func main() {
starttime := time.Now()
last := 0
for i := 65000000; i > 0; i-- {
set := euler.SplitSeq(length, i)
if set[0] != last {
last = set[0]
fmt.Println(last)
}
if isSpecial(set) {
fmt.Println(set, sum(set))
}
}
fmt.Println("Elapsed time:", time.Since(starttime))
}
func test(repeat string, n, d int) (N int, S int64) {
for i := 0; int64(i) < euler.Choose(int64(n), int64(d)); i++ {
indices := euler.SplitSeq(d, i)
for j := 0; int64(j) < euler.IntExp(10, int64(d)); j++ {
insertstring := strconv.Itoa(j)
for len(insertstring) < d {
insertstring = "0" + insertstring
}
merged := ""
current := 0
for index := 0; index < n; index++ {
if current < d && index == indices[d-current-1] {
merged += insertstring[current : current+1]
current++
} else {
merged += repeat
}
}
mergedint, _ := strconv.ParseInt(merged, 10, 64)
//exclude leading zeroes
if mergedint > euler.IntExp(10, int64(n)-1) {
if euler.IsPrime(mergedint) {
//fmt.Println(mergedint)
N++
S += mergedint
}
}
}
}
return
}