Solution.java

import java.io.*;
import java.util.*;

public class Solution {

    static int jumpingOnClouds(int[] clouds) {
        int numClouds = clouds.length - 1;
        int currCloud = 0;
        int jumps = 0;

        while (currCloud != numClouds) {
            boolean canJumpOverCloud = (currCloud + 2 <= numClouds) && (clouds[currCloud + 2] == 0);
            currCloud += canJumpOverCloud ? 2 : 1;
            jumps++;
        }
        return jumps;
    }

    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String[] args) throws IOException {
        BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH")));

        int n = scanner.nextInt();
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        int[] c = new int[n];

        String[] cItems = scanner.nextLine().split(" ");
        scanner.skip("(\r\n|[\n\r\u2028\u2029\u0085])?");

        for (int i = 0; i < n; i++) {
            int cItem = Integer.parseInt(cItems[i]);
            c[i] = cItem;
        }

        int result = jumpingOnClouds(c);

        bufferedWriter.write(String.valueOf(result));
        bufferedWriter.newLine();

        bufferedWriter.close();

        scanner.close();
    }
}