Data update

This commit is contained in:
Ingy döt Net 2026-02-01 16:33:20 -08:00
parent 5150844a7d
commit 4bb20c9b71
7735 changed files with 38060 additions and 199180 deletions

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@ -1,42 +1,42 @@
puts: equ 9 ; MS-DOS print string syscall
amount: equ 20 ; Amount of antiprimes to find
cpu 8086
org 100h
xor si,si ; SI = current number
xor cx,cx ; CH = max # of factors, CL = # of antiprimes
cand: inc si
mov di,si ; DI = maximum factor to test
shr di,1
mov bp,1 ; BP = current candidate
xor bl,bl ; BL = factor count
.test: mov ax,si ; Test current candidate
xor dx,dx
div bp
test dx,dx ; Evenly divisible?
jnz .next
inc bx ; Then increment factors
.next: inc bp ; Next possible factor
cmp bp,si ; Are we there yet?
jbe .test ; If not, try next factor
cmp bl,ch ; Is it an antiprime?
jbe cand ; If not, next candidate
inc cx ; If so, increment the amount of antiprimes seen
mov ch,bl ; Update maximum amount of factors
mov bx,nbuf ; Convert current number to ASCII
mov ax,si
mov di,10
digit: xor dx,dx ; Extract a digit
div di
add dl,'0' ; Add ASCII 0
dec bx
mov [bx],dl ; Store it
test ax,ax ; Any more digits?
jnz digit ; If so, get next digit
mov dx,bx
mov ah,puts
int 21h ; Print using MS-DOS
cmp cl,amount ; Do we need any more antiprimes?
jb cand ; If so, find the next one
ret ; Otherwise, back to DOS
db '.....' ; Placeholder for decimal output
nbuf: db ' $'
puts: equ 9 ; MS-DOS print string syscall
amount: equ 20 ; Amount of antiprimes to find
cpu 8086
org 100h
xor si,si ; SI = current number
xor cx,cx ; CH = max # of factors, CL = # of antiprimes
cand: inc si
mov di,si ; DI = maximum factor to test
shr di,1
mov bp,1 ; BP = current candidate
xor bl,bl ; BL = factor count
.test: mov ax,si ; Test current candidate
xor dx,dx
div bp
test dx,dx ; Evenly divisible?
jnz .next
inc bx ; Then increment factors
.next: inc bp ; Next possible factor
cmp bp,si ; Are we there yet?
jbe .test ; If not, try next factor
cmp bl,ch ; Is it an antiprime?
jbe cand ; If not, next candidate
inc cx ; If so, increment the amount of antiprimes seen
mov ch,bl ; Update maximum amount of factors
mov bx,nbuf ; Convert current number to ASCII
mov ax,si
mov di,10
digit: xor dx,dx ; Extract a digit
div di
add dl,'0' ; Add ASCII 0
dec bx
mov [bx],dl ; Store it
test ax,ax ; Any more digits?
jnz digit ; If so, get next digit
mov dx,bx
mov ah,puts
int 21h ; Print using MS-DOS
cmp cl,amount ; Do we need any more antiprimes?
jb cand ; If so, find the next one
ret ; Otherwise, back to DOS
db '.....' ; Placeholder for decimal output
nbuf: db ' $'

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@ -1,38 +0,0 @@
with Ada.Text_IO; use Ada.Text_IO;
procedure Antiprimes is
function Count_Divisors (N : Integer) return Integer is
Count : Integer := 1;
begin
for i in 1 .. N / 2 loop
if N mod i = 0 then
Count := Count + 1;
end if;
end loop;
return Count;
end Count_Divisors;
Results : array (1 .. 20) of Integer;
Candidate : Integer := 1;
Divisors : Integer;
Max_Divisors : Integer := 0;
begin
for i in Results'Range loop
loop
Divisors := Count_Divisors (Candidate);
if Max_Divisors < Divisors then
Results (i) := Candidate;
Max_Divisors := Divisors;
exit;
end if;
Candidate := Candidate + 1;
end loop;
end loop;
Put_Line ("The first 20 anti-primes are:");
for I in Results'Range loop
Put (Integer'Image (Results (I)));
end loop;
New_Line;
end Antiprimes;

