๐Ÿ“œ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ/BAEKJOON\์ˆ˜ํ•™ 1, ์ˆ˜ํ•™ 2

๋ฐฑ์ค€ 3009๋ฒˆ : ๋„ค ๋ฒˆ์งธ ์  (JAVA) ๋ฌธ์ œ ํ’€์ด

2020. 10. 27. 15:01
๋ชฉ์ฐจ
  1. ๋ฌธ์ œ
  2. ์ž…๋ ฅ
  3. ์ถœ๋ ฅ
  4. ์˜ˆ์ œ ์ž…๋ ฅ 1
  5. ์˜ˆ์ œ ์ถœ๋ ฅ 1
  6. ๋‚˜์˜ ํ’€์ด
  7. ๋‹ค๋ฅธ ์‚ฌ๋žŒ์˜ ํ’€์ด
๋ฐ˜์‘ํ˜•

 

 

 

 

                                                                            

์‹œ๊ฐ„ ์ œํ•œ ๋ฉ”๋ชจ๋ฆฌ ์ œํ•œ   ์ œ์ถœ ์ •๋‹ต ๋งž์€ ์‚ฌ๋žŒ    ์ •๋‹ต ๋น„์œจ
1 ์ดˆ 128 MB 11475 8287 7581 74.127%

 

 

๋ฌธ์ œ

์„ธ ์ ์ด ์ฃผ์–ด์กŒ์„ ๋•Œ, ์ถ•์— ํ‰ํ–‰ํ•œ ์ง์‚ฌ๊ฐํ˜•์„ ๋งŒ๋“ค๊ธฐ ์œ„ํ•ด์„œ ํ•„์š”ํ•œ ๋„ค ๋ฒˆ์งธ ์ ์„ ์ฐพ๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค.

์ž…๋ ฅ

์„ธ ์ ์˜ ์ขŒํ‘œ๊ฐ€ ํ•œ ์ค„์— ํ•˜๋‚˜์”ฉ ์ฃผ์–ด์ง„๋‹ค. ์ขŒํ‘œ๋Š” 1๋ณด๋‹ค ํฌ๊ฑฐ๋‚˜ ๊ฐ™๊ณ , 1000๋ณด๋‹ค ์ž‘๊ฑฐ๋‚˜ ๊ฐ™์€ ์ •์ˆ˜์ด๋‹ค.

์ถœ๋ ฅ

์ง์‚ฌ๊ฐํ˜•์˜ ๋„ค ๋ฒˆ์งธ ์ ์˜ ์ขŒํ‘œ๋ฅผ ์ถœ๋ ฅํ•œ๋‹ค.

์˜ˆ์ œ ์ž…๋ ฅ 1

30  20

10  10

10  20

์˜ˆ์ œ ์ถœ๋ ฅ 1

30 10

 

 

์ด ๋ฌธ์ œ๋Š” ๋ณ„๋กœ ์–ด๋ ต์ง€๊ฐ€ ์•Š๋‹ค. ์ฒซ ๋ฒˆ์งธ ์ž…๋ ฅ์„ ๋ณด๋ฉด 30, 10, 10 ์ด ์ž…๋ ฅ๋˜๊ณ , ๋„ค ๋ฒˆ์งธ ์ ์˜ ์ขŒํ‘œ๋Š” 30์ด ๋˜๋ฉด ๋˜๋Š”๊ฒƒ์ด๋‹ค.

๋‚ด๊ฐ€ ์ƒ๊ฐํ•ด๋‚ธ ๋ฐฉ๋ฒ•์€ ๋ฐฐ์—ด์„ ๋‘๊ฐœ๋ฅผ ๋งŒ๋“ค์–ด์„œ ํ•ด๋‹น ์ธ๋ฑ์Šค์˜ ๊ฐ’์„ ์ฆ๊ฐ€ ์‹œํ‚จ ํ›„, ๋งˆ์ง€๋ง‰์— ๋ฐฐ์—ด์˜ ๊ฐ’์„ ๊ฒ€์‚ฌํ•ด์„œ ๊ฐ’์ด  2๊ฐ€ ์•„๋‹Œ 1์ธ ๊ฐ’๋งŒ ์ถœ๋ ฅ ์‹œํ‚ค๋ฉด ๋œ๋‹ค.

