Long stairs: Difference between revisions
Added Dart
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Average final length of staircase: 14707.466000
</pre>
=={{header|Dart}}==
{{trans|C}}
<syntaxhighlight lang="dart">import 'dart:math';
void main() {
int secsTot = 0,
stepsTot = 0; // keep track of time and steps over all the trials
Random rand = new Random();
print("Seconds steps behind steps ahead");
for (int trial = 1; trial <= 10000; trial++) {
// 10000 attempts for the runner
int sbeh = 0, slen = 100, secs = 0; // initialise this trial
while (sbeh < slen) {
// as long as the runner is still on the stairs
sbeh += 1; // runner climbs a step
for (int wiz = 1; wiz <= 5; wiz++) {
// evil wizard conjures five new steps
if (rand.nextInt(slen) < sbeh)
sbeh += 1; // maybe a new step is behind us
slen += 1; // either way, the staircase is longer
}
secs += 1; // one second has passed
if (trial == 1 && 599 < secs && secs < 610)
print("$secs $sbeh ${slen - sbeh}");
}
secsTot += secs;
stepsTot += slen;
}
print("Average secs taken: ${secsTot / 10000.0}");
print("Average final length of staircase: ${stepsTot / 10000.0}");
}</syntaxhighlight>
{{out}}
<pre>Similar as C entry.</pre>
=={{header|Factor}}==
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