BOJ_1495 : 기타리스트

Author: spring0913

week6/BOJ_1495(기타리스트).java

@@ -0,0 +1,41 @@
+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));
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int N = Integer.parseInt(st.nextToken());
+        int S = Integer.parseInt(st.nextToken());
+        int M = Integer.parseInt(st.nextToken());
+        int[] volume = new int[N + 1];
+        st = new StringTokenizer(br.readLine());
+        for (int i = 1; i <= N; i++) {
+            volume[i] = Integer.parseInt(st.nextToken());
+        }
+        boolean[][] d = new boolean[N + 1][M + 1];
+        d[0][S] = true;
+        for (int i = 1; i <= N; i++) {
+            for (int vol = 0; vol <= M; vol++) {
+                // 이전에 곡에서 연주 가능한 볼륨일 경우
+                if (d[i - 1][vol]) {
+                    if (vol + volume[i] <= M) {
+                        d[i][vol + volume[i]] = true;
+                    }
+                    if (vol - volume[i] >= 0) {
+                        d[i][vol - volume[i]] = true;
+                    }
+                }
+            }
+        }
+        int answer = -1;
+        for (int i = M; i >= 0; i--) {
+            if (d[N][i]) {
+                answer = i;
+                break;
+            }
+        }
+        System.out.println(answer);
+    }
+}