 

 

 

๋‚˜์˜ ํ’€์ด

public class Main {
    static int[] xrr = new int[1001];
    static int[] yrr = new int[1001];
    public static void main(String[] args) throws IOException {
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st;

        for (int i = 0; i <= 2; i++) {
            st = new StringTokenizer(bf.readLine());
            int x = Integer.parseInt(st.nextToken());
            int y = Integer.parseInt(st.nextToken());
            xrr[x]++;
            yrr[y]++;
        }
        for (int i = 1; i < xrr.length; i++) {
            if (xrr[i] == 1) {
                bw.write(i + " ");
                break;
            }
        }
        for (int i = 1; i < yrr.length; i++) {
            if (yrr[i] == 1) {
                bw.write(i +"");
                break;
            }
        }
        bw.flush();
        bw.close();
    }
}

 

 

๋‹ค๋ฅธ ์‚ฌ๋žŒ์˜ ํ’€์ด

 

๋‹ค๋ฅธ ์‚ฌ๋žŒ์˜ ํ’€์ด๋ฅผ ๋ณด๋‹ค๊ฐ€ XOR ์—ฐ์‚ฐ์„ ์ด์šฉํ•ด์„œ ํ’€์ดํ•œ ๊ฒƒ์„ ๋ดค๋‹ค. XOR์—ฐ์‚ฐ์œผ๋กœ ๋น„๊ตํ•ด์„œ ๋งˆ์ง€๋ง‰ ๊ฒฐ๊ณผ๋ฅผ ์ถœ๋ ฅ์‹œํ‚ค๋Š” ๊ฒƒ์ธ๋ฐ ๋Œ€๋ฐ•์ด๋‹ค.

 

XOR ์—ฐ์‚ฐ์€ ?

                         X                                                 Y                                               XOR

0 0 0
0 1 1
1 0 1
1 1 0

 

 

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader bf = new BufferedReader(new InputStreamReader(System.in));
        BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out));
        StringTokenizer st;
        int a = 0;
        int b = 0;
        for (int i = 0; i <= 2; i++) {
            st = new StringTokenizer(bf.readLine());
            int x = Integer.parseInt(st.nextToken());
            int y = Integer.parseInt(st.nextToken());
            a ^= x;
            b ^= y;
        }
        bw.write(a + " " + b);
        bw.flush();
        bw.close();
    }
}

 

๋ฐ˜์‘ํ˜•
์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)
  1. ๋ฌธ์ œ
  2. ์ž…๋ ฅ
  3. ์ถœ๋ ฅ
  4. ์˜ˆ์ œ ์ž…๋ ฅ 1
  5. ์˜ˆ์ œ ์ถœ๋ ฅ 1
  6. ๋‚˜์˜ ํ’€์ด
  7. ๋‹ค๋ฅธ ์‚ฌ๋žŒ์˜ ํ’€์ด
'๐Ÿ“œ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ/BAEKJOON\์ˆ˜ํ•™ 1, ์ˆ˜ํ•™ 2' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
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๋ฐฑ์ค€ 3009๋ฒˆ : ๋„ค ๋ฒˆ์งธ ์  (JAVA) ๋ฌธ์ œ ํ’€์ด
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* ๋‹จ์ถ•ํ‚ค๋Š” ํ•œ๊ธ€/์˜๋ฌธ ๋Œ€์†Œ๋ฌธ์ž๋กœ ์ด์šฉ ๊ฐ€๋Šฅํ•˜๋ฉฐ, ํ‹ฐ์Šคํ† ๋ฆฌ ๊ธฐ๋ณธ ๋„๋ฉ”์ธ์—์„œ๋งŒ ๋™์ž‘ํ•ฉ๋‹ˆ๋‹ค.