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JumpingOnTheClouds.java
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JumpingOnTheClouds.java
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import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.regex.*;
public class JumpingOnTheClouds {
// https://www.hackerrank.com/challenges/jumping-on-the-clouds/problem
// Complete the jumpingOnClouds function below.
static int jumpingOnClouds(int[] c) {
int jumps = 0;
if(c.length >2) {
for (int i = 0; i<c.length-2;i++) {
if(c[i+1] == 0) {
if(c[i+2] == 0) {
jumps++;
i++;
continue;
}
jumps++;
}else {
i++;
jumps++;
}
}
if( c[c.length-1] == c[c.length-2] && c[c.length-3] !=0)
jumps++;
}else if(c.length == 2) {
if(c[1] == 0)
jumps = 1;
}
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();
}
}