From b19011ed8b2c6470863823ea354d48b9ed8df94b Mon Sep 17 00:00:00 2001
From: lnd212 <lonando212@yandex.ru>
Date: Mon, 15 Nov 2021 21:22:16 +0400
Subject: [PATCH] =?UTF-8?q?=D0=90=D0=BB=D0=B3=D0=BE=D1=80=D0=B8=D1=82?=
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---
 cmd/bin/graphs0.dart   | 11 +++++--
 cmd/bin/src/graph.dart | 69 +++++++++++++++++++++++++++++-------------
 2 files changed, 56 insertions(+), 24 deletions(-)

diff --git a/cmd/bin/graphs0.dart b/cmd/bin/graphs0.dart
index 9db16f1..a536bf9 100644
--- a/cmd/bin/graphs0.dart
+++ b/cmd/bin/graphs0.dart
@@ -34,7 +34,7 @@ void main(List<String> arguments) {
 
   print(x2.bfsPath(1, 3));
 */
-  var x1 = Graphs("Gt", false, true);
+  /*var x1 = Graphs("Gt", false, true);
   x1.addIsolated("T1");
   x1.addIsolated("T2");
   x1.addIsolated("T3");
@@ -42,8 +42,13 @@ void main(List<String> arguments) {
   x1.addPath(1, 3, 1);
   x1.addPath(3, 2, 5);
   x1.addPath(2, 4, 10);
-  x1.printG();
-  print(x1.getLongestPath());
+  x1.printG();*/
+  var x1 = Graphs.fromFile("star.txt");
+  for (var i in x1.getSortedPathList()) {
+    print("${i.l} ${i.d} ${i.p}");
+  }
+  x1.kruskal()!.printG();
+  //print(x1.getSortedPathList());
   //print(x1.bfsPath(1, 4));
   //print(x1.dfsIterative(1));
   //print(x1.dijkstra(2));
diff --git a/cmd/bin/src/graph.dart b/cmd/bin/src/graph.dart
index 3abb457..f4089be 100644
--- a/cmd/bin/src/graph.dart
+++ b/cmd/bin/src/graph.dart
@@ -432,6 +432,24 @@ class Graphs {
     return res;
   }
 
+  List<LenDotPath> getSortedPathList() {
+    int max = -1;
+    int inD = -1;
+    int out = -1;
+    List<LenDotPath> result = <LenDotPath>[];
+    for (int i = 0; i < _amount; i++) {
+      var lens = _dots[i].getL();
+      for (var d in lens.keys) {
+        max = lens[d]!;
+        inD = i + 1;
+        out = d;
+        result.add(LenDotPath(max, inD, out));
+      }
+    }
+    result.sort((a, b) => a.l.compareTo(b.l));
+    return result;
+  }
+
   /*List<Dot> getNoRepeatDots() {
     List<Dot> ret = <Dot>[];
     for (int i = 0; i < _amount; i++) {
@@ -744,36 +762,45 @@ class Graphs {
       }
     }
   }
-  /*Graphs? kruskal() {
-    int m;
-    List<pair<int,pair<int,int>>> g (m); // вес - вершина 1 - вершина 2
 
+  Graphs? kruskal() {
+    //List<pair<int,pair<int,int>>> g (m); // вес - вершина 1 - вершина 2
+    List<LenDotPath> g = getSortedPathList();
+    // ignore: unused_local_variable
     int cost = 0;
     List<Dot> res = <Dot>[];
-    for (int i = 0;i<_amount;i++){
+    for (int i = 0; i < _amount; i++) {
       res.add(Dot(_dots[i].getName()));
     }
-  
-    sort (g.begin(), g.end());
     List<int> treeId = List<int>.filled(_amount, 0);
-    for (int i=0; i<_amount; ++i){
-	    treeId[i] = i;
+    for (int i = 0; i < _amount; ++i) {
+      treeId[i] = i;
     }
-    for (int i=0; i<_amount; ++i)
-    {
-	    int a = g[i].second.first,  b = g[i].second.second,  l = g[i].first;
-	    if (treeId[a] != treeId[b])
-	     {
-		    cost += l;
-		    res.add (make_pair (a, b));
-		    int oldId = treeId[b],  newId = treeId[a];
-		    for (int j=0; j<_amount; ++j){
-			    if (treeId[j] == oldId){
-				    treeId[j] = newId; 
+    for (int i = 0; i < g.length; ++i) {
+      int a = g[i].d, b = g[i].p, l = g[i].l;
+      if (treeId[a - 1] != treeId[b - 1]) {
+        cost += l;
+        res[i].addPath(a, b);
+        int oldId = treeId[b - 1], newId = treeId[a];
+        for (int j = 0; j < _amount; ++j) {
+          if (treeId[j] == oldId) {
+            treeId[j] = newId;
           }
         }
-	    }
+      }
     }
-  }*/
+    return Graphs.fromList(_name, res, _useLength, _oriented);
+  }
   //************Алгоритмы************
 }
+
+class LenDotPath {
+  late int l;
+  late int d;
+  late int p;
+  LenDotPath(int len, dot, path) {
+    l = len;
+    d = dot;
+    p = path;
+  }
+}