gawk "NR==1{max=min=$1}NR>1{max=max>$1?max:$1;min=min>$1?$1:min;}END{print \"Max: \"max,\"Min: \"min}" a.txt
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@echo off & setlocal enabledelayedexpansion
set /a "M=1<<31^-1"
for /f "tokens=1-3 delims=. " %%a in (a.txt) do (
    set /a "#奇数-=~%%a%%2,#偶数+=%%a%%2,#除三+=%%a%%3,#和+=%%a,x=%%a,t=x-#最大,#最大=x-(t&t>>31),p=#最小,p=p+(p-1>>31&M),t=p-x,#最小=x+(t&t>>31)"
)
set #
pause
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for /l %i in (7 8 127) do set /a "_=1<<%i>>%i+1, IMSB=_&%i|~_&IMSB"
set IMSB
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@echo off & setlocal enabledelayedexpansion

set /a "_min = 255, _min_cnt = 1 << 31 ^ -1"
for /f %%a in (a.txt) do (

    set /a "x = %%a"
    set /a "_cnt_!x:~0,2! += 1"
    set /a "_sum += x"
    set /a "_cnt_odd += x & 1"
    set /a "_cnt_even += ~x & 1"
    set /a "_cnt_triple += ^!(x %% 3)"
    set /a "t = _max - x >> 31, _max = t & x | ~t & _max"
    set /a "t = x - _min >> 31, _min = t & x | ~t & _min"

    if not defined @%%a (
        for /f "tokens=2 delims=:" %%c in ('find /c "%%a" a.txt') do (
            set /a "x = %%c, # = %%a"
            set /a "t = _max_cnt - x >> 31, _max_cnt = t & x | ~t & _max_cnt, _max_cnt# = t & # | ~t & _max_cnt#"
            set /a "t = x - _min_cnt >> 31, _min_cnt = t & x | ~t & _min_cnt, _min_cnt# = t & # | ~t & _min_cnt#"
        )
        set "@%%a=."
    )
)

set _
pause
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