
2021-01-29 16:35Educational Codeforces Round 103 (Rated for Div. 2)24+1352234
2020-11-01 13:05Codeforces Round 680 (Div. 1, based on Moscow Team Olympiad)321+692099
2020-10-10 17:50Codeforces Global Round 112054-922030
2020-09-06 16:35Codeforces Round 668 (Div. 1)477+172122
2020-08-30 16:35Codeforces Round 666 (Div. 1)
1400–1499
50
  • 1500–159980
  • 1600–169965
  • 1700–179965
  • 1800–189965
  • 1900–199970
  • 2000–209946
  • 2100–219939
  • 2200–229927
  • 2300–239925
  • 2400–249913
  • 2500–25995
  • 2600–26993
  • 136
  • data structures129
  • binary search102
  • number theory81
  • strings79
  • graphs78
  • dfs and similar68
  • two pointers60
  • combinatorics45
  • trees45
  • bitmasks41
  • dsu31
  • geometry24
  • divide and conquer19
  • shortest paths19
  • games15
  • hashing12
  • interactive12
  • ternary search8
  • flows7
  • 2-sat6
  • probabilities4
  • Other (8 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.

    2019

    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.

    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
    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.

    May
    Jun
    Jul
    Aug
    Sep
    Oct
    Nov
    Dec

    LessMore (max 7/day in 2018)

    2019

    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 33/day in 2019)

    2020

    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 17/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 10/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 3/day in 2022)

    1069
    -88
    2105
    2020-08-16 17:35Codeforces Global Round 10489+202193
    2020-08-12 16:35Codeforces Round 664 (Div. 1)613-332173
    2020-07-29 16:35Educational Codeforces Round 92 (Rated for Div. 2)27+1552206
    2020-07-21 16:35Codeforces Round 658 (Div. 1)989-592051
    2020-07-04 17:15Codeforces Global Round 91175-112110
    2020-05-12 15:05Codeforces Round 641 (Div. 1)885-612121
    2020-04-12 16:05Codeforces Round 633 (Div. 1)333+542182