adding the assignments

Signed-off-by: ncardozo <[email protected]>

recursion/assignments.oz

@@ -0,0 +1,36 @@
+%% 1. Write a function to calculate the sum of squares of a list
+
+%% 2. Take the following process and write an equivalent iterative process 
+fun {Exp X N}
+    if N == 0 then 1
+    else X * {Exp X N-1}
+    end
+end
+
+
+%% 3. Take the following process and write an equivalent iterative process
+fun {Title S}
+    case S of nil then ''''
+    [] X|nil then '''' 
+    [] X|Y|Xs then 
+        if X == ' ' then {Append {Upper Y} {Title Xs}}
+        else {Append {Upper X} Y|{Title Xs}}
+        end 
+    end
+end
+
+%% 4. Take the following process and write an equivalent iterative process 
+fun {Fact N}
+    if N == 0 then 1
+    else {Fact N-1} * N 
+    end
+end
+
+
+%% 5. Implement the lookup function in a search tree
+
+
+%% 6. Implement the insert function in a search tree
+
+%% 7. Implement the delete function in a search tree
+