题解 | #统计字符#

#include <stdio.h>
#include <string.h>

int main() {
    char  str[1001];
    gets(str);
    int c1 = 0, c2 = 0, c3 = 0, c4 = 0;
    int i;
    for (i = 0; i < strlen(str); i++) {
        if (str[i] >= 'A' && str[i] <= 'Z' || str[i] >= 'a' && str[i] <= 'z')
            c1++;
        else {
            if (str[i] == ' ')
                c2++;
            else {
                if (str[i] >= '0' && str[i] <= '9')
                    c3++;
                else
                    c4++;
            }
        }
    }
    printf("%d\n%d\n%d\n%d\n", c1, c2, c3, c4);
    return 0;
}