range(num // val[i]): code example

Example 1: Range python iterate by 2

for i in range(0,10,2):
  print(i)

Example 2: for i in range(n-1,0,-1):

# Print first 5 numbers using range function
for i in range(5):
    print(i, end=', ')

# Output:
# 0, 1, 2, 3, 4,