let dfs $[20,1,5,18,90,60,52,60,6,61,43,52)$;

let x $=$ null

let a null:

for $($let b$=0$; b dfs$.$ length: b$++)\{$

if $($x $=$ null$)\{$

x $=$ dfs $[$b$]$;

continue;

if $($a$==$ null$)\{$

if $($x $>$ dfs $[$b$])\{$

a$=$x;

x $=$ dfs$[$b$]$;

continue;

$\}$ else $\{$

if $($x $==$ dfs$[$b$])\{$

continue;

$\}$

a $=$ dfs$[$b$]$;

continue;

$\}$

if $($x dfs $[$b$])\{$

continue;

if $($x dfs$[$b$])\{$

x $=$ dfs $[$b$]$;

$\}$ else if $($x $=$ dfs $($b$)$ && xa$)($

if $($a dfs$[$b$])($

continue;

$2$

a$=$ dfsibl