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@ -4,22 +4,22 @@ max_divisors = 0
Print "Los primeros 20 anti-primos son:"
For j = 0 To 19
Do
divisors = count_divisors(Candidate)
If max_divisors < divisors Then
Results[j] = Candidate
max_divisors = divisors
Exit Do
End If
Candidate += 1
Until false
Print Results[j];" ";
Do
divisors = count_divisors(Candidate)
If max_divisors < divisors Then
Results[j] = Candidate
max_divisors = divisors
Exit Do
End If
Candidate += 1
Until false
Print Results[j];" ";
Next j
Function count_divisors(n)
cont = 1
For i = 1 To n/2
If (n % i) = 0 Then cont += 1
Next i
count_divisors = cont
cont = 1
For i = 1 To n/2
If (n % i) = 0 Then cont += 1
Next i
count_divisors = cont
End Function

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@ -1,12 +1,12 @@
using System;
using System.Linq;
using System.Collections.Generic;
public static class Program
{
public static void Main() =>
Console.WriteLine(string.Join(" ", FindAntiPrimes().Take(20)));
static IEnumerable<int> FindAntiPrimes() {
int max = 0;
for (int i = 1; ; i++) {
@ -16,7 +16,7 @@ public static class Program
yield return i;
}
}
int CountDivisors(int n) => Enumerable.Range(1, n / 2).Count(i => n % i == 0) + 1;
}
}

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@ -1,84 +0,0 @@
******************************************************************
* COBOL solution to Anti-primes challange
* The program was run on OpenCobolIDE
******************************************************************
IDENTIFICATION DIVISION.
PROGRAM-ID. ANGLE-PRIMES.
ENVIRONMENT DIVISION.
DATA DIVISION.
WORKING-STORAGE SECTION.
77 ANTI-PRIMES-CTR PIC 9(3) VALUE 0.
77 FACTORS-CTR PIC 9(3) VALUE 0.
77 WS-INTEGER PIC 9(5) VALUE 1.
77 WS-MAX PIC 9(5) VALUE 0.
77 WS-I PIc 9(5) VALUE 0.
77 WS-LIMIT PIC 9(5) VALUE 1.
77 WS-REMAINDER PIC 9(5).
01 OUT-HDR PIC X(23) VALUE 'SEQ ANTI-PRIME FACTORS'.
01 OUT-LINE.
05 OUT-SEQ PIC 9(3).
05 FILLER PIC X(3) VALUE SPACES.
05 OUT-ANTI PIC ZZZZ9.
05 FILLER PIC X(4) VALUE SPACES.
05 OUT-FACTORS PIC ZZZZ9.
PROCEDURE DIVISION.
000-MAIN.
DISPLAY OUT-HDR.
PERFORM 100-GET-ANTI-PRIMES
VARYING WS-INTEGER FROM 1 By 1
UNTIL ANTI-PRIMES-CTR >= 20.
STOP RUN.
100-GET-ANTI-PRIMES.
SET FACTORS-CTR TO 0.
COMPUTE WS-LIMIT = 1 + WS-INTEGER ** .5.
PERFORM 200-COUNT-FACTORS
VARYING WS-I FROM 1 BY 1
UNTIL WS-I >= WS-LIMIT.
IF FACTORS-CTR > WS-MAX
ADD 1 TO ANTI-PRIMES-CTR
COMPUTE WS-MAX = FACTORS-CTR
MOVE ANTI-PRIMES-CTR TO OUT-SEQ
MOVE WS-INTEGER TO OUT-ANTI
MOVE FACTORS-CTR TO OUT-FACTORS
DISPLAY OUT-LINE
END-IF.
200-COUNT-FACTORS.
COMPUTE WS-REMAINDER =
FUNCTION MOD(WS-INTEGER WS-I).
IF WS-REMAINDER = ZERO
ADD 1 TO FACTORS-CTR
IF WS-INTEGER NOT = WS-I ** 2
ADD 1 TO FACTORS-CTR
END-IF
END-IF.
******************************************************************
* OUTPUT:
******************************************************************
* SEQ ANTI-PRIME FACTORS
* 001 1 1
* 002 2 2
* 003 4 3
* 004 6 4
* 005 12 6
* 006 24 8
* 007 36 9
* 008 48 10
* 009 60 12
* 010 120 16
* 011 180 18
* 012 240 20
* 013 360 24
* 014 720 30
* 015 840 32
* 016 1260 36
* 017 1680 40
* 018 2520 48
* 019 5040 60
* 020 7560 64
******************************************************************

