Random Notes and Various Works

What is the maximum number of 3-digit numbers that can be selected such that the sum of any two numbers is NOT divisible by 5? # Run Python Program:  https://py3.codeskulptor.org/#user303_DO1Dc2Ko42WEolL.py # Question: What is maximum number of 3-didgit numbers that can be selected such that the sum of any two numbers #           is NOT divisible by 5? num_list = range(100,1000) #num_list = [100, 101, ... 998, 999] sum_of_2_not_div_by_5 = [100,]  # First number is 100. Its last digit is 0                                 # Last digit 0 added with 'any other number that is not divisible by 5'                                 # will result a number that will not be divisible by 5                              ...

Getting information on how to apply Viertnam visa is havoc if you do a internet search. 1-ONLINE eVISA (Easiest and cheapest) We have applied online eVisa for 11 person on https://evisa.xuatnhapcanh.gov.vn/ during our visit on June 2017 - One application per person - USD 25+1 per person, 30-50% cheaper than on-arrival visa. 80% cheaper that - Three working day for approval - Use white background photo craps in 2:3 ratio - Use reference number received in email and check/download eVisa https://evisa.xuatnhapcanh.gov.vn/tra-cuu-thi-thuc - Print eVisa and straight to to Vietname immigration - Save 1.5 hours time on Vietnam airport is you are not getting on-arrival visa 2- On Arrival Visa -  It is 2 part process - Why you want to Internet search will list few hundred agents. Ensure that there is no record of cheating of agent website - USD 6 to 28 for pre-approval letter. Pre-approval letter may have some other name of some other country as agent may apply ma...