题解 | #统计字符#

#include <string.h>

int main()
{
    char str[1002];
    while( fgets(str, sizeof(str), stdin))
    {
        int a=0,b=0,c=0,d=-1;
    for(int i=0;i<strlen(str);i++)
    {
        if(str[i]==' ')
            b++;
        else if(str[i]<='9'&&str[i]>='0')
            c++;
        else if((str[i]<='z'&&str[i]>='a')||(str[i]<='Z'&&str[i]>='A'))
            a++;
        else
            d++;
}
    printf("%d\n%d\n%d\n%d\n",a,b,c,d);
        memset(str, 0, sizeof(str));
    }
}