#include

#include

#include

#include

$//$ Mutex to protect the shared accumulator

pthread$\_$mutex$\_$t mutex;

$//$ Shared accumulator for counting prime numbers and sum

int prime$\_$count $=0$;

int prime$\_$sum $=0$;

$//$ Returns whether num is prime

int isprime$($int num$)\{$

if $($num $<2)\{$

return $0$;

$\}$

for $($int i $=2$; i $*$ i $<=$ num; $++$i$)\{$

if $($num $\%$ i $==0)\{$

return $0$;

$\}$

$\}$

return $1$;

$\}$

$//$ Thread function to count prime numbers

void$*$ count$\_$primes$($void$*$ rank$)\{$

long my$\_$rank $=($long$)$rank;

int start $=$ my$\_$rank $*($BOUND $/$ thread$\_$count$)$;

int end $=($my$\_$rank $+1)*($BOUND $/$ thread$\_$count$)$;

if $($my$\_$rank $==$ thread$\_$count $-1)\{$

end $=$ BOUND; $//$ Handle the remainder

$\}$

int local$\_$count $=0$;

for $($int i $=$ start; i $<$ end; $++$i$)\{$

if $($is$\_$prime$($i$)==1)\{$

$++$local$\_$count;

$\}$

$\}$

$//$ Update the global count using a mutex

pthread$\_$mutex$\_$lock$($&mutex$)$;

prime$\_$count $+=$ local$\_$count;

pthread$\_$mutex$\_$unlock$($&mutex$)$;

return NULL;

$\}$

int main$($int argc,char $*$argv$[])\{$

if$($argc $!=3)\{$

printf$("$Please enter two valid number

$")$;

return $0$;

$\}$

$//$give the two vaue to num$1$ and num$2$

int childthreads $=$ atoi$($argv$[1])$;

int maxnumber $=$ atoi$($argv$[2])$;

$//$ Initialize mutex

pthread$\_$mutex$\_$init$($&mutex, NULL$)$;

$//$ Create an array of thread handles

pthread$\_$t$*$ thread$\_$handles $=$ malloc$($childthreads$*$ sizeof$($pthread$\_$t$))$;

$//$ Create threads

for $($long thread $=0$; thread $<$ childthreads; $++$thread$)\{$

pthread$\_$create$($&thread$\_$handles$[$thread$],$ NULL, count$\_$primes, $($void$*)$thread$)$;

$\}$

$//$ Join threads

for $($long thread $=0$; thread $<$ childthreads; $++$thread$)\{$

pthread$\_$join$($thread$\_$handles$[$thread$],$ NULL$)$;

$\}$

$//$ Print the final result

printf$("$GRAND SUM IS $\%$d$,$ COUNT IS $\%$d$",$ prime$\_$sum, prime$\_$count$)$;

$//$ Clean up

free$($thread$\_$handles$)$;

pthread$\_$mutex$\_$destroy$($&mutex$)$;

return $0$;

$\}$

check wrong in my code