From 9415c7f0c79beaae068c9038326ce66d5ea3d910 Mon Sep 17 00:00:00 2001
From: Hizenberg <growlingraptor@gmail.com>
Date: Sun, 30 Jun 2024 17:18:26 +0530
Subject: [PATCH] dsu

---
 Graph Algorithm/dsu.cpp | 45 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 45 insertions(+)
 create mode 100644 Graph Algorithm/dsu.cpp

diff --git a/Graph Algorithm/dsu.cpp b/Graph Algorithm/dsu.cpp
new file mode 100644
index 0000000..d1e79f0
--- /dev/null
+++ b/Graph Algorithm/dsu.cpp	
@@ -0,0 +1,45 @@
+class dsu{
+	public:
+		vector<int> parent;
+		vector<int> size;
+
+		dsu(int sz){
+			parent.resize(sz);
+			size.resize(sz);
+
+			for(int i = 0 ; i < sz ; i++ )
+				parent[i] = i , size[i] = 1;
+		}
+
+		int find(int n){
+			if( parent[n] == n ) return n;
+
+			return parent[n] = find( parent[n] );
+		}
+
+		int find_iterative( int n ){
+			while( parent[n] != n ){
+				n = parent[n];
+			}
+			return n;
+		}
+
+		void unite(int a, int b){
+
+			int par_a = find(a);
+			int par_b = find(b);
+
+			if( par_a == par_b )
+				return;
+
+			if( size[par_a] < size[par_b] ) swap(par_a, par_b);
+
+			size[par_a] += size[par_b];
+
+			parent[par_b] = par_a;
+		}
+
+		bool isSame(int a , int b){
+			return find(a) == find(b);
+		}
+	};
\ No newline at end of file