Exemple #1
0
func Problem_21() int {
	amicables := make([]uint64, 0)
	for i := 1; i < 10000; i++ {
		if x := helpers.IsAmicable(i); x != 0 && x < 10000 {
			amicables = helpers.AppendUnique(amicables, uint64(x), uint64(i))
		}
	}
	sum := 0
	for _, a := range amicables {
		sum += int(a)
	}
	fmt.Printf("The sum of all Amicable Numbers under 10,000 is %d\n", sum)
	return sum
}
Exemple #2
0
func Problem_32() int {
	pandigitals := make([]uint64, 0)
	for i := 1000; i < 10000; i++ {
		factors := helpers.Factorise(uint64(i), true)
		for _, f := range factors {
			intF := int(f)
			multiplicand := strconv.Itoa(i / intF)
			multiplier := strconv.Itoa(intF)
			product := strconv.Itoa(i)
			test := multiplicand + multiplier + product
			if len(test) == 9 && helpers.IsPandigital(test) {
				pandigitals = helpers.AppendUnique(pandigitals, uint64(i))
			}
		}
	}

	sum := 0
	for _, i := range pandigitals {
		sum += int(i)
	}
	fmt.Printf("Sum of all products whose multiplicand/multiplier/product "+
		"identity is 1-9 pandigital is %d\n", sum)
	return sum
}