#includestruct student{long num;float score;struct student next;};int main(){struct student a,b,p;a.num=231231;b.num=311;b.score=2.0;a.score=1.0;a.next=&b;p=a->next; error:invalid type argument of '->' (have 'struct student')printf("%ld",p->num);re

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#includestruct student{long num;float score;struct student *next;};int main(){struct student a,b,*p;a.num=231231;b.num=311;b.score=2.0;a.score=1.0;a.next=&b;p=a->next; error:invalid type argument of '->' (have 'struct student')printf("%ld",p->num);re

#includestruct student{long num;float score;struct student next;};int main(){struct student a,b,p;a.num=231231;b.num=311;b.score=2.0;a.score=1.0;a.next=&b;p=a->next; error:invalid type argument of '->' (have 'struct student')printf("%ld",p->num);re