zhtlancer
Project Eular #4 #5 #6 (Python)
Yet another three easy problems. #4 Find the largest palindrome made from the product of two 3-digit numbers. A palindromic number reads the same both ways. The largest palindrome made from the product of two 2-digit numbers is 9009 = 91 × 99. Find the largest palindrome made from the product of two 3-digit numbers. [...]
Project Eular #3 (Python)
Find the largest prime factor of a composite number. The prime factors of 13195 are 5, 7, 13 and 29. What is the largest prime factor of the number 600851475143 ? #!/usr/bin/env python num = 600851475143 seg_size = 10000 base_factor = 0 prime_factors = [] while base_factor*seg_size < num: for tmp in range(seg_size*base_factor, seg_size*(base_factor+1)): if [...]
Project Eular #2 (Python)
Project Eular #2 Each new term in the Fibonacci sequence is generated by adding the previous two terms. By starting with 1 and 2, the first 10 terms will be: 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, … Find the sum of all the even-valued terms in the sequence which do not [...]
Project Eular #1(Python)
Project Eular #1 If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23. Find the sum of all the multiples of 3 or 5 below 1000. #!/usr/bin/env python sum = 0 for num in range(3,1000,3): [...]
Shortcut keys for BlackBerry qwerty devices
BlackBerry has implemented plenty of shortcut keys to help improve users’ experience. Also, there are some hidden functions that can only be triggered by special key combination. There is a collection of Blackberry shortcut keys, which are collected during my BlackBerry addiction time. Hope they are helpful to those who are new to BlackBerry. Enjoy~ [...]