DSL A2

 Write a Python program to store marks scored in subject “Fundamental of Data Structure” by N students in the class. Write functions to compute following: 

a) The average score of class 

b) Highest score and lowest score of class 

c) Count of students who were absent for the test 

d) Display mark with highest frequency

The Code for above problem is as follows :

 """  
 @author: SPPU SE GURU  
 """  
   
 total=int(input ("Enter total no. of students in your class "))  
 pre=int(input("No. of students appeared for FDS exam : "))  
   
 U=[]  
 for i in range (total):  
  i=i+1  
  U.append(i)  
   
 R=[]  
 for i in range(pre):  
   roll=int(input("Enter Roll no. of students present for test :- "))  
   R.append(roll)  
   
 M=[]  
 for i in range(pre):  
   print("Enter Roll no. ",R[i],end=" ")  
   marks=int(input("Marks:- "))  
   M.append(marks)  
 print("********** Solutions Are as follows ***********")  
 #avg  
 sum=0  
 for i in range(len(M)):  
  sum=sum+M[i]  
 avg=sum/pre   
 print ("Average of Class",int(avg))  
   
   
 #Highest and Lowest  
 index1=0  
 max=M[0]  
 for i in range(1,len(M)):  
   if max<M[i]:  
    max=M[i]  
    index1=i  
      
 print("Highest Marks",max)  
 print("Roll no. of highest mark student :",R[index1])  
   
   
 index2=0  
 min=M[0]  
 for i in range(1,len(M)):  
   if min>M[i]:  
    min=M[i]  
    index2=i  
      
 print("Lowest Marks",min)    
 print ("Roll no. of lowest mark student :",R[index2])  
   
   
 #abs cout  
 a=0  
 abs=[]  
 for i in range (len(U)):  
  flag=0  
  for j in range(len(R)):  
   if U[i]==R[j]:  
    flag=1  
    break  
  if flag==0:  
   abs.append(U[i])  
   a=a+1  
 print("Roll no. of absent students :",abs)  
 print("Total no. students absent for test :",a)  
     
     
 #frequency  
 freq=[]  
 for i in range (len(M)):  
  freq.append(1)  
    
   
 for i in range(len(M)):  
  for j in range(len(M)):  
    if M[i]==M[j]:  
     freq[i]+=1  
 index=0      
 fmax=freq[0]      
 for i in range(1,len(freq)):  
   if fmax<freq[i]:  
     fmax=freq[i]  
     index=i  
 if freq[i]==1:  
     print("All marks are unique")    
 else:    
     print("max frequency",M[index])