Class 11 CS Practical - 50

 

50 - Write a program in Python to count the frequency of all elements of a list.

L= [10, 20, 30, 20, 40, 30, 20, 50]

print("List is: ",L)

Uni= []

Freq= []

for i in L:

    if i in Uni:

        index=Uni.index(i)

        Freq[index]+= 1

    else:

        Uni.append(i)

        Freq.append(1)

for i in range(len(Uni)):

    print(Uni[i],":",Freq[i])

Output:

List is:  [10, 20, 30, 20, 40, 30, 20, 50]

10 : 1

20 : 3

30 : 2

40 : 1

50 : 1