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Tag: Count

Educational Codeforces Round 68 (Rated for Div. 2) E. Count The Rectangles

Topic link

The general idea of ​​the topic is that in a plane rectangular coordinate system, N line segments will be given. The line segments are guaranteed to be parallel to the coordinate a

October 19, 2021By Simo CSS codeforces, Count, div, educational, rated, rectanglesLeave a Comment

GroupBY string and count in Linb

I have a collection. The coll has strings:

Location=”Theater=1, Name=regal, Area=Area1″
Location=”Theater=34, Name=Karm, Area=Area4445″ etc. I have to extract the name bits from the string.

October 17, 2021By Simo Mathematics Count, groupby, LINB, Medium, stringLeave a Comment

VHDL – Error: XST: 827 = Signal Count Uncosystem, Synchronous Description Error

I tried to simulate an elevator, and as a result I got an error

ERROR:Xst:827 = Signal count cannot be synthesized, bad synchronous description I am following the code from this source [https

October 17, 2021By Simo Mathematics Count, Description, error, signal, Synchronization, Synthesis, Unable, vHDL, XSTLeave a Comment

ACWING – 338 – Counting Issues = Digital DP

https://www.acwing.com/problem/content/description/340/

It’s the first time to do this kind of numbering, and it feels like it is the same in theory , The return is not 1 but his contribution

October 16, 2021By Simo Mathematics ACWING, Count, digit, DP, problemLeave a Comment

Delphi Xe10.1 reference count (Delphi Xe10.1 Berlin finally added support for Weak, unsafe)

The previous version of Delphi does not support Weak and UnSafe references of interfaces, and Weak and UnSafe of objects are supported, and it is only supported on Android and Ios platforms.

October 5, 2021By Simo Delphi Add, Berlin, Count, Delphi, final, Pate, port, Quote, support, UNSAFE, Weak, XE, XE10.1Leave a Comment

Group-6.1 Bus Overview

I. Examination syllabus

1) Overview of the bus

The basic concept of the bus; the classification of the bus; the composition and performance indicators of the bus

2 ) Bus arbitrati

September 24, 2021By Simo Motherboard 6.1, bus, Count, Group, overviewLeave a Comment

How to Max in SQLite (count (x))

I have a SQLite table blog_posts. Each blog post has an id and blog_id.

If I want to know how much each blog has Blog posts:

SELECT blog_id, count(1) posts FROM blog_posts group by blog

September 22, 2021By Simo Sqlite Count, How to, max, SQLITELeave a Comment

PostgreSQL – Postgres hierarchy – counting of sub-level, sorted by subkey or grandson

I want to know how to write a postgres subquery so that the following example will output what I need.

id parent_id postdate
1   -1 2015-03-10
2     1 2015-03-11 (child level 1)
3     1 2015

September 21, 2021By Simo Postgresql Child, Count, Date, Grandson, Hierarchy, Level, Postgres, PostgreSQL, SORT, structure, SubLeave a Comment

PostgreSQL – Reset ID count after table deletion ()

For testing purposes, I clear (delete) each table before executing the code.

for table in reversed (db.metadata.sorted_tables):
engine.execute(table.delete())
do_stuff() However, the id valu

September 21, 2021By Simo Postgresql Count, delete, ID, PostgreSQL, reset, tableLeave a Comment
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