A string parameter and returns new string with all the letters of the alphabet that are not in the argument string. The letters in the returned string should be in alphabetical order. The implementation should uses a histogram from the histogram function
Explanation:
The below code is written in python :
alphabet = "abcdefghijklmnopqrstuvwxyz"
test_dups = ["zzz","dog","bookkeeper","subdermatoglyphic","subdermatoglyphics"]
test_miss = ["zzz","subdermatoglyphic","the quick brown fox jumps over the lazy dog"]
def histogram(s):
d = dict()
for c in s:
if c not in d:
d[c] = 1
else:
d[c] += 1
return d
def has_duplicates(s):
for v in histogram(s).values():
if v > 1:
return True
return False
def test_dups_loop():
for s in test_dups:
print(s + ':', has_duplicates(s))
def missing_letters(s):
r = list('abcdefghijklmnopqrstuvwxyz')
s = s.lower()
for c in s.lower():
if c in r:
r.remove(c) # the first matching instance
return ''.join(r)
def test_miss_loop():
for s in test_miss:
print(s + ':', missing_letters(s))
def main():
test_dups_loop()
test_miss_loop()
if __name__ == '__main__':
main()
Store data. do you have options?
Answer:
Bid on item
Explanation:
Consumers who wish to make a purchase from other consumer on ebay need to first of all bid on the item. This is done by specifying the price in which the purchase should be made.
When this is done, the seller contacts the buyer if he/she’s okay with the price of the goods and services and other formalities are discussed.
Program testing is an evaluative process which is also called Unit Testing by the programmers.
Explanation:
Software testing is an important step in the software development process. The procedure analyzes the functionality of it and if it meets the specified requirements or not. This is a four-stage procedure that involves analysis, planning, development, setting the test environment, and finally the execution of the test.
The main stages of testing that will result in an error-free and quality product are-
- Unit testing
- Integration testing
- System testing
- Acceptance testing
