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leetcode/code/lc771.java at master · mJackie/leetcode · GitHub
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package
code
;
/*
* 771. Jewels and Stones
* 题意：S中出现的字符，在J中也出现的个数
* 难度：Easy
* 分类：Hash Table
* 思路：
* Tips：
*/
public
class
lc771
{
public
int
numJewelsInStones
(
String
J
,
String
S
) {
int
res
=
0
;
for
(
char
c
:
S
.
toCharArray
()){
if
(
J
.
indexOf
(
c
) != -
1
){
res
++;
}
}
return
res
;
}
}
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