$1)$ Derive the def$-$use chain for all the variables of the following program.

$2)$ List and analyze all possible anomalies in the following:

Program

$\{$

read $($s$)$

read $($m$)$

int j

for $($j :$=0$; j $$ max; j:$=$ j$+1)$

$\{$

if $($s $>=$ val$)$ then

$\{$

m:$=$ c $+10$

$\}$

if $($s $$ val $)$ then

$\{$

s:$=$ s $+$ val

m:$=2*$ m

$\}$

$\}$

Print $($s$,$ val, c$)$;

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