题解 | #统计字符#

#include <stdio.h>
#include <ctype.h>

static char g_string[1001] = {0};
static short g_num[4] = {0};
int main(int argc, char** argv)
{
    gets(g_string);
    for (int i = 0; i < strlen(g_string); i++) {
        if (isalpha(g_string[i])) g_num[0]++;
        else if (isspace(g_string[i])) g_num[1]++;
        else if (isdigit(g_string[i])) g_num[2]++;
        else g_num[3]++;
    }
    for (int i = 0; i < 4; i++) printf("%d\n", g_num[i]);
    return 0;
}