project euler
Project Eulerをvimscriptで解く。楽しい。
とりあえず1, 2問くらいは載せてみる。
" 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. let i = 1 let sum = 0 while i < 1000 if (i % 3) == 0 || (i % 5) == 0 let sum += i endif let i += 1 endwhile echo "sum : " . sum
" 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, ... " " By considering the terms in the Fibonacci sequence whose values do not " exceed four million, find the sum of the even-valued terms. function! Fibo(list,v1,v2) call add(a:list,a:list[a:v1]+a:list[a:v2]) return a:list[-1] endfunction let list = [1, 2] let v1 = 0 let v2 = 1 let sum = list[v1] + list[v2] while 1 let sum += Fibo(list,v1,v2) let v1 += 1 let v2 += 1 if list[v2] > 4000000 break endif endwhile echo "sum : " . sum