package main import ( "fmt" "strconv" "strings" ) func main() { var n int fmt.Scan(&n) // 能成为自守数的,末尾应该是1,5,6,因为只有这三个数的平方末尾是相等的 var count int for i := 0; i <= n; i++ { if i == 0 { count++ } if i % 10 == 1 || i % 10 == 5 || i % 10 == 6 { tmp1 := strconv.Itoa(i) tmp...