WEEK4 C 作業

1 輸入一行字符,分別統計出其中字母,空格,數字和其他字符的個數 #include <stdio.h> void main() {  int letter, space, num, other;  char ch;  letter = space = num = other = 0;  while ((ch = getchar ()) != '\n')  {   if (ch>='a' && ch

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