diff --git "a/zinnnn37/202510/3 BOJ G5 \353\217\231\354\240\204 2.md" "b/zinnnn37/202510/3 BOJ G5 \353\217\231\354\240\204 2.md" new file mode 100644 index 00000000..0637f64f --- /dev/null +++ "b/zinnnn37/202510/3 BOJ G5 \353\217\231\354\240\204 2.md" @@ -0,0 +1,54 @@ +```java +package etc; + +import java.io.*; +import java.util.Arrays; +import java.util.StringTokenizer; + +public class BJ_2294_동전_2 { + + private static final int INF = 987654321; + + private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + private static StringTokenizer st; + + private static int N, K; + private static int[] coins, dp; + + public static void main(String[] args) throws IOException { + init(); + sol(); + } + + private static void init() throws IOException { + st = new StringTokenizer(br.readLine()); + N = Integer.parseInt(st.nextToken()); + K = Integer.parseInt(st.nextToken()); + + coins = new int[N + 1]; + for (int i = 1; i <= N; i++) { + coins[i] = Integer.parseInt(br.readLine()); + } + + dp = new int[K + 1]; + Arrays.fill(dp, INF); + dp[0] = 0; + } + + private static void sol() throws IOException { + for (int i = 1; i <= K; i++) { + for (int coin : coins) { + if (i - coin >= 0 && dp[i - coin] != INF) { + dp[i] = Math.min(dp[i], dp[i - coin] + 1); + } + } + } + bw.write(dp[K] != INF ? (dp[K] + "") : "-1"); + bw.flush(); + bw.close(); + br.close(); + } + +} +``` \ No newline at end of file