China DOS Union

Originally posted by bjsh at 2007-4-30 04:16 PM:
Spared some time to write this..
The result is: 24691356902469134

Not bad, but temporary files will be generated.

In fact, there is a way to not generate temporary files. youxia01 gave us the best hint:)

Originally, I didn't want to generate temporary files either;

Originally, I wanted to replace / with alt+13;

But I didn't achieve my idea; I really wanted to go and debug to see;

But I was short on time.;

So I just wrote it down..

set "num1=qwer/asdf2/asd34f/1234567890123456/asdf/aaaa"
set "num2=aaaaa2/23456789012345678/asdfssasd/asdaa"

These two numbers should be
2341234567890123456
+ 223456789012345678
-----------------------------------------
2564691356902469134
It seems that there are numbers mixed among the letters in the front.

[ Last edited by zhoushijay on 2007-4-30 at 04:52 PM ]

Originally posted by zhoushijay at 2007-4-30 04:50 PM:
set "num1=qwer/asdf2/asd34f/1234567890123456/asdf/aaaa"
set "num2=aaaaa2/23456789012345678/asdfssasd/asdaa"

These two numbers should be
2341234567890123456
+ 22345678901234567 ...

Oh. We just need the group of pure numbers.

Originally posted by bjsh at 2007-4-30 16:44:
Originally didn't want to generate temporary files;

Originally wanted to replace / with alt+13;

But my idea wasn't realized; really wanted to go debug and take a look;

But unfortunately time was relatively tight.;

Just wrote it down..

To replace / with a newline, you can refer to this:

@echo off&Setlocal EnableDelayedExpansion

for /f "delims=" %%a in (1.txt) do (

        set str=%%a

        set str=!str:/=$_!

        exit|cmd/kprompt !str!>>new_.txt

)

start new_.txt

The original content contains some non-standard or hard-to-understand parts. Here is the translation:

I originally wrote a big number addition, and it was modified according to the requirements

@ECHO OFF 2>nul 3>nul&setlocal enabledelayedexpansion

set "num1=qwer/asdf2/asd34f/1234567890123456/asdf/aaaa"

set "num2=aaaaa2/23456789012345678/asdfssasd/asdaa"

set num=%num1:/= % %num2:/= %

for %%i in (%num%) do echo %%i|findstr /b /e *&&SET Z=/0%%i !z!

call :next %z%&&goto :eof

:next

set A=%~1&set B=%~2

:ADD

SET/AX-=1

CALL SET/AT1=%%A:~%X%,1%%+%%B:~%X%,1%%||(

ECHO %T3%%C%&&PAUSE&&GOTO :EOF)

CALL SET T3=%%A:~2,%X%%%%%B:~2,%X%%%

SET/A1/T2&&SET/AT1=T1+1

SET/AT2=1/(T1/10)||SET T2=0

SET C=%T1:~-1%%C%

GOTO ADD

SET/A1/T2&&SET/AT1=T1+1
SET/AT2=1/(T1/10)||SET T2=0
This is a bit unclear?

SET/A1/T2 && SET/AT1=T1+1

Brother event79, can you explain it?

This is to perform the addition of single digits incrementally from right to left by character positions.

SET/A 1/T2 && SET/AT1=T1+1 // set /a 1/t2 is used to judge whether t2 (t2 is the carry of the previous cycle) is zero. If not, add 1 to the current result t1.

SET/AT2=1/(T1/10) || SET T2=0 // set /a t2=1/(t1/10) is used to judge whether the current cycle result (t1) is greater than 10. If it is greater than ten, t2 will be assigned 1 (the previous step of the next cycle). If it is less than ten, set the carry t2 to zero.

Originally posted by everest79 at 2007-4-30 05:47 PM:
This is adding the units digits incrementally from right to left by character position

SET/A1/T2&&SET/AT1=T1+1 // set /a 1/t2 is used to judge whether t2 (t2 is the carry from the previous loop) is zero. If not, add 1 to the current result t1
SET/AT2=1/(T1/10)||SET T2=0 // set /a t2=1/(t1/10) is used to judge whether the current loop result (t1) is greater than 10. If it is greater than ten, t2 will be assigned 1 (for the next loop step). If it is less than ten, the carry t2 is set to zero

Thanks brother for the explanation, I understand the meaning of this sentence!

New question: Why set/a1/t2&&set/at1=t1+1
What's the use of adding this /?

