I wrote a program in c++ which works, however it has trouble handling big big numbers since the standard library only handles numbers as big as unsigned long long. I was told perl handled big numbers better and so i rewrote the c++ code in perl. When I run the perl code nothing is printed. The number that is printed should be the next largest palindrome from the number that was entered.

use bigint; 


 $testCases = <STDIN>;
 chomp($testCases);
 @arr;

 for($i = 0; $i<$testCases; $i++) { #store values in array
     $k = <STDIN>;
     chomp($k);
     @arr[$i] = $k;
 }
#cycle through array and test whether number stored is a palindrome
#palindrome printed must be greater than stored value
#if stored number is not palindrome increment until smallest palidrome
+ greater thean k is found 
for($j = 0; $j<testCases; $j++) { 
    $win = 0;
    $temp = $arr[j];
    $temp++;  
    while($win == 0) {
        if(isPalindrome($temp)) { 
            printf ("%u \n", $temp);
            $win = 1;  
        }else {
            $temp++;
        }
    }
}

sub isPalindrome($orig){
    $reversed = 0, $n = $orig;
    while($n > 0) {
        $reversed = $reversed * 10 + n % 10;
        $n /= 10; 
    }
    if($orig == $reversed){
        return 1;
    }else {
        return 0;
    }
}

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In reply to Program Not Printing Help by Hrand

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