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

๋ฐฑ์ค€ 2869๋ฒˆ : ๋‹ฌํŒฝ์ด๋Š” ์˜ฌ๋ผ๊ฐ€๊ณ  ์‹ถ๋‹ค (JAVA) ๋ฌธ์ œ ํ’€์ด

2020. 10. 21. 11:34
๋ชฉ์ฐจ
  1. ๋‹ฌํŒฝ์ด๋Š” ์˜ฌ๋ผ๊ฐ€๊ณ  ์‹ถ๋‹ค
  2. ๋ฌธ์ œ
  3. ์ž…๋ ฅ
  4. ์ถœ๋ ฅ
  5. ์˜ˆ์ œ ์ž…๋ ฅ 1            ์˜ˆ์ œ ์ถœ๋ ฅ 1
  6. ๋‚˜์˜ ํ’€์ด
๋ฐ˜์‘ํ˜•

๋‹ฌํŒฝ์ด๋Š” ์˜ฌ๋ผ๊ฐ€๊ณ  ์‹ถ๋‹ค

์‹œ๊ฐ„์ œํ•œ ๋ฉ”๋ชจ๋ฆฌ ์ œํ•œ ์ œ์ถœ ์ •๋‹ต ๋งž์€ ์‚ฌ๋žŒ ์ •๋‹ต ๋น„์œจ
0.15 ์ดˆ
(์ถ”๊ฐ€ ์‹œ๊ฐ„ ์—†์Œ)
128 MB 66018 15786 13379 25.973%

๋ฌธ์ œ

๋•… ์œ„์— ๋‹ฌํŒฝ์ด๊ฐ€ ์žˆ๋‹ค. ์ด ๋‹ฌํŒฝ์ด๋Š” ๋†’์ด๊ฐ€ V๋ฏธํ„ฐ์ธ ๋‚˜๋ฌด ๋ง‰๋Œ€๋ฅผ ์˜ฌ๋ผ๊ฐˆ ๊ฒƒ์ด๋‹ค.

๋‹ฌํŒฝ์ด๋Š” ๋‚ฎ์— A๋ฏธํ„ฐ ์˜ฌ๋ผ๊ฐˆ ์ˆ˜ ์žˆ๋‹ค. ํ•˜์ง€๋งŒ, ๋ฐค์— ์ž ์„ ์ž๋Š” ๋™์•ˆ B๋ฏธํ„ฐ ๋ฏธ๋„๋Ÿฌ์ง„๋‹ค. ๋˜, ์ •์ƒ์— ์˜ฌ๋ผ๊ฐ„ ํ›„์—๋Š” ๋ฏธ๋„๋Ÿฌ์ง€์ง€ ์•Š๋Š”๋‹ค.

๋‹ฌํŒฝ์ด๊ฐ€ ๋‚˜๋ฌด ๋ง‰๋Œ€๋ฅผ ๋ชจ๋‘ ์˜ฌ๋ผ๊ฐ€๋ ค๋ฉด, ๋ฉฐ์น ์ด ๊ฑธ๋ฆฌ๋Š”์ง€ ๊ตฌํ•˜๋Š” ํ”„๋กœ๊ทธ๋žจ์„ ์ž‘์„ฑํ•˜์‹œ์˜ค.

์ž…๋ ฅ

์ฒซ์งธ ์ค„์— ์„ธ ์ •์ˆ˜ A, B, V๊ฐ€ ๊ณต๋ฐฑ์œผ๋กœ ๊ตฌ๋ถ„๋˜์–ด์„œ ์ฃผ์–ด์ง„๋‹ค. (1 โ‰ค B < A โ‰ค V โ‰ค 1,000,000,000)

์ถœ๋ ฅ

์ฒซ์งธ ์ค„์— ๋‹ฌํŒฝ์ด๊ฐ€ ๋‚˜๋ฌด ๋ง‰๋Œ€๋ฅผ ๋ชจ๋‘ ์˜ฌ๋ผ๊ฐ€๋Š”๋ฐ ๋ฉฐ์น ์ด ๊ฑธ๋ฆฌ๋Š”์ง€ ์ถœ๋ ฅํ•œ๋‹ค.

