题解 | #判断字母#

#include <stdio.h>
//小写字母的ASCII值的范围是65~90
//小写字母的ASCII值的范围是97~122
int main()
{
    char ch = 0;
    scanf("%c", &ch);
    char* p = &ch;
    if((*p >= 65 && *p <= 90 )|| (*p >= 97 && *p <= 122))
    {
        printf("YES\n");
    }
    else {
        printf("NO\n");
    }
    return 0;
}