uses crt; var n,i,dem,tong:longint; a:array[1..10000000]of longint; begin clrscr; write(‘So phan tu cua day so: ‘);readln(n); for i:=1 to n do begin write(‘Phan tu thu ‘,i,’ cua mang: ‘);readln(A[i]); if a[i] mod 2=0 then begin inc(dem); inc(tong,a[i]); end; end; writeln(‘Trung binh cong ca phan tu chan cua day: ‘,tong/dem:0:5); readln; end.
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uses crt;
var n,i,dem,tong:longint; a:array[1..10000000]of longint;
begin
clrscr;
write(‘So phan tu cua day so: ‘);readln(n);
for i:=1 to n do
begin
write(‘Phan tu thu ‘,i,’ cua mang: ‘);readln(A[i]);
if a[i] mod 2=0 then begin inc(dem); inc(tong,a[i]); end;
end;
writeln(‘Trung binh cong ca phan tu chan cua day: ‘,tong/dem:0:5);
readln;
end.
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Test: