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Dynamic Programming/TaskCosts.java

@@ -0,0 +1,118 @@
+package projectb;
+
+import java.io.File;
+import java.io.FileNotFoundException;
+import java.util.Scanner;
+
+/**
+ *
+ * @author dimig
+ */
+public class TaskCosts {
+    
+    private Scanner scanner;
+    private File file;
+    
+    private int tasks;
+    private int vms;
+    
+    private int[][] vmsPer;
+    private int[][] vmsCom;
+    private int[][] costs;
+    
+    
+    private TaskCosts(String nameOfInputFile) throws FileNotFoundException{
+        File file = new File(nameOfInputFile);
+        scanner = new Scanner(file);
+        tasks = scanner.nextInt();
+        vms = scanner.nextInt();
+        costs = new int[tasks][vms];
+        vmsPer = new int[tasks][vms];
+        vmsCom = new int[vms][vms];
+        for(int i=0;i<tasks;i++){
+            for(int j=0;j<vms;j++){
+                vmsPer[i][j]=scanner.nextInt();
+            }
+        }
+        for(int i=0;i<vms;i++){
+            for(int j=0;j<vms;j++){
+                vmsCom[i][j] = scanner.nextInt();
+            }
+        }
+        for(int i=0;i<vms;i++){
+            costs[0][i]=vmsPer[0][i];
+        }
+        for(int i=1;i<tasks;i++){
+            for(int j=0;j<vms;j++){
+                costs[i][j]=0;
+            }
+        }
+    }
+    
+   
+    public int getTasks(){
+        return tasks;
+    }
+    
+    
+    public int findMin(int[] table){
+        int min=table[0];
+        for(int i=1;i<vms;i++){
+            if(table[i]<min){
+                min = table[i];
+            }
+        }
+        return min;
+    }
+    
+    
+    public boolean lineContainsZero(int line){
+        for(int i=0;i<vms;i++){
+            if(costs[line][i]==0){
+                return true;
+            }
+        }
+        return false;
+    }
+    
+    
+    public void produceCost(int line){
+        if(line<tasks){
+            if(line-1==0 || !lineContainsZero(line-1)){
+                int[] table = new int[vms];
+                for(int i=0;i<vms;i++){
+                    for(int j=0;j<vms;j++){
+                        table[j]=costs[line-1][j] + vmsPer[line][i] + vmsCom[i][j];
+                    }
+                    int min = findMin(table);
+                    costs[line][i]=min;
+                }
+                produceCost(line+1);
+            }
+            else{
+                produceCost(line-1);
+            }
+        }
+    }
+    
+    
+    public void printCost(){
+        for(int i=0;i<tasks;i++){
+            for(int j=0;j<vms;j++){
+                System.out.print(costs[i][j]+"  ");
+            }
+            System.out.println();
+        }
+    }
+    
+    
+    public static void main(String[] args) throws FileNotFoundException {
+        if (args.length != 1){
+            System.out.println("Insert the input file");
+            return;
+	}
+        TaskCosts obj = new TaskCosts(args[0]);
+        obj.produceCost(obj.getTasks()-1);
+        obj.printCost();
+    }
+}