diff --git a/Ukj0ng/202509/17 BOJ G5 Coins.md b/Ukj0ng/202509/17 BOJ G5 Coins.md new file mode 100644 index 00000000..f48e23d1 --- /dev/null +++ b/Ukj0ng/202509/17 BOJ G5 Coins.md @@ -0,0 +1,48 @@ +``` +import java.io.*; +import java.util.*; + +public class Main { + private static final BufferedReader br = new BufferedReader(new InputStreamReader(System.in)); + private static final BufferedWriter bw = new BufferedWriter(new OutputStreamWriter(System.out)); + private static int[] coins, dp; + private static int N, M; + + public static void main(String[] args) throws IOException { + int T = Integer.parseInt(br.readLine()); + + while (T-->0) { + init(); + DP(); + bw.write(dp[M] + "\n"); + } + bw.flush(); + bw.close(); + br.close(); + } + + private static void init() throws IOException { + N = Integer.parseInt(br.readLine()); + StringTokenizer st = new StringTokenizer(br.readLine()); + coins = new int[N]; + for (int i = 0; i < N; i++) { + coins[i] = Integer.parseInt(st.nextToken()); + } + + M = Integer.parseInt(br.readLine()); + dp = new int[M+1]; + + dp[0] = 1; + } + + private static void DP() { + for (int i = 0; i < N; i++) { + for (int j = 1; j <= M; j++) { + if (j - coins[i] >= 0 && dp[j - coins[i]] > 0) { + dp[j] += dp[j - coins[i]]; + } + } + } + } +} +```