Susanne wrote: ... I spent more and more time trying problems ...
Its the same with me. And I am afraid, the time will come, that a week will not be sufficient to solve the problem of the week.
And: in contrast to the beginning the problems are carefully designed such, that a brute force attack is
impossible.
I definitely agree that the problems have been getting harder. I have solved some 178 problems, and have reached the point where I simply don't have enough time with school and the rest of my life (freshman in college) to sit down and spent a number of hours working on a problem from Project Euler. I am hopeful, though, that in the future when I have both more time and knowledge I will be able to complete more of them, as I really have enjoyed doing so thus far.
ThomasH wrote:And I am afraid, the time will come, that a week will not be sufficient to solve the problem of the week.
Why afraid? I do agree with the general feeling that the problems are getting harder, but I love it. Sometimes I get annoyed with a problem and ignore it for a couple of weeks, let a few problems build up, and then finally spot something crucial and solve them all at once. The harder the better, as it means the more time I spend solving them
