42) 주어진 텍스트 파일에 들어있는 '삼각단어'의 개수는?
http://euler.synap.co.kr/prob_detail.php?id=42 Skillist 설명--------------------------------------------------------------------------------- public static void main (String[] args){String str[] = new String[]{"A","ABILITY","ABLE","ABOUT","ABOVE","ABSENCE","ABSOLUTELY","ACADEMIC","ACCEPT","ACCESS","ACCIDENT","ACCOMPANY","ACCORDING","ACCOUNT","ACHIEVE","ACHIEVEMENT","ACID","ACQUIRE","ACROSS","ACT",..