题目

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String str = sc.nextLine();
		int res = 0;
		for(int i=0;i<str.length();i++) {
			char c = str.charAt(i);
			if(c!=' ' && c!='\n') {
				res++;
			}
		}
		System.out.println(res);
	}
}

import java.util.Scanner;

public class Main {
	public static void main(String[] args) {
		Scanner sc = new Scanner(System.in);
		String s = sc.nextLine();
		char[] c = s.toCharArray();
		int res = 0;
		for(int i=0;i<c.length;i++) {
			if(c[i] == ' '||c[i] == '\n')
				continue;
			else
				res++;
		}
		System.out.println(res);
		sc.close();
	}
}