Merge pull request #18 from solid-connection/JAEHEE25

[Week02] BOJ: 상자넣기

Author: JAEHEE25

weekly/week02/BOJ_1965_상자넣기/JAEHEE25.java

@@ -0,0 +1,34 @@
+package week02.BOJ_1965_상자넣기;
+
+import java.util.*;
+import java.lang.*;
+import java.io.*;
+
+class BOJ1965 {
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+        int N = Integer.parseInt(br.readLine());
+        StringTokenizer st = new StringTokenizer(br.readLine());
+        int[] arr = new int[N];
+        for (int i = 0; i < N; i++) {
+            arr[i] = Integer.parseInt(st.nextToken());
+        }
+
+        int[] dp = new int[N]; //dp[인덱스] = 최대 수열의 길이
+        Arrays.fill(dp, 1);
+
+        for (int i = 0; i < N; i++) {
+            for (int j = 0; j < i; j++) {
+                if (arr[j] < arr[i]) {
+                    dp[i] = Math.max(dp[i], dp[j] + 1);
+                }
+            }
+        }
+
+        int answer = 0;
+        for (int i : dp) {
+            answer = Math.max(answer, i);
+        }
+        System.out.println(answer);
+    }
+}