알고리즘 썸네일형 리스트형 [Top-coder] SRM 510 DEV 2 - 250 문제 원문. Problem Statement John and Brus believe that the digits 4 and 7 are lucky and all others are not. According to them, an almost lucky number is a number that contains at most one non-lucky digit in its decimal representation. Return the total number of almost lucky numbers between a and b, inclusive. Definition Class: TheAlmostLuckyNumbersDivTwo Method: find Parameters: int, int Returns: i.. 더보기 이전 1 다음