Create 0947_Most_Stones_Removed_with_Same_Row_or_Column.cpp

0947_Most_Stones_Removed_with_Same_Row_or_Column.cpp

@@ -0,0 +1,55 @@
+// ███████╗  █████╗  ███╗   ██╗ ██████╗   █████╗  ██████╗  ██████╗  ██╗  ██╗
+// ██╔════╝ ██╔══██╗ ████╗  ██║ ██╔══██╗ ██╔══██╗ ██╔══██╗ ██╔══██╗ ██║  ██║
+// ███████╗ ███████║ ██╔██╗ ██║ ██║  ██║ ███████║ ██████╔╝ ██████╔╝ ███████║
+// ╚════██║ ██╔══██║ ██║╚██╗██║ ██║  ██║ ██╔══██║ ██╔═██╗  ██╔══██╗ ██╔══██║
+// ███████║ ██║  ██║ ██║ ╚████║ ██████╔╝ ██║  ██║ ██║  ██╗ ██████╔╝ ██║  ██║
+// ╚══════╝ ╚═╝  ╚═╝ ╚═╝  ╚═══╝ ╚═════╝  ╚═╝  ╚═╝ ╚═╝  ╚═╝ ╚═════╝  ╚═╝  ╚═╝
+#pragma GCC optimize("Ofast", "inline", "ffast-math", "unroll-loops","no-stack-protector")
+#pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native", "f16c")
+auto init = []() {
+    ios::sync_with_stdio(false);
+    cin.tie(nullptr);
+    cout.tie(nullptr);
+    return 'c';
+}();
+class Solution {
+public:
+    int removeStones(vector<vector<int>>& stones) {
+        int n = stones.size();
+        vector<int> parent(n, -1);
+        function<int(int)> find = [&](int u){
+            while(parent[u]>0){
+                u=parent[u];
+            }
+            return u;
+        };
+        function<void(int, int)> unions = [&](int a, int b){
+            int i = find(a);
+            int j = find(b);
+            if(i!=j){
+                if(parent[i] > parent[j]){
+                    parent[i]+= parent[j];
+                    parent[j] = i;
+                }
+                else{
+                    parent[j] += parent[i];
+                    parent[i]=j;
+                }
+            }
+        };
+        for(int i=0 ; i<n ; i++){
+            for(int j= i+1; j<n; j++){
+                if(stones[i][0]==stones[j][0] || stones[i][1]==stones[j][1]){
+                    unions(i,j);
+                }
+            }
+        }
+        int c=0;
+        for(int i=0; i<n; i++){
+            if(parent[i]<0){
+                c++;
+            }
+        }
+        return abs(n-c);
+    }
+};