Merge pull request #393 from sifa123/patch-1

Create multilevel queue scheduling.py

Python/multilevel queue scheduling.py

@@ -0,0 +1,33 @@
+n = int(input("Enter the number of processes : "))
+#print(n)
+p = [0] * n
+bt = [0] * n
+wt = [0] * n
+tat = [0] * n
+su = [0] * n
+for i in range(n):
+    p[i] = i+1
+    bt[i] = int(input("Enter the burst time for process " + str(i+1) + ": "))
+    su[i] = int(input("System/User process (0/1) ? "))
+
+for i in range(n):
+    for j in range(i+1, n):
+        if su[i] > su[j]:
+            p[i], p[j] = p[j], p[i]
+            bt[i], bt[j] = bt[j], bt[i]
+            su[i], su[j] = su[j], su[i]
+
+wtavg = 0
+tatavg = 0
+
+for i in range(1, n):
+    wt[i] = wt[i-1] + bt[i-1]
+    tat[i] = tat[i-1] + bt[i]
+    wtavg += wt[i]
+    tatavg += tat[i]
+
+print("PROCESS\tSYSTEM/USER PROCESS\tBURST TIME\tWAITING TIME\tTURNAROUND TIME\n")
+
+for i in range(n):
+    print(str(p[i]) + "\t\t" + str(su[i]) + "\t\t" + str(bt[i]) + "\t\t" + str(wt[i]) + "\t\t" + str(tat[i]))
+