... ',d,' so Amstrong co it hon 4 chu so! '); readlnEnd.BT 2.55 .So n thuoc N duoc goi la so palindrome neu no doi xung(Vd:121,3223, )Kiem tra so n(n<2147483648) co la so palindrome ... readln;End.BT 3.4.Cho 3 so thuc a,b,c tinh gia tri cua bthuc.BT 2.29. Nhap vao 1 day cac so nguyen tu ban phim cho den khi gap so 0, Sau do tinh tong cac so duong, trung binh cong cac so am.Var n,Tsd,Tsa:integer; ... then begin write(i,' '); inc(dem); end; if dem=0 then writeln('Ko co so Hp-ngto nao'); readln;End.Link đề thi HSG Toán+http://dethi.violet.vn/present/show/entry_id/3493381+http://violet.vn/thcs-thachlap-thanhhoa/present/show/entry_id/5867134+http://diendan.hocmai.vn/showthread.php?t=185307+http://www.docstoc.com/docs/7532523/%C4%90%E1%BB%80 -THI- H%E1%BB%8CC-SINH-GI%E1%BB%8EI-L%E1%BB%9AP-8BT...