...2.7....

[算法组-林宇豪]

1025

#include <stdio.h>
 
int main()
{   //声明变量
    char c1, c2, c3, max;
    //输入字符
    scanf("%c %c %c", &c1, &c2, &c3);
    //求最大字符
        max = c1;
    if(c2 > max)
        max = c2;
    if(c3 > max)
        max = c3;
        
    printf("%c\n", max);
    return 0;
}

1026

#include <stdio.h>
 
int main()
{   //声明变量
    char ch;
    //输入字符
    ch = getchar();
    //判断字符类型
    if(ch >= 'a' && ch <= 'z')
        printf("lower\n");
    else if(ch >= 'A' && ch <= 'Z')
        printf("upper\n");
    else if(ch >= '0' && ch <= '9')
    printf("digit\n");
    else
    printf("other\n");
    return 0;
}