func Exercise67() int {
tri := utils.ReadFileOrURL("../docs/exercise67.dat", "http://projecteuler.net/project/triangle.txt")
lines := triangles.Splittext(tri)
nlines := len(lines)
max, _ := triangles.Maxroute(lines[1:nlines])
return max
}
func Exercise18() int {
lines := triangles.Splittext(ttext)
total, _ := triangles.Maxroute(lines)
return total
}