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lxzgitcode
Leetcode-Java
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master
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Leetcode-Java
/
leetcode
/
solution
/
src
/
GuessTheWord.java
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41 lines (37 loc) · 1.33 KB
master
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Leetcode-Java
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leetcode
/
solution
/
src
/
GuessTheWord.java
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import
java
.
util
.
ArrayList
;
import
java
.
util
.
List
;
import
java
.
util
.
Random
;
public
class
GuessTheWord
{
public
interface
Master
{
int
guess
(
String
word
);
}
/**
* 这题的意思是有一个word列表,取其中一个作为secret,现在让你来猜哪个是secret,最多猜10次,
* 你每猜一个单词,就告诉你这个单词和secret匹配的字母数。
* 这里的思路很直接,就是随机取一个单词开始,获得了匹配的字母数后在单词列表中找到可能的候选项
* 然后再迭代一次,这样猜10次
*/
public
void
findSecretWord
(
String
[]
wordlist
,
Master
master
) {
Random
random
=
new
Random
();
for
(
int
i
=
0
;
i
<
10
;
i
++) {
String
word
=
wordlist
[
random
.
nextInt
(
wordlist
.
length
)];
int
match
=
master
.
guess
(
word
);
List
<
String
>
list
=
new
ArrayList
<>();
for
(
String
s
:
wordlist
) {
if
(
match
(
s
,
word
) ==
match
) {
list
.
add
(
s
);
}
}
wordlist
=
list
.
toArray
(
new
String
[
0
]);
}
}
private
int
match
(
String
s
,
String
t
) {
int
match
=
0
;
for
(
int
i
=
0
;
i
<
s
.
length
();
i
++) {
if
(
s
.
charAt
(
i
) ==
t
.
charAt
(
i
)) {
match
++;
}
}
return
match
;
}
}
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