Tim diem day cap bi dut

Xin chao cac ban, de minh noi ro hon ve van de minh dang gap de cac bac day tuong tan ma dua ra huong giai quyet giup. Van de minh dang gap phai o day chi don gian la cap doi thoi (loai hai ruot trong mot soi tron). Minh cam on bac RandomWalkerda gioi thieu cho cai may do diem dut cap nhung neu nhu minh biet duoc nguyen ly tim diem dut roi rap duoc mot mach dien de tu minh giai quyet thi hay qua (qua do hoc hoi them do ma).
Xin da ta!!!