initial commit

filetemplate.c

 #include<stdio.h>
+#include<stdlib.h>
 #include<string.h>
 struct data
 {
     int register_no;
     char name[10];
     char department[10];
-    float avg;
-}save[5];
+    float average;
+}save[4];       //Struct variable declaration
+
+int i;          // declare a global variable
+int Department_name();     // function declaration
 
 int main()
 {
-    int i;
-    FILE *fp = fopen("filetemplate.txt","r");
-    while (fscanf(fp,"%d %s %s %f",&save->register_no,save->name,save->department,&save->avg) != EOF)
+    int no_rec;     //Storing a No.of record 
+    char ch;        // character to print the file char by char          
+    FILE *fp = fopen("filetemplate.txt","r+");  //Open the file with reading and write
+    while (fp!=NULL)
+    {
+        ch = fgetc(fp);
+        if (ch!=EOF)
+        {
+            printf("%c",ch);
+        }
+        else
+            break;
+    }
+    printf("%s","\n\n");
+    rewind(fp);     // fseek(fp,SEEK_SET,0);
+    fscanf(fp,"%d",&no_rec);
+    for (i = 1; i <= 4; i++)
     {
-        printf("%s\n",save->name);   
+        fscanf(fp,"%d %s %s %f",&save[i].register_no,save[i].name,save[i].department,&save[i].average);
     }
-    printf("%s",save->department);
+    Department_name(save,no_rec);
+    fclose(fp);
     return 0;
 }
+
+int Department_name(struct data *save,int no_rec)
+{
+    char inp[3];
+    int CSE_count=0,IT_count=0,avg=0,avg2=0; 
+    for (i = 1; i <=no_rec; i++)        //count and store the data in the count variable 
+    {
+        if (!(strcmp(save[i].department,"CSE")))
+        {
+            CSE_count+=1;
+        }
+        else if (!(strcmp(save[i].department,"IT")))
+        {
+            IT_count+=1;
+        }
+    }
+    printf("CSE Department records : %d\n",CSE_count); //print the CSE department data separately
+    for (i = 1; i <= 4; i++)
+    {
+        if (!(strcmp(save[i].department,"CSE")))        // conditional check to find out CSE or Not
+        {
+            printf("%d\t%s\t%s\t%.2f\n",save[i].register_no,save[i].name,save[i].department,save[i].average);
+        }
+    }
+    printf("IT Department records : %d\n",IT_count); //print the IT department data separately
+    for ( i = 1; i <= 4; i++)
+    {
+        if (!(strcmp(save[i].department,"IT")))        // conditional check to find out CSE or Not
+        {
+            printf("%d\t%s\t%s\t%.2f\n",save[i].register_no,save[i].name,save[i].department,save[i].average);
+        }
+    }
+    printf("Enter the department name :");
+    scanf("%s",inp);
+    for (i = 1; i <= 4; i++)
+    {
+        if (!(strcmp(inp,save[i].department)))
+        {
+            if (avg<save[i].average)
+            {
+                avg=save[i].average;
+                avg2=i;
+            }
+        }
+    }
+    printf("High Avg Scored by\n");
+    printf("%d\t%s\t%s\t%.2f\n",save[avg2].register_no,save[avg2].name,save[avg2].department,save[avg2].average);
+}

filetemplate.txt

-Noofrecords 4
+4   
 1001    raj     CSE     76.5
 1002    raja    IT      80.2
 1003    kumar   CSE     90.2
-1004    siva    IT      65.8
+1004    siva    IT      65.8
\ No newline at end of file