Question: int countPairs ( Node * head ) { if ( head = = NULL | | return 0 ; } int count = 0 ;

int countPairs(Node* head){
if (head == NULL ||
return 0 ;
}
int count =0;
Node*p= head;
while
if (
count ++ ;
}
p=p next;
}
}
 int countPairs(Node* head){ if (head == NULL || return 0 ;

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