added till a1q3.java

Semester 2 (DSA)/assignment 1/a1q1.java

@@ -0,0 +1,25 @@
+import java.util.*;
+class a1q1
+{
+    public static void main(String args[])
+    {
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter the Value of a: ");
+        int a=in.nextInt();
+        System.out.print("Enter the value of b: ");
+        int b=in.nextInt();
+        System.out.print("Enter the value of c: ");
+        int c=in.nextInt();
+        boolean k=false;
+        if(a+b==c || a==b-c || a*b==c)
+            k=true;
+        if(k)
+        {
+            System.out.print(a+", "+b+", "+c+" can be used in an arithmatic formula");
+        }
+        else
+        {
+            System.out.print(a+", "+b+", "+c+" cannot be used in an arithmatic formula");
+        }
+    }
+}

Semester 2 (DSA)/assignment 1/a1q2.java

@@ -0,0 +1,13 @@
+import java.util.*;
+class a1q2
+{
+    public static void main(String args[])
+    {
+        Scanner in = new Scanner(System.in);
+        System.out.print("Enter the Number : ");
+        int n=in.nextInt();
+        double t1=Math.log(n), t2=Math.log(2);
+        int ans=(int)(t1/t2);
+        System.out.print(n+" must be divided by two "+ans+" times to get a value less than 2");
+    }
+}

Semester 2 (DSA)/assignment 1/a1q3.java

@@ -0,0 +1,48 @@
+import java.util.*;
+class a1q3
+{
+    public static void main(String args[])
+    {
+        Scanner in = new Scanner(System.in);
+        char ch[] = {'a','r','b','o','n'};
+        a1q3 ob = new a1q3();
+        int i=1;
+        for(int a=0; a<5; a++)
+        {
+            for(int b=0; b<5; b++)
+            {
+                for(int c=0; c<5; c++)
+                {
+                    for(int d=0; d<5; d++)
+                    {
+                        for(int e=0; e<5; e++)
+                        {
+                            String s=""+ch[a]+ch[b]+ch[c]+ch[d]+ch[e];
+                            if(ob.check(s))
+                            {
+                                System.out.println(i+") "+s);
+                                i++;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+    public boolean check(String s)
+    {
+        boolean k=true;
+        for(int a=0; a<s.length()-1; a++)
+        {
+            for(int b=a+1; b<s.length(); b++)
+            {
+                if(s.charAt(a)==s.charAt(b))
+                {
+                    k=false;
+                    break;
+                }
+            }
+        }
+        return k;
+    }
+}