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highscorekit
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sort
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HIndex.java
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HIndex.java
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/*H-Index
문제 설명
H-Index는 과학자의 생산성과 영향력을 나타내는 지표입니다. 어느 과학자의 H-Index를 나타내는 값인 h를 구하려고 합니다. 위키백과1에 따르면, H-Index는 다음과 같이 구합니다.
어떤 과학자가 발표한 논문 n편 중, h번 이상 인용된 논문이 h편 이상이고 나머지 논문이 h번 이하 인용되었다면 h가 이 과학자의 H-Index입니다.
어떤 과학자가 발표한 논문의 인용 횟수를 담은 배열 citations가 매개변수로 주어질 때, 이 과학자의 H-Index를 return 하도록 solution 함수를 작성해주세요.
제한사항
과학자가 발표한 논문의 수는 1편 이상 1,000편 이하입니다.
논문별 인용 횟수는 0회 이상 10,000회 이하입니다.
입출력 예
citations return
[3, 0, 6, 1, 5] 3
입출력 예 설명
이 과학자가 발표한 논문의 수는 5편이고, 그중 3편의 논문은 3회 이상 인용되었습니다. 그리고 나머지 2편의 논문은 3회 이하 인용되었기 때문에 이 과학자의 H-Index는 3입니다.*/
package
highscorekit
.
sort
;
public
class
HIndex
{
public
static
void
main
(
String
[]
args
) {
// TODO Auto-generated method stub
int
[]
arr
= {
3
,
0
,
6
,
1
,
5
};
System
.
out
.
println
(
solution
(
arr
));
}
public
static
int
solution
(
int
[]
citations
) {
int
max
=
citations
.
length
;
int
answer
=
0
;
while
(
max
>
0
) {
int
cnt
=
0
;
for
(
int
i
:
citations
) {
if
(
i
>=
max
)
cnt
++;
}
if
(
cnt
>=
max
) {
return
max
;
}
max
--;
}
return
answer
;
}
}
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