题解 | #判断字母#
判断字母
http://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341
int main()
{
char a = 0;
scanf ("%c",&a);
if((a >= 'A' && a <= 'Z')||(a >= 'a' && a <= 'z'))
{
printf ("YES");
}
else
{
printf ("NO");
}
return 0;
}