[Algorithm] BOJ 1152

#include <iostream>
#include <string>
using namespace std;

int main()
{
    string tmp;
    int num = 0;
    getline(cin,tmp);
    
    for(int i = 0; i<tmp.size(); i++)
    {
        if(tmp[i] == 32)
            num++;
    }
    if(tmp[0] == 32 && tmp[tmp.size()-1] == 32)
        cout << num-1 << endl;
    else if((tmp[0] == 32 || tmp[tmp.size()-1] == 32))
        cout << --num + 1 << endl;
    else
        cout << num+1 << endl;
    return 0;
}