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| // @Title: 猜数字游戏 (Bulls and Cows)
// @Author: 15816537946@163.com
// @Date: 2021-11-08 01:29:44
// @Runtime: 24 ms
// @Memory: 2.3 MB
func getHint(secret string, guess string) string {
record := make(map[byte]int)
n := len(secret)
var aCnt, bCnt int
for i := 0; i < n; i++ {
if secret[i] == guess[i] {
/*
if _, ok := record[secret[i]]; ok {
record[secret[i]]--
} else {
record[secret[i]] = 0
}
*/
aCnt++
//continue
}
if _, ok := record[guess[i]]; ok {
record[guess[i]]++
} else {
record[guess[i]] = 1
}
}
for i := 0; i < n; i++ {
if cnt, ok := record[secret[i]]; ok {
if cnt > 0 {
fmt.Println("before",record[secret[i]])
record[secret[i]]--
fmt.Println("after",record[secret[i]])
bCnt++
}
}
}
return fmt.Sprintf("%dA%dB", aCnt, bCnt-aCnt)
}
|