For10. An integer number N (> 0) is given. Find the sum
1 + 1/2 + 1/3 + ... + 1/N
(real number).

Solution in Python 3:

import random

N = random.randrange(10)
print('N = ', N)

S = 0.0
for i in range(N):
    S += 1/(i+1)
    print(i+1," : ",1/(i+1)," : ",S)
print("Sum = ",S)