练习 1-12 编写一个程序,以每行一个单词的形式打印其输入。
1 #include <stdio.h> 2 3 #define IN 1 4 #define OUT 0 5 6 int main(int argc, char const *argv[]) 7 { 8 int c, state; 9 10 state = OUT; 11 12 while ((c = getchar()) != EOF) { 13 if (c == 'n' || c == ' ' || c == 't') { 14 if (state == IN) { 15 putchar('n'); 16 state = OUT; 17 } 18 } 19 else if (state == OUT) { 20 state = IN; 21 putchar(c); 22 } 23 else 24 putchar(c); 25 } 26 27 return 0; 28 }
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