first commit

J07008 - DÃY CON TĂNG DẦN.java

@@ -0,0 +1,30 @@
+import java.util.Scanner;
+import java.util.TreeSet;
+import java.io.IOException;
+import java.io.File;
+
+public class Main{
+    static void Try(int start, int num, String r, int[] a, int[] ans, int n, TreeSet<String> ts){
+        if(num > 1) ts.add(r);
+        if(num == n) return;
+        for(int i=start; i<n; i++){
+            if(num == 0){
+                ans[num] = a[i];
+            }else if(a[i] > ans[num-1]){
+                ans[num] = a[i];
+            }else continue;
+            Try(i+1, num+1, r + Integer.toString(a[i]) + " ", a, ans, n ,ts);
+        }
+    }
+
+    public static void main(String[] args) throws IOException {
+        Scanner sc = new Scanner(new File("DAYSO.in"));
+        TreeSet<String> ts = new TreeSet<>();
+        int n = sc.nextInt();
+        int [] a = new int[n];
+        int [] ans = new int[n];
+        for(int i=0; i<n; i++) a[i] = sc.nextInt();
+        Try(0, 0, "", a, ans, n, ts);
+        ts.forEach(s -> System.out.println(s));
+    }
+}