₦airaland Forum

Slyr0x:
Great job Jacob05. Your solution is more efficient.

Solution below as solved by someone on my team

bcscale(25);
$itotal = "0";
$xt = "0.7893";$ii = 1;
$yyy = "1";while ($ii <= 5000)
{
    $y2 = intval(gmp_add($yyy,"1");
    $y3 = strval($y2);
    
    $factit = gmp_fact($y2);
    
    $at = bcdiv(gmp_mul("2", gmp_sub($factit,"1"), $factit);
    $xtpow = bcpow($xt,$y2);
    
    $anst = bcmul($at,$xtpow);
    
    $itotal = bcadd($itotal,$anst);
    $yyy = gmp_add($yyy,"1";
    $ii++;
    
}

echo "Solution: " .$itotal."<br />";

@slyrox if you run both scripts @jacob05's python and the php you uploaded, they are not providing the same output. So there is something wrong somewhere.