๋ฐ์ํ
https://www.acmicpc.net/problem/2562
์ฝ๋
import java.util.Arrays;
import java.util.Scanner;
import java.util.stream.IntStream;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int[] arr = new int[9];
for(int i=0; i<arr.length; i++) {
arr[i] = scan.nextInt();
}
int max = Arrays.stream(arr).max().getAsInt();
int []indexArr = IntStream.range(0, arr.length).filter(i -> arr[i] == max).toArray();
System.out.println(max + "\n" + (indexArr[0]+1));
scan.close();
}
}
ํ์ด
Stream์ max()๋ก ์ต๋๊ฐ์ ๊ตฌํ๊ณ , getASInt()๋ก ๋ณํํ๋ค.
filter()์ฐ์ฐ์ ํตํด ๋ฐฐ์ด์ ์์๊ฐ ์ต๋๊ฐ์ผ๋๋ฅผ ๊ตฌํด์ฃผ๊ณ , toArray()๋ฅผ ํตํด ๋ฐฐ์ด๋ก ์ธ๋ฑ์ค๋ค์ ๋ฐฐ์ด๋ก ์์ฑํ๋ค.
(์ต๋๊ฐ์ด ์ฌ๋ฌ๊ฐ์ธ๊ฒฝ์ฐ ํด๋น ์ธ๋ฑ์ค๊ฐ ์ ๋ถ ๋ด๊ธด๋ค.)
์คํธ๋ฆผ์ด ์ ๊ธฐํ๊ธด ํ๋ค.. ๊ฐ๋ ์ฑ์ ์ข์ง๋ง ์ฑ๋ฅ๋ฉด์์๋ ๋ง์ด ๋ฐ์ ธ๋ด์ผ ํ ๊ฒ ๊ฐ๋ค.
Stream / ์ผ๋ฐ for๋ฌธ
for๋ฌธ ์ฝ๋
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scan = new Scanner(System.in);
int []arr = new int[9];
int index = 0;
int max = 0;
for(int i=0; i<arr.length; i++) {
arr[i] = scan.nextInt(); // ์
๋ ฅ๋ฐ๊ธฐ
// ๋ฐ๋ณต๋ฌธ๋์ ์ต๋๊ฐ๊ณผ ์ต๋๊ฐ์ผ๋์ index ์ฐพ๊ธฐ
if(arr[i] > max) {
max = arr[i];
index = i;
}
}
System.out.println(max);
System.out.println(index+1); // ๋ฐฐ์ด์ 0๋ถํฐ ์์ํ๋ฏ๋ก +1
}
}
๋ฐ์ํ
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๋๊ธ