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测试数据没有按题目要求给!害我RUNTIME ERROR了N次,后来把查找改得更容错才过!!题目上说: The first line of input file contains integer N (1 <= N <= 50) -- number of rows. Following N lines contain 20 characters each, with characters that are either a letter from 'A' to 'Z' or the dot character (ASCII 46), representing an empty cell. 可是测试数据中居然有字母不是'A'~'Z'和'.' 我再查找字母时,原来是找不是"."的字符,我就认为是字母,结果打死怎么都数组超界. 后来改成找字母是"A"~"Z"的才好. 太烦了,让我查了两个小时. Followed by:
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