[Week02] BOJ 1965: 상자넣기

weekly/week02/BOJ_1965_상자넣기/sukangpunch.java

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+import java.io.BufferedReader;
+import java.io.IOException;
+import java.io.InputStreamReader;
+
+// 상자 넣기
+// 알고리즘 종류 확인
+public class BOJ_1965 {
+
+    public static void main(String[] args) throws IOException {
+        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
+
+        int N = Integer.parseInt(br.readLine());
+
+        int [] arr = new int[N+1];
+        String [] s = br.readLine().split(" ");
+        int [] dp = new int[N+1];
+
+        for(int i=1; i<=N; i++){
+            arr[i] = Integer.parseInt(s[i-1]);
+            dp[i] = 1;
+        }
+
+        for(int i=2; i<=N; i++){
+            for(int j=1; j<i; j++){
+                if(arr[i] > arr[j]){
+                    dp[i] = Math.max(dp[j]+1, dp[i]);
+                }
+            }
+        }
+
+        int max = 0;
+        for(int i=1; i<=N; i++){
+            if(max < dp[i]){
+                max = dp[i];
+            }
+        }
+
+        System.out.println(max);
+    }
+}