Wrong Answer
/in/foo.c: In function 'main':
/in/foo.c:9:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[256]' [-Wformat=]
scanf("%s",&a);//输入字符
^
/in/foo.c: In function 'main':
/in/foo.c:9:13: warning: format '%s' expects argument of type 'char *', but argument 2 has type 'char (*)[256]' [-Wformat=]
scanf("%s",&a);//输入字符
^
