题解 | #判断字母#
判断字母
http://www.nowcoder.com/practice/44d2d63103664913bc243d3836b4f341
int main(){
char c = 0;
c = getchar();
if((c>=65 && c<=90)||(c>=97 && c<=122))
printf("YES\n");
else
printf("NO\n");
return 0;
}