北京大學ACM比賽題目
Write a program to read four lines of upper case (i.e., all CAPITAL LETTERS) text input (no more than 72 characters per line) from the input file and print a vertical histogram that shows how many times each letter (but not blanks, digits, or punctuation) appears in the all-upper-case input. Format your output exactly as shown.
標簽：
CAPITAL
LETTERS
program
Write
上傳時間：
2014-01-17
上傳用戶：410805624
