题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
line = input('', 's');
used = [line(1)];
count = 1;
if i > 1
for i = 2:length(line)
if used ~= line(i)
count = count+1;
used = [used, line(i)];
end
end
end
fprintf('%d', count)
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