From 6ae18dd181880ad1ffcd3523824ca31ad4654dfb Mon Sep 17 00:00:00 2001
From: Aayush Vyas <70998175+AayushVyasKIIT@users.noreply.github.com>
Date: Mon, 30 Aug 2021 16:16:39 +0530
Subject: [PATCH] Delete dsu_path_compresssion.cpp

---
 data_structures/dsu_path_compresssion.cpp | 124 ----------------------
 1 file changed, 124 deletions(-)
 delete mode 100644 data_structures/dsu_path_compresssion.cpp

diff --git a/data_structures/dsu_path_compresssion.cpp b/data_structures/dsu_path_compresssion.cpp
deleted file mode 100644
index ad8bc231c..000000000
--- a/data_structures/dsu_path_compresssion.cpp
+++ /dev/null
@@ -1,124 +0,0 @@
-#include <iostream>
-#include <vector>
-
-using namespace std;
-
-//Disjoint set union 
-class DSU{
-    private:
-        // p: keeps track of parent of i
-        // depth: tracks the depth of i
-        // setSize: size of each chunk(set)
-        // maxElement : max of each set, using maxElement[representative]
-        // minElement : min of each set, using minElement[representative]
-        vector<int> p,depth,setSize,maxElement,minElement;
-    public:
-        // parameter : int n -> maximum number of items
-        DSU(int n){
-            p.assign(n,0);
-            //initially all of them are their own parents.
-            for(int i=0;i<n;i++){
-                p[i] = i;
-            }
-            //initially all have depth =0
-            depth.assign(n,0);
-            maxElement.assign(n,0);
-            minElement.assign(n,0);
-            for(int i=0;i<n;i++){
-                depth[i] = 0;
-                maxElement[i] = i;
-                minElement[i] = i;
-            }
-            setSize.assign(n,0);
-            //initially set size will be 1
-            for(int i=0;i<n;i++){
-                setSize[i]=1;
-            }
-        }
-
-        //returns the leader/representative of the set
-        int findSet(int i){
-            if(p[i]==i){
-                return i;
-            }
-            //path compression i -> root(representative)
-            return (p[i] = findSet(p[i]));
-        }
-        //union of 2 sets
-        void UnionSet(int i,int j){
-            //check if both belongs to same set or not
-            if(isSame(i,j)){
-                return;
-            }
-
-            //we find the representative of the i and j
-            int x = findSet(i);
-            int y = findSet(j);
-
-            //always keeping the min as x
-            //shallow tree
-            if(depth[x]>depth[y]){
-                swap(x,y);
-            }
-            //making the shallower root's parent the deeper root
-            p[x] = y;
-            
-            //if same depth then increase one's depth
-            if(depth[x] == depth[y]){
-                depth[y]++;
-            }
-            //total size of the resultant set.  
-            setSize[y] += setSize[x];
-            //changing the maximum elements
-            maxElement[y] = max(maxElement[x],maxElement[y]);
-            minElement[y] = min(minElement[x],minElement[y]);
-        }
-        //checks if both belongs to same set
-        bool isSame(int i,int j){
-            if(findSet(i) == findSet(j)){
-                return true;
-            }
-            return false;
-        }
-        //returns min max size of i's set
-        void get(int i){
-            cout << "min:" << get_min(i) << " max:" << get_max(i) << " size of set:" <<size(i) << endl; 
-        }
-        //number of elements of each set
-        int size(int i){
-            return setSize[findSet(i)];
-        }
-        //returns max of the set whose part is i
-        int get_max(int i){
-            return maxElement[findSet(i)];
-        }
-        //returns min of the set whose part is i
-        int get_min(int i){
-            return minElement[findSet(i)];
-        }
-
-};
-
-//T(n) = O(n)
-int main(){
-    int n;
-    n = 10;
-    //n: number of items
-    DSU d(n+1);
-    //set 1
-    cout << "set 1:"<<endl;
-    d.UnionSet(1,2); //performs union operation on 1 and 2
-    d.UnionSet(1,4);
-    cout << "Representative of "<< 4 << " is "<< d.findSet(4) << endl; //find the representative of the set which 4 belongs to.
-    d.get(4); //print min max and size of set.
-
-    //set 2
-    cout << "\nset 2"<<endl;
-    d.UnionSet(3,5);
-    d.UnionSet(5,6);
-    d.UnionSet(5,7);
-    cout << "Representative of " << 7 <<" is " << d.findSet(7) << endl;
-    d.get(3);
-    
-    
-}