输入字符串以及输出

#include <iostream>
using namespace std;
void  tongji(char str0[100],int  b[4])
{
int i;
for(i=0;str0[i]!='\0';i++)
{
if(str0[i]>='A'&&str0[i]<='Z'||str0[i]>='a'&&str0[i]<='z')
b[0]++;
else if(str0[i]>=48&&str0[i]<=57)
b[1]++;
else if(str0[i]==32)
b[2]++;
else b[3]++;
}}
int main()
{
char str[100];
int i,a[4]={0};
cin.getline(str,99);
tongji(str,a);
for(i=0; i<4; i++)
cout<<a[i]<<" ";
cout<<endl;
return 0;
}