₦airaland Forum

Write a program that will print out a random number between 0 to 100, with numbers from 0 to 50 having about 80% or more chance of occuring again than numbers from 51 to 100. RULES 1)Run your program in www.ideone.com or post it here if you can't.
2)No dirty brute forcing is allowed.
3)The shortest and fastest code wins.
4)Your code should be able to run on a poor pc. Good luck

/* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);

/* give numbers 51-100 a 1:5 probability of
occuring */

if($probability == 3){
$random_num = mt_rand(0,50);
}else{
$random_num = mt_rand(51,100);
}

/* $probability is always btw 1-5 ensuring an event happens when its 3 gives it a 1:5 probability */

Z8: /* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);

/* give numbers 51-100 a 1:5 probability of
occuring */

if($probability == 3){
$random_num = mt_rand(0,50);
}else{
$random_num = mt_rand(51,100);
}

/* $probability is always btw 1-5 ensuring an event happens when its 3 gives it a 1:5 probability */

ideone.com/6E3p6Q
Took 0.01 seconds

--

Z8: ideone.com/6E3p6Q
Took 0.01 seconds

you are close to getting the solution but wrong. Look at your code more and check the output.

elvis10ten: you are close to getting the solution but wrong. Look at your code more and check the output.

/* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);
/* give numbers 51-100 a 1:5 probability of
occuring */
if($probability == 3){
$random_num = mt_rand(51,100);
}else{
$random_num = mt_rand(0,50);
}
/* $probability is always btw 1-5 ensuring an
event happens when its 3 gives it a 1:5
probability */

Z8: /* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);
/* give numbers 51-100 a 1:5 probability of
occuring */
if($probability == 3){
$random_num = mt_rand(51,100);
}else{
$random_num = mt_rand(0,50);
}
/* $probability is always btw 1-5 ensuring an
event happens when its 3 gives it a 1:5
probability */

Where is your <?php and ?> ?. Where is echo ?. Not because they are common that you need to forget them.

elvis10ten: Where is your <?php and ?> ?. Where is echo ?. Not because they are common that you need to forget them.

<?php
/* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);
/* give numbers 51-100 a 1:5 probability of
occuring */
if($probability == 3){
$random_num = mt_rand(0,50);
}else{
$random_num = mt_rand(51,100);
}
/* $probability is always btw 1-5 ensuring an
event happens when its 3 gives it a 1:5
probability */

echo $random_num;
?>

Z8: <?php
/* simulating a 80:100 probability scenerio
which is the same as 4:5 */
$probability = mt_rand(1,5);
/* give numbers 51-100 a 1:5 probability of
occuring */
if($probability == 3){
$random_num = mt_rand(0,50);
}else{
$random_num = mt_rand(51,100);
}
/* $probability is always btw 1-5 ensuring an
event happens when its 3 gives it a 1:5
probability */

echo $random_num;
?>

can u get it on www.ideone.com, lets all see the output ?. It would run and its the best and only solution so far.

ideone.com/Gbt0Db

Bravo, @ Z8 you won man.