diff --git a/contributors/Lab1.2(SJF).c b/contributors/Lab1.2(SJF).c
new file mode 100644
index 0000000000..016c9803b9
--- /dev/null
+++ b/contributors/Lab1.2(SJF).c
@@ -0,0 +1,54 @@
+#include<stdio.h>
+#include<conio.h>
+#include<string.h>
+void main()
+{
+    int bt[20],at[10],n,i,j,temp,st[10],ft[10],wt[10],ta[10];
+    int totwt=0,totta=0;
+    float awt,ata;
+    char pn[10][10],t[10];
+    printf("Enter the number of process: ");
+    scanf("%d",&n);
+    printf("Enter Process no.|Arrival time|Burst time:\n");
+    for(i=0; i<n; i++)
+    {
+        
+        scanf("%s%d%d",pn[i],&at[i],&bt[i]);
+    }
+    for(i=0; i<n; i++)
+        for(j=0; j<n; j++)
+        {
+            if(bt[i]<bt[j])
+            {
+                temp=at[i];
+                at[i]=at[j];
+                at[j]=temp;
+                temp=bt[i];
+                bt[i]=bt[j];
+                bt[j]=temp;
+                strcpy(t,pn[i]);
+                strcpy(pn[i],pn[j]);
+                strcpy(pn[j],t);
+            }
+        }
+    for(i=0; i<n; i++)
+    {
+        if(i==0)
+            st[i]=at[i];
+        else
+            st[i]=ft[i-1];
+        wt[i]=st[i]-at[i];
+        ft[i]=st[i]+bt[i];
+        ta[i]=ft[i]-at[i];
+        totwt+=wt[i];
+        totta+=ta[i];
+    }
+    awt=(float)totwt/n;
+    ata=(float)totta/n;
+    printf("\nPname\tArrivaltime\tExecutiontime\tWaitingtime\tTatime");
+    for(i=0; i<n; i++)
+        printf("\n%s\t%5d\t\t%5d\t\t%5d\t\t%5d",pn[i],at[i],bt[i],wt[i],ta[i]);
+    printf("\n\nAverage waiting time is:%f",awt);
+    printf("\nAverage turnaroundtime is:%f",ata);
+    getch();
+}
\ No newline at end of file