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@ -1,5 +1,4 @@
func divcnt v .
n = v
func divcnt n .
tot = 1
p = 2
while p <= sqrt n

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@ -1,31 +1,33 @@
defmodule AntiPrimes do
def divcount(n) when is_integer(n), do: divcount(n, 1, 0)
def divcount(n) when is_integer(n), do: divcount(n, 1, 0)
def divcount(n, d, count) when d * d > n, do: count
def divcount(n, d, count) do
divs = case rem(n, d) do
0 ->
case n - d * d do
0 -> 1
_ -> 2
end
_ -> 0
end
divcount(n, d + 1, count + divs)
end
def divcount(n, d, count) when d * d > n, do: count
def divcount(n, d, count) do
divs = case rem(n, d) do
0 ->
case n - d * d do
0 -> 1
_ -> 2
end
_ -> 0
end
divcount(n, d + 1, count + divs)
end
def antiprimes(n), do: antiprimes(n, 1, 0, [])
def antiprimes(n), do: antiprimes(n, 1, 0, [])
def antiprimes(0, _, _, l), do: Enum.reverse(l)
def antiprimes(n, m, max, l) do
count = divcount(m)
case count > max do
true -> antiprimes(n-1, m+1, count, [m|l])
false -> antiprimes(n, m+1, max, l)
end
end
def antiprimes(0, _, _, l), do: Enum.reverse(l)
def antiprimes(n, m, max, l) do
count = divcount(m)
case count > max do
true -> antiprimes(n-1, m+1, count, [m|l])
false -> antiprimes(n, m+1, max, l)
end
end
def main() do
:io.format("The first 20 anti-primes are ~w~n", [antiprimes(20)])
end
def main() do
:io.format("The first 20 anti-primes are ~w~n", [antiprimes(20)])
end
end
AntiPrimes.main()

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@ -1,33 +1,33 @@
-- First 20 antiprimes.
function count_factors(number)
local count = 0
for attempt = 1, number do
local remainder = number % attempt
if remainder == 0 then
count = count + 1
end
end
return count
local count = 0
for attempt = 1, number do
local remainder = number % attempt
if remainder == 0 then
count = count + 1
end
end
return count
end
function antiprimes(goal)
local list, number, mostFactors = {}, 1, 0
while #list < goal do
local factors = count_factors(number)
if factors > mostFactors then
table.insert(list, number)
mostFactors = factors
end
number = number + 1
end
return list
local list, number, mostFactors = {}, 1, 0
while #list < goal do
local factors = count_factors(number)
if factors > mostFactors then
table.insert(list, number)
mostFactors = factors
end
number = number + 1
end
return list
end
function recite(list)
for index, item in ipairs(list) do
print(item)
end
for index, item in ipairs(list) do
print(item)
end
end
print("The first 20 antiprimes:")

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@ -1,14 +1,14 @@
def countDivisors(n)
if (n < 2)
return 1
end
count = 2
for i in range(2, int(n/2))
if (n % i) = 0
count += 1
end
end
return count
if (n < 2)
return 1
end
count = 2
for i in range(2, int(n/2))
if (n % i) = 0
count += 1
end
end
return count
end
maxDiv = 0
@ -16,11 +16,11 @@ count = 0
println "The first 20 anti-primes are:"
for (n = 1) (count < 20) (n += 1)
d = countDivisors(n)
if d > maxDiv
print format("%d ", n)
maxDiv = d
count += 1
end
d = countDivisors(n)
if d > maxDiv
print format("%d ", n)
maxDiv = d
count += 1
end
end
println