According to your statement: This sentence is equivalent to>
set /a xxx= 1 / t2
Using the particularity of set /a:　
If xxx is less than 1, then xxx= 0
Being 0 satisfies the condition. Then t2 += 1

Learned another trick. It's a bit similar to the feeling of set /p? And without the = sign.

set /a a=1+1 can be abbreviated as set/aa=1+1. At that time, I just saw it in someone else's example, so I wrote it like that. It's not a good writing habit

Originally posted by everest79 at 2007-4-30 06:00 PM:
set /a a=1+1 can be abbreviated as set/aa=1+1. At that time, I just saw it in someone else's example, so I wrote it like that. It's not a good writing habit.

set /a a=1/a is also equivalent to set /a1/a??

No, it's not.
`set /a a=1/a` is a calculation assignment.
`set /a 1/a` is just a calculation.

There seems to be a bit of an issue with the code for 21F. Let's continue to make modifications.

The testing is as follows:

19586

453

10039

Press any key to continue...

I also send a section of immature code (when there are more segments, the efficiency is relatively high):

::code by youxi01@cn-dos.net

@echo off & setlocal enabledelayedexpansion

set "str1=qwer/asdf2/asd34f/13546641654546546654654654144553098785546154/asdf/aaaa"

set "str2=aaaaa2/453216543225443263845482842643/asdfssasd/asdaa"

call :GetNum "%str1%" num1

call :GetNum "%str2%" num2

call :Split %num1%

set/a Mnum=%num%,num=0,flag=0

call :Split %num2%

if %Mnum% LSS %num% set/a Mnum=%num%

set/a Mnum_=%Mnum%-1

for /l %%i in (1 1 %Mnum_%) do (

   set/a Rnum%%i+=!flag!

   if !Rnum%%i! GTR 10000 set/a flag=1

   set Rnum%%i=000!Rnum%%i!

   set Rnum%%i=!Rnum%%i:~-4!

   set Rstr=!Rnum%%i!!Rstr!)

set/a Rnum%Mnum%+=%flag%

echo !Rnum%Mnum%!!Rstr!

pause>nul

:GetNum OBJ Res 

   for /f "delims=/ tokens=1,*" %%i in ("%~1") do (

       if %%i LSS a set %2=%%i & goto :eof

       call :GetNum "%%j" %2

     ) & goto :eof

:Split OBJ

    set str=%~1

    set/a num+=1

    if %str% LSS 10000 set/a Rnum%num%+=%str% & goto :eof

    set/a Rnum%num%+=10000%str:~-4%%%10000

    set str=%str:~0,-4%

    call :Split "%str%"

Originally posted by youxi01 at 2007-5-2 04:35 AM:
There seems to be a bit of an issue with the code for 21F; it needs to be modified further:
Test as follows:

19586

453

10039

Press any key to continue. . .

I'll also post a piece of immature code myself (if there are many segments...

The code is really tiring to read..

Is there an algorithm??

Give a hint?

::code by youxi01@cn-dos.net
@echo off & setlocal enabledelayedexpansion

set "str1=qwer/asdf2/asd34f/13546641/asdf/aaaa"
set "str2=aaaaa2/45321/asdfssasd/asdaa"

call :GetNum "%str1%" num1
call :GetNum "%str2%" num2

call :Split %num1%

REM Mnum saves the number of segments of the result (used to accept the maximum number of segments);
REM Reset the value of num to 0 to continue calling the "function"
REM flag is the carry flag, if it is 1, the next segment number is added by 1; here it is the initial value, set to 1.
set/a Mnum=%num%,num=0,flag=0

call :Split %num2%
if %Mnum% LSS %num% set/a Mnum=%num%
set/a Mnum_=%Mnum%-1

for /l %%i in (1 1 %Mnum_%) do (
set/a Rnum%%i+=!flag!
if !Rnum%%i! GTR 10000 set/a flag=1

REM Adding 000 in front is to fill the number, to prevent numbers with less than 4 digits like 333.
set Rnum%%i=000!Rnum%%i!

set Rnum%%i=!Rnum%%i:~-4!
set Rstr=!Rnum%%i!!Rstr!)

set/a Rnum%Mnum%+=%flag%
echo !Rnum%Mnum%!!Rstr!

pause>nul

:GetNum OBJ Res
for /f "delims=/ tokens=1,*" %%i in ("%~1") do (

REM Use whether it is less than a to detect whether it is a number. If it is, it must be less than a (no matter how many digits it is)
REM If a number is detected, exit.
if %%i LSS a set %2=%%i & goto :eof

REM Loop detection;
call :GetNum "%%j" %2
) & goto :eof

:Split OBJ
set str=%~1
set/a num+=1

REM If the cut number is less than 10000, set its own value to the original value plus the number and exit;
if %str% LSS 10000 set/a Rnum%num%+=%str% & goto :eof

REM Use the willsort method to eliminate errors caused by set/a calculation similar to 0001;
set/a Rnum%num%+=10000%str:~-4%%%10000

set str=%str:~0,-4%
call :Split "%str%"