/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
/* Name of the class has to be "Main" only if the class is public. */
class Ideone
{
	public static void main (String[] args) throws java.lang.Exception
	{    