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@ -12,12 +12,15 @@ MODULE AntiPrimes;
VAR
Facts,Div:INTEGER;
BEGIN
IF N < 2 THEN RETURN 1 END;
Facts := 2;
FOR Div := 2 TO N DIV 2 DO
IF N MOD Div = 0 THEN INC(Facts) END;
IF N < 2 THEN
Facts := 1
ELSE
Facts := 2;
FOR Div := 2 TO N DIV 2 DO
IF N MOD Div = 0 THEN INC(Facts) END
END
END;
RETURN Facts;
RETURN Facts
END Factors;
BEGIN

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@ -2,41 +2,41 @@ package antiprimes
import "core:fmt"
main :: proc() {
AntiPrimeCount, MaxDivisors, Divisors, n: u64
MaxAntiPrime: u64 = 20
fmt.print("\nFirst 20 anti-primes\n")
fmt.println("--------------------")
for (AntiPrimeCount < MaxAntiPrime) {
n += 1
Divisors = DivisorCount(n)
if Divisors > MaxDivisors {
fmt.print(n, " ")
MaxDivisors = Divisors
AntiPrimeCount += 1
}
}
AntiPrimeCount, MaxDivisors, Divisors, n: u64
MaxAntiPrime: u64 = 20
fmt.print("\nFirst 20 anti-primes\n")
fmt.println("--------------------")
for (AntiPrimeCount < MaxAntiPrime) {
n += 1
Divisors = DivisorCount(n)
if Divisors > MaxDivisors {
fmt.print(n, " ")
MaxDivisors = Divisors
AntiPrimeCount += 1
}
}
}
DivisorCount :: proc(v: u64) -> u64 {
total: u64 = 1
a := v
if a == 0 {
return 0
}
for a % 2 == 0 {
total += 1
a /= 2
}
for p: u64 = 3; p * p <= a; p += 2 {
count: u64 = 1
for a % p == 0 {
count += 1
a /= p
}
total *= count
}
if a > 1 {
total *= 2
}
return total
total: u64 = 1
a := v
if a == 0 {
return 0
}
for a % 2 == 0 {
total += 1
a /= 2
}
for p: u64 = 3; p * p <= a; p += 2 {
count: u64 = 1
for a % p == 0 {
count += 1
a /= p
}
total *= count
}
if a > 1 {
total *= 2
}
return total
}

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@ -14,7 +14,7 @@ do -- Find the first 20 antiprimes.
ndc = {}
for i = 1, maxNumber do ndc[ i ] = 1 end
for i = 2, maxNumber do
for j = i, maxNumber, i do ++ ndc[ j ] end
for j = i, maxNumber, i do ndc[ j ] += 1 end
end
end
local factors = ndc[ number ]
@ -22,7 +22,7 @@ do -- Find the first 20 antiprimes.
table.insert( list, number )
mostFactors = factors
end
++ number
number += 1
end
return list
end

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@ -1,5 +1,5 @@
-- 8 May 2025
include Settings
-- 23 Aug 2025
include Setting
arg xx
if xx = '' then
xx = 1500000
@ -25,8 +25,4 @@ say
call Timer
exit
include Numbers
include Functions
include Special
include Helper
include Abend
include Math

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@ -1,5 +1,5 @@
-- 8 May 2025
include Settings
-- 23 Aug 2025
include Setting
arg xx
if xx = '' then
xx = 1500000
@ -25,9 +25,4 @@ say
call Timer
exit
include Numbers
include Functions
include Special
include Sequences
include Helper
include Abend
include Math

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@ -1,10 +1,10 @@
fcn properDivsN(n) //--> count of proper divisors. 1-->1, wrong but OK here
{ [1.. (n + 1)/2 + 1].reduce('wrap(p,i){ p + (n%i==0 and n!=i) }) }
fcn antiPrimes{ // -->iterator
fcn antiPrimes{ // -->iterator
Walker.chain([2..59],[60..*,30]).tweak(fcn(c,rlast){
last,mx := rlast.value, properDivsN(c);
if(mx<=last) return(Void.Skip);
rlast.set(mx);
c
}.fp1(Ref(0))).push(1); // 1 has no proper divisors
}.fp1(Ref(0))).push(1); // 1 has no proper divisors
}