hello codeforces,

i am glad to invite you all to my practice mashups, which i am going to start from tomorrow.

it is mainly prepared for those who aspire to become masters (be it candidates, experts, div 2 guys, div 3 guys, div 4 guys, or even an inactive master). so, the mashups will have mostly 1900+ rated problems.

i will share the mashup links through the comments of this blog, so that everyone can access it.

excited to see you guys at the standings.

the upcoming practice mashup will start at Thu, 7 July 2022, 5:35 UTC.

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

UPD:registration is open.Thanks but I am just a newbie

Thanks

Thanks

the second practice mashup will start on 8 July 2022 at 5:35 UTC.

number of problems: 3

duration of mashup: 2:30 hrs

rating of problems: 800, 1900, 2000

UPD:registration is open.the third practice mashup will start on 8th July 2022,

todayat 10:35 UTC.number of problems: 3

duration of mashup: 1:30 hrs

ratings of problems: 800, 1600, 1900

registration is

open.So are you just picking any problem of given difficulty or hand-picking problems?

I am using this: https://randommashupgenerator.netlify.app/ to pick up random problems from codeforces.

Nice initiative. I liked ADE2.

ADE (3) practice mashup will start on 12 July 2022 at 5:35 UTC.

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

UPD:registration is open;PS: my intern drive is ongoing, so i wasn't preparing mashups for few days.

ADE (4) practice mashup will start on 19 July 2022 at 5:35 UTC.

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

UPD:registration is open;ADE (5) practice mashup will start on 30 July 2022 at 09:35 UTC.

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

registration is

open;ADE (6) practice mashup will start on 31st July 2022 at 05:35 UTC (11:05 IST).

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

registration is

open;ADE (7) practice mashup will start on 1st August 2022 at 05:35 UTC (11:05 IST).

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

registration is

open;ADE (8) practice mashup will start on 2nd August 2022 at 05:35 UTC (11:05 IST).

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

registration is

open;ADE (9) practice mashup will start on 3rd August 2022 at 10:05 UTC (15:35 IST).

number of problems: 3

duration of mashup: 2:30 hrs

ratings of problems: 800, 1900, 2000

registration is

open;ADE (10) Practice Mashup will start on 5th August 2022 at 10:05 UTC (15:35 IST).

Problems count: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/5c3004a99447d5cd5d870fb59112e4d13dd0c274

ADE (11) Practice Mashup will start on 9th August 2022 at 09:35 UTC (15:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/361449889e11b8e91fdc90247d09ee30f76948f1

ADE (12) Practice Mashup will start on 10th August 2022 at 10:05 UTC (15:35 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/54cd64d50d981b42a253ac7414f7e9541c024cf8

AD2E (1) Practice Mashup will start on 13th August 2022 at 05:35 UTC (11:05 IST).

Count of problems: 4

Duration: 3:00 hrs

Ratings of problems: 800, 1900, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/c0d407aea3228fbfd8134f903a3dbd5a9f8b993e

AD2E (2) Practice Mashup will start on 17th August 2022 at 06:35 UTC (12:05 IST).

Count of problems: 4

Duration: 3:00 hrs

Ratings of problems: 800, 1900, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/94528ffc6f1b9e0605ccd124920c9f6ace3bf50c

AD2E (3) Practice Mashup will start on 19th August 2022 at 07:35 UTC (13:05 IST).

Count of problems: 4

Duration: 4:00 hrs

Ratings of problems: 800, 1900, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/c0f9fc80d69f70819677a3a43d099e151f74edfb

Today's practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3 Duration: 2:30 hrs Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/2e07a0002aee9c64e5c132cb33e43d65982e1de9

Today's practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/95f2eec4ef9b04a21c3344589a5a6d16a3d93e65

Today's (20th Nov 22) practice mashup will start at 09:05 UTC (14:35 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/0b728d9459b1bec58a2dbff6b6c18311a8b1b8ca

Today's (24th Nov 22) practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/4695c2cf6b4513e544301a43affd46257328718b

cool

Today's (25th Nov 22) practice mashup will start at 05:45 UTC (11:15 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/a76416ffeaa569f94b8883fb2d4461e8881c5152

Today's (27th Nov 22) practice mashup will start at 06:35 UTC (12:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/b1f8519d13b21a9427824fcfb97b553baf5851a4

Today's (28th Nov 22) practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/3bb9cb14905201ab30618cafdc06f6808415167a

Today's (29th Nov 22) practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/3e3130167f9040cf8d40ba5a5a438cecd545eab3

Today's (1st Dec 22) practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/eb80cf83d68c891d97878793d9869f9776b14126

Today's (3rd Dec 22) practice mashup will start at 06:35 UTC (12:05 IST).

Count of problems: 3

Duration: 2:00 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/090d848c8efd9489db266378175db6c1f8d462b4

Today's (4th Dec 22) practice mashup will start at 06:35 UTC (12:05 IST).

Count of problems: 3

Duration: 2:00 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/0693f4571bb0c27ed9eec8a860a8c9b607513014

Today's (11th Dec 22) practice mashup will start at 05:35 UTC (11:05 IST).

Count of problems: 3

Duration: 2:30 hrs

Ratings of problems: 800, 1900, 2000

Registration link: https://codeforces.com/contestInvitation/099f62b9b4a642dd3b56bf65f7cb60db12dd8338

Glad to inform you guys, that I have finally became a master. Now, I don't know what to do next, maybe I could come up with a new blog "Mashups for aspiring IMs" ? Lol.

Do anyone of you have any other interesting ideas for me or the community ?

Sorry for late reply, but it's good you asked this. Actually, when you're fixing the message $$$m_i$$$, then you have to choose rest $$$k_i - 1$$$ messages out of $$$t - 1$$$ messages (note that total messages would also decrease by 1). So, the numerator in your formula was wrong.

Thanks for bringing me to peace with this question. Guess newbie things.. I mess up with indexing stuff

Thanks great mashups for beg

is it recommendable for greys?

greys can try to solve solve 1200-2000 problems. (+500) of your rating is recommended range to maintain balance between upsolving and not getting demotivated