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//program to create a structure student and calculate percentage based on marks (example of array within a structure) #include<iostream.h> #include<conio.h> struct student { int rollno; char name[20]; int marks[5]; float percentage; }; void main() { clrscr(); student s; float temp=0; int i; cout<<"\nenter rollno of student "; cin>>s.rollno; cout<<"\nenter name of student "; cin>>s.name; for(i=0;i<5;i++) { cout<<"\nenter marks in subject "<<i+1<<" : "; cin>>s.marks[i]; temp=temp+s.marks[i]; } cout<<"\ndisplaying the data "; cout<<"\nrollno of student is "<<s.rollno; cout<<"\nname of student is "<<s.name; for(i=0;i<5;i++) { cout<<"\nmarks of student in subject "<<i+1<<" are "<<s.marks[i]; } s.percentage=temp/5; cout<<"\npercentage is "<<s.percentage; getch(); }