2014年西北工业大学机试第八题

#include<iostream>
#include<string>
using namespace std;
int main(){
	
	int a = 0,b = 0,c = 0,d = 0;
	string s;
	getline(cin,s);
	for(int i = 0;i < s.length();i++){
		if( (s[i] >= 'a'&&s[i] <= 'z')||(s[i] >= 'A'&&s[i] <= 'Z') ){
			a ++;
		}else if(s[i] == ' '){
			b ++;
		}else if(s[i] >= '0'&&s[i] <= '9'){
			c ++;
		}else{
			d++;
		}
	}
	cout<<a<<" "<<b<<" "<<c<<" "<<d<<endl;
	return 0;
}