+use constant LEVEL_VALUES => {
+ beginner => 100,
+ easy => 250,
+ medium => 500,
+ hard => 1000,
+};
+
+sub calc_score{
+ my ($user, $problem, $date, $tries) = @_;
+ my $mxscore = LEVEL_VALUES->{problem_level($problem)};
+ my $score = $mxscore;
+ my $timetaken = $date - get_open($problem, $user);
+ $timetaken = 1 if $timetaken < 1;
+ $timetaken = 150 + int rand 150 if $timetaken > 3600;
+ $score = (3600 - $timetaken) / 3600 * $score;
+ $score -= $tries / 10 * $mxscore;
+ $score = $mxscore * 3 / 10 if $score < $mxscore * 3 / 10;
+ int $score
+}
+