Code

// you can also use imports, for example:
// import java.util.*;

// you can write to stdout for debugging purposes, e.g.
// System.out.println("this is a debug message");

class Solution {
    public int solution(int[] A, int[] B) {
        // write your code in Java SE 8
        int answer = 0;

        int previousLineEndIndex = -1;

        for(int i=0; i<A.length; i++) {
            if(A[i] > previousLineEndIndex) {
                answer++;
                previousLineEndIndex = B[i];
            }
        }

        return answer;
    }
}

Result Doc

• https://app.codility.com/demo/results/training2RXRKC-434/