์˜ˆ์ œ ์ž…๋ ฅ 1            ์˜ˆ์ œ ์ถœ๋ ฅ 1

2 1 5                                     4

 

์ฒ˜์Œ์— while๋ฌธ์œผ๋กœ ๋‚ฎ์— ์˜ฌ๋ผ๊ฐ€๊ณ , ๋ฐค์— ๋ฏธ๋„๋Ÿฌ์ง€๋Š” ๊ฑฐ๋ฆฌ๋ฅผ ๊ณ„์‚ฐํ–ˆ๋”๋‹ˆ ์‹œ๊ฐ„์ดˆ๊ณผ๋กœ ํ‹€๋ ธ์—ˆ๋‹ค.

ํ•˜๋ฃจ๋ฅผ ๊ณ ๋ฏผํ•˜๋‹ค๊ฐ€ ๊ฒฐ๊ตญ ํ’€์ด๋ฅผ ๋ดค๋Š”๋ฐ ์ด๋Ÿฐ ๋ฐฉ๋ฒ•๋„ ์žˆ๊ตฌ๋‚˜.... ์•Œ๊ณ ๋ฆฌ์ฆ˜ ๋จธ๋ฆฌ๋Š” ์™ค์ผ€ ์ข‹์•„์ง€์ง€ ์•Š๋Š”๊ฒƒ ๊ฐ™์ง€....... ์Šฌํ”„๋‹ค

 

๋‚˜์˜ ํ’€์ด

import java.io.*;
import java.util.StringTokenizer;

public class Snail_Wanna_Climb {
    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 = new StringTokenizer(bf.readLine());

        int A = Integer.parseInt(st.nextToken());
        int B = Integer.parseInt(st.nextToken());
        int V = Integer.parseInt(st.nextToken());

        V -= A; // ์ฒซ๋‚  ๊ฐ’ ๋ฏธ๋ฆฌ ๊ตฌํ•ด์ฃผ๊ธฐ.
        int up = A - B; // ์‹ค์ œ ์˜ฌ๋ผ๊ฐ€๋Š” ๊ฐ’
        int day = V / up;
        if (V % up != 0) {
            day++;
        }
        bw.write(day + 1 + "");

        // resource manage
        bw.flush();
        bw.close();
    }
}
๋ฐ˜์‘ํ˜•
์ €์ž‘์žํ‘œ์‹œ (์ƒˆ์ฐฝ์—ด๋ฆผ)
  1. ๋‹ฌํŒฝ์ด๋Š” ์˜ฌ๋ผ๊ฐ€๊ณ  ์‹ถ๋‹ค
  2. ๋ฌธ์ œ
  3. ์ž…๋ ฅ
  4. ์ถœ๋ ฅ
  5. ์˜ˆ์ œ ์ž…๋ ฅ 1            ์˜ˆ์ œ ์ถœ๋ ฅ 1
  6. ๋‚˜์˜ ํ’€์ด
'๐Ÿ“œ ์ฝ”๋”ฉํ…Œ์ŠคํŠธ/BAEKJOON\์ˆ˜ํ•™ 1, ์ˆ˜ํ•™ 2' ์นดํ…Œ๊ณ ๋ฆฌ์˜ ๋‹ค๋ฅธ ๊ธ€
  • ๋ฐฑ์ค€ 3009๋ฒˆ : ๋„ค ๋ฒˆ์งธ ์  (JAVA) ๋ฌธ์ œ ํ’€์ด
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  • ๋ฐฑ์ค€ 2292๋ฒˆ : ๋ฒŒ์ง‘ (JAVA) ๋ฌธ์ œ ํ’€์ด
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