diff --git a/Depth-First Search/DepthFirstSearchIterative.swift b/Depth-First Search/DepthFirstSearchIterative.swift
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+++ b/Depth-First Search/DepthFirstSearchIterative.swift	
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+//
+//  DepthFirstIterative.swift
+//  DFS
+//
+//  Created by Yash Jivani on 29/05/21.
+//
+
+import Foundation
+
+func depthFirstSearchIterative(_ graph: Graph, source: Node) -> [String]{
+    var nodesExplored = [source.label]
+    
+    source.visited = true
+    
+    var stack : [Node] = []
+    
+    stack.append(source)
+    while(!stack.isEmpty){
+        
+        let top = stack.removeFirst()
+        
+        if(!top.visited){
+            nodesExplored.append(top.label) 
+            top.visited = true
+        }
+       
+        for edge in top.neighbors{
+            if(!edge.neighbor.visited){
+                stack.insert(edge.neighbor, at: 0)
+            }
+        }
+       
+    }
+    return nodesExplored
+}