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1296e1.go
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/
1296e1.go
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// 00
package main
import (
"bufio"
"fmt"
"os"
)
func write(f *bufio.Writer, a ...interface{}) {
f.Write([]byte(fmt.Sprint(a...)))
}
type Number interface {
int64 | float64 | int
}
func min[K Number](a K, b K) K {
if a < b {
return a
}
return b
}
func max[K Number](a K, b K) K {
if a > b {
return a
}
return b
}
type Char struct {
c byte
i int
}
func other(s string) string {
if s == "1" {
return "0"
} else {
return "1"
}
}
func main() {
var n int
reader := bufio.NewReader(os.Stdin)
f := bufio.NewWriter(os.Stdout)
defer f.Flush()
fmt.Fscan(reader, &n)
var s string
fmt.Fscan(reader, &s)
chars := make([]Char, n)
for i := 0; i < n; i++ {
chars[i] = Char{c: s[i], i: i}
}
ok := true
ans := make([]string, n)
for i := 0; i < n; i++ {
ans[i] = "-1"
}
for i := 0; i < n; i++ {
if i > 0 && chars[i].c < chars[i-1].c {
j := i
for j > 0 && chars[j].c < chars[j-1].c {
if ans[chars[j-1].i] == "-1" {
ans[chars[j-1].i] = "1"
}
oth := other(ans[chars[j-1].i])
if ans[chars[j].i] == "-1" {
ans[chars[j].i] = oth
} else {
if oth != ans[chars[j].i] {
ok = false
}
}
chars[j], chars[j-1] = chars[j-1], chars[j]
j--
}
}
}
if ok {
write(f, "YES\n")
for i := 0; i < n; i++ {
if ans[i] == "-1" {
write(f, "1")
} else {
write(f, ans[i])
}
}
write(f, "\n")
} else {
write(f, "NO\n")
}
}