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algorithm/Week_03/id_139/Leetcode_139_997.java at master · feixiangcode/algorithm · GitHub
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algorithm
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Week_03
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id_139
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Leetcode_139_997.java
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algorithm
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Week_03
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id_139
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Leetcode_139_997.java
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class
Solution
{
public
int
findJudge
(
int
N
,
int
[][]
trust
) {
int
[][]
people
=
new
int
[
N
][
2
];
for
(
int
[]
person
:
trust
){
int
out
=
person
[
0
];
int
in
=
person
[
1
];
people
[
out
-
1
][
0
] ++;
people
[
in
-
1
][
1
] ++;
}
for
(
int
i
=
0
;
i
<
N
;
i
++){
if
(
people
[
i
][
0
] ==
0
&&
people
[
i
][
1
] ==
N
-
1
)
return
i
+
1
;
}
return
-
1
;
}
}
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