From 226af0508878c92966d621cb4e456542c70b224c Mon Sep 17 00:00:00 2001
From: Sreehari0101 <109453037+Sreehari0101@users.noreply.github.com>
Date: Sat, 29 Oct 2022 00:49:25 +0530
Subject: [PATCH] non premptive sjf scheduling

---
 c/sjfscheduling.c | 61 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 61 insertions(+)
 create mode 100644 c/sjfscheduling.c

diff --git a/c/sjfscheduling.c b/c/sjfscheduling.c
new file mode 100644
index 0000000..81a0385
--- /dev/null
+++ b/c/sjfscheduling.c
@@ -0,0 +1,61 @@
+#include <stdio.h>
+int main()
+{   
+   int i,n,j,total_wt=0,total_tat=0,pos,temp;
+   float avg_wt,avg_tat;
+   int bt[10],proc[10],wt[10],tat[10];
+   
+	printf("Enter the no of processes:");
+	scanf("%d",&n);
+  for(i = 0;i<n;i++)
+  {
+	printf("\nEnter the burst time of process %d :",i+1);
+	scanf("%d",&bt[i]);
+	proc[i] = i+1;
+  }
+ 
+ for(i=0;i<n;i++)
+ {
+	 pos = i;
+	    for(j=i+1;j<n;j++)
+	    {
+			if(bt[j] < bt[pos])
+			{
+				pos = j;
+			}
+	     temp = bt[i];
+	     bt[i] = bt[pos];
+	     bt[pos] = temp;
+	       
+	     temp = proc[i];
+	     proc[i] = proc[pos];
+	     proc[pos] = temp;
+      }
+  }
+  wt[0] = 0;
+  for(i=0;i<n;i++)
+    {
+      wt[i+1] = wt[i] + bt[i];
+      total_wt = total_wt + wt[i];
+    }
+    
+    avg_wt = total_wt/n;
+    
+    for(i=0;i<n;i++)
+    {
+     tat[i] = wt[i]+bt[i];
+     total_tat = total_tat + tat[i];
+    }
+    avg_tat = total_tat/(float)n;
+  
+    printf("Processes \tBurst time \twaiting time \tTurn around time \n");
+    for(int i=0;i<n;i++)
+    {
+		printf("%d\t\t %d \t\t%d \t\t%d\n",proc[i],bt[i],wt[i],tat[i]);
+    }
+      printf("\nAverage waiting time : %f",avg_wt);
+      printf("\nAverage Turn around time : %f",avg_tat);
+    return 0;
+ }
+    
+