题解 | #统计字符#
统计字符
https://www.nowcoder.com/practice/539054b4c33b4776bc350155f7abd8f5
package main
import (
"bufio"
"fmt"
"os"
"unicode"
)
type Char int
const (
Letter Char = iota
Space
Digit
Other
)
func main() {
inputs := bufio.NewScanner(os.Stdin)
inputs.Scan()
str := inputs.Text()
var counts [4]int
for _, r := range str {
switch {
case unicode.IsLetter(r):
counts[Letter]++
case unicode.IsSpace(r):
counts[Space]++
case unicode.IsDigit(r):
counts[Digit]++
default:
counts[Other]++
}
}
for _, count := range counts {
fmt.Println(count)
}
}
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