Done!

Co-authored-by: sigonasr2 <sigonasr2@gmail.com>

input

@@ -1,41 +1,41 @@
-abacccaaaacccccccccccaaaaaacccccaaaaaaccccaaacccccccccccccccccccccccccccccccccccccccccccaaaaa
-abaaccaaaacccccccccccaaaaaaccccccaaaaaaaaaaaaaccccccccccccccccccccccccccccccccccccccccccaaaaa
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-abcccccccccccaaaaaaccaaaccacccccaaaaaaacccccccccccccccccccccccccciiiicccccccddddddccccccccccc
-abcccccccccccaaaaaaccaaaaaaaccccaaaaaacccccaacccccccaaaccccccccciiiiiiiicccdddddddddacaaccccc
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-abcccccccccccaaaaaaaaaaaaaacccccccaaacccaaaaaacccccaaaaccccccchhhipppppiiiijjjjjjjddddaaccccc
-abcccccccccccaaaaaaaaaaaaaaccccccccccccccaaaaaccccccaaaccccccchhhpppppppiijjjjjjjjjddeeaccccc
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-abacccccccccccccaaacaaaccccccccccccccccccccccccccccaaccccccchhhhoouuuuuuuqvvvvvqqqjkeeecccccc
-abaccccccccccccaaaaaacccccaaccccccccccccccccccccccaaaccccccchhhooouuuxxxuvvvvvvqqqkkeeecccccc
-abaccccccccccccaaaaaacccaaaaaaccccccccccccccccccaaaaaaaaccchhhhooouuxxxxuvyyyvvqqqkkeeecccccc
-abcccccccccccccaaaaacccaaaaaaaccccccccccccccccccaaaaaaaaccjjhooooouuxxxxyyyyyvvqqqkkeeecccccc
-abccccccccccccccaaaaaacaaaaaaaccccccccaaaccccccccaaaaaaccjjjooootuuuxxxxyyyyyvvqqkkkeeecccccc
-abccccccccccccccaaaaaaaaaaaaacccccccccaaaacccccccaaaaaacjjjooootttuxxxxxyyyyvvrrrkkkeeecccccc
-SbccccccccccccccccccaaaaaaaaacccccccccaaaacccccccaaaaaacjjjoootttxxxEzzzzyyvvvrrrkkkfffcccccc
-abcccccccccccaaacccccaaaaaaacaaaccccccaaaccccccccaaccaacjjjoootttxxxxxyyyyyyvvvrrkkkfffcccccc
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-abcccccccccaaaaaacccaaaaaaaaaaaaaaaccaaacaaacccccaacccccjjjnnnttttxxxxyyyyyyywwwrrkkkfffccccc
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-abcaaaaccccaaaaacccccccccaacaaaaaaccccaaaaaacccccaaaaacccjjjnnnnnttttwwywwwwwwwrrrrllfffccccc
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-abccccaacaaaaaaaaaaccccccccccccccccaaaccccccccaaaaaaccccccccccccchhhhhhhhhhhaaccccccccccccccc
-abccccaaaaaaaaaaaaaaccccccccccaaccaaaaccccccccaaaaaacccaaacccccccchhhhhhhhaaaaccccccccccccccc
-abcccaaaaaaaaaaaaaaaccccccccaaaaaacaaaacacaccccaaaccccaaaacccccccccchhhhccccaaccccccccccaaaca
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-abcccccaaaacccaaaccccccccccaaaaaaaaaaaaaaaaccccccccccccaaacccccccccccaaacccccccccccccccccaaaa
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+abccccccccccccccaaaaaaaaaaaaaccccdccccaaaacccccccaaaaaacjjjooootttuxxxxxyyyyvvrrrkkkeeecccccc
+SbccccccccccccccccccaaaaaaaaaccccdccccaaaacccccccaaaaaacjjjoootttxxxEzzzzyyvvvrrrkkkfffcccccc
+abcccccccccccaaacccccaaaaaaacaaacdccccaaaccccccccaaccaacjjjoootttxxxxxyyyyyyvvvrrkkkfffcccccc
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+abcaaaaccccaaaaacccccccccaacaaaaadccccaaaaaacccccaaaaacccjjjnnnnnttttwwywwwwwwwrrrrllfffccccc
+abaaaaaccccaaaaaccccccaaaaaccaaaadcaaaaaaaaccccaaaaaaccccjjjjinnnntttwwwwwsssrrrrrllllffccccc
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+abacaaaaccccccccccccccaaaaaacaaccdcaaaaaaaaaaccccaaaaaaccccciiiinnnssswwsssssllllllllfffccccc
+abccaaccccccccccccccccaaaaaacccccdccccaaacaaaccccaaccaacccccciiiinnsssssssmmllllllllfffaacccc
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+abccccccccccaaaaaacccccccccccccccdccaacccccccccaaaaacccccccccccciiimmmmmmmhhggggcaaaaaaaccccc
+abccccccccccaaaaaacccccccccccccccdcaacccccccccaaaaaacccccccccccciihhmmmmhhhhgccccccccaacccccc
+abccccaacaaaaaaaaaaccccccccccccccdcaaaccccccccaaaaaaccccccccccccchhhhhhhhhhhaaccccccccccccccc
+abccccaaaaaaaaaaaaaaccccccccccaacdaaaaccccccccaaaaaacccaaacccccccchhhhhhhhaaaaccccccccccccccc
+abcccaaaaaaaaaaaaaaaccccccccaaaaadcaaaacacaccccaaaccccaaaacccccccccchhhhccccaaccccccccccaaaca
+abcccaaaaaacacaaacccccccccccaaaaadaaaaaaaaacccccccccccaaaacccccccccccaaaccccccccccccccccaaaaa
+abcccccaaaacccaaaccccccccccaaaaaadaaaaaaaaaccccccccccccaaacccccccccccaaacccccccccccccccccaaaa
+abcccccaacccccaacccccccccccaaaaaadaaaaaaccccccccccccccccccccccccccccccccccccccccccccccccaaaaa

