diff --git "a/03do-new30/202502/11 BOJ G5 \354\260\275\354\230\201\354\235\264\354\231\200 \354\273\244\355\224\274.md" "b/03do-new30/202502/11 BOJ G5 \354\260\275\354\230\201\354\235\264\354\231\200 \354\273\244\355\224\274.md" new file mode 100644 index 00000000..a1b4935c --- /dev/null +++ "b/03do-new30/202502/11 BOJ G5 \354\260\275\354\230\201\354\235\264\354\231\200 \354\273\244\355\224\274.md" @@ -0,0 +1,58 @@ +```java +import java.io.*; +import java.util.*; + +public class Main { + public static void main(String[] args) throws IOException { + BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + + StringTokenizer st = new StringTokenizer(br.readLine()); + int N = Integer.parseInt(st.nextToken()); + int K = Integer.parseInt(st.nextToken()); + + int[] cups = new int[N+1]; + st = new StringTokenizer(br.readLine()); + for (int i = 1; i < N+1; i++) { + cups[i] = Integer.parseInt(st.nextToken()); + } + + // dp[i][j] = 카페인 i를 채우기 위해 커피 j까지 고려했을 때 최소 잔 수 + int[][] dp = new int[K+1][N+1]; + + // 초기화 + int maxCups = 101; + for (int i = 0; i < K+1; i++) { + for (int j = 0; j < N+1; j++) { + if (i == 0) { + dp[i][j] = 0; + continue; + } + dp[i][j] = maxCups; + } + } + + for (int caffeine = 1; caffeine < K+1; caffeine++) { + for (int coffee = 1; coffee < N+1; coffee++) { + // (default) coffee번째 커피를 마시지 않는다면, caffine을 채우기 위해 coffee-1번째 커피까지 고려했을 때의 최소값이 dp[caffeine][coffee]가 됨 + dp[caffeine][coffee] = dp[caffeine][coffee-1]; + // coffee번째 커피를 마시는 경우 + if (caffeine - cups[coffee] >= 0) { + dp[caffeine][coffee] = Integer.min(dp[caffeine][coffee], dp[caffeine-cups[coffee]][coffee-1] + 1); + } + } + } + + int answer = dp[K][N]; + if (answer == maxCups) { + answer = -1; + } + bw.write(answer + "\n"); + + br.close(); + bw.flush(); + bw.close(); + } +} + +```