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algorithm/Week_04/id_1/LeetCode_169_1.java at master · feixiangcode/algorithm · GitHub
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algorithm
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Week_04
/
id_1
/
LeetCode_169_1.java
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algorithm
/
Week_04
/
id_1
/
LeetCode_169_1.java
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import
java
.
util
.
Collection
;
import
java
.
util
.
Collections
;
import
java
.
util
.
HashMap
;
import
java
.
util
.
TreeMap
;
class
Solution
{
public
int
majorityElement
(
int
[]
nums
) {
HashMap
<
Integer
,
Integer
>
map
=
new
HashMap
<>();
int
length
=
nums
.
length
;
for
(
int
i
=
0
;
i
<
length
;
i
++) {
int
times
=
map
.
getOrDefault
(
nums
[
i
],
0
) +
1
;
if
(
times
>
length
/
2
) {
return
nums
[
i
];
}
map
.
put
(
nums
[
i
],
times
);
}
return
0
;
}
}
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