main.cpp

@@ -32,8 +32,9 @@ struct node{
 vi2d playerPos={0,0};
 vi2d endingPos={0,0};
 std::vector<std::vector<node>>grid;
+std::vector<node*>possibleStartingLocs;
 node*startNode;
-node*endNode;
+node *endNode;
 
 int main()
 {
@@ -61,6 +62,9 @@ int main()
         for (int x=0;x<grid[y].size();x++){
             std::cout<<grid[y][x].getElevation();
             grid[y][x].pos={x,y};
+            if (grid[y][x].getElevation()=='a'){
+                possibleStartingLocs.push_back(&grid[y][x]);
+            }
             if (x>0&&grid[y][x-1].getElevation()-1<=grid[y][x].getElevation()){
                 grid[y][x].connections.push_back(&grid[y][x-1]);
             }
@@ -75,19 +79,32 @@ int main()
             }
             if (x==playerPos.x&&y==playerPos.y){
                 startNode=&grid[y][x];
-                std::cout<<"Starting node set."<<std::endl;
+                //std::cout<<"Starting node set."<<std::endl;
             }
             if (x==endingPos.x&&y==endingPos.y){
-                endNode=&grid[y][x];
-                std::cout<<"Ending node set."<<std::endl;
+              endNode = &grid[y][x];
+              //std::cout << "Ending node set." << std::endl;
             }
         }
         std::cout<<std::endl;
     }
 
+    int bestPath=INFINITY;
+    node*testNode;
+    for (int l=0;l<possibleStartingLocs.size();l++){
+        testNode=possibleStartingLocs[l];
+        //std::cout<<"Checking location: "<<testNode->pos<<std::endl;
+        for (int y=0;y<grid.size();y++){
+            for (int x=0;x<grid[y].size();x++){
+                node&n=grid[y][x];
+                n.visited=false;
+                n.myDist=INFINITY;
+                n.parent=nullptr;
+            }
+        }
         std::vector<node*>searchNodes;
-    searchNodes.push_back(startNode);
-    startNode->myDist=0.0f;
+        searchNodes.push_back(testNode);
+        testNode->myDist=0.0f;
         while (searchNodes.size()>0){
             node*currentNode=searchNodes.front();
             if (currentNode->visited){
@@ -107,15 +124,25 @@ int main()
                 }
             }
         }
-
-    node*searchNode=endNode;
+        node *searchNode = endNode;
+        bool completed=false;
         int jumps=0;
-    while (searchNode!=startNode){
-        std::cout<<"Node goes from "<<searchNode->pos<<" to "<<searchNode->parent->pos<<std::endl;
+        while (searchNode!=testNode){
+            if (searchNode->parent!=nullptr){
+                //std::cout<<"Node goes from "<<searchNode->pos<<" to "<<searchNode->parent->pos<<std::endl;
                 jumps++;
                 searchNode=searchNode->parent;
+            }else{
+                break;
+            }
+        }
+        if (searchNode==testNode){
+            if (jumps<bestPath){
+                std::cout<<"New Shortest path is "<<jumps<<" hops"<<std::endl;
+                bestPath=jumps;
+            }
+        }
     }
-    std::cout<<"Shortest path is "<<jumps<<" hops"<<std::endl;
 
 	return 0;
 }