import java.util.*;
 
class Solution {
 
    public int countLongestSubarraysSumK(int[] arr, int k) {
        Map<Integer, Integer> first = new HashMap<>();
        int sum = 0;
        int maxLen = 0;
        int count = 0;
 
        first.put(0, -1);
 
        for (int i = 0; i < arr.length; i++) {
            sum += arr[i];
 
            if (first.containsKey(sum - k)) {
                int leftIndex = first.get(sum - k);
                int len = i - leftIndex;
 
                if (len > maxLen) {
                    maxLen = len;
                    count = 1;       
                } else if (len == maxLen) {
                    count++;         
                }
            }
 
            if (!first.containsKey(sum)) {
                first.put(sum, i);
            }
        }
 
        return count;
    }
}
 
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
 
        // Example input:
        // 6
        // 1 2 -1 2 -1 2
        // 2
 
        int n = sc.nextInt();
        int[] arr = new int[n];
        for (int i = 0; i < n; i++)
            arr[i] = sc.nextInt();
 
        int k = sc.nextInt();
 
        Solution obj = new Solution();
        int ans = obj.countLongestSubarraysSumK(arr, k);
 
        System.out.println(ans);
    }
}
 
 
 
 

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

NgoxIDIgLTEgMiAtMSAyCjI=

6
1 2 -1 2 -1 2
2