Var a:array[1..100] of integer;
j,n,i,max,m,S:integer;
Begin
repeat
write('Nhap so N: ');readln(n);
until n<=50;
/cau a/
For i:=1 to n do
Begin
repeat
write('Phan tu thu ' ,i,' :);readln(A[i]);
until A[i]<=500;
End;
/cau b/
For i:=1 to n do S:=S+A[i];
Writeln('Tong cua day',S);
/cau c va cau d/
max :=A[1];
m:=1;
For i:=2 to n do
If A[i]>max then begin
max:=A[i];
m:=i;
End;
writeln('Gia tri lon nhat cua day',max);
writeln('Chi so lon nhat cua day',m);
j:=0;
For i:=1 to n do
If A[i]= max then
j:=j+1;
writeln('so phan tu cung lon nhat',j);
/cau e/
Writeln('Chi so cac phan tu =0');
For i:=1 to n do
If A[i]=0 then writeln(i);
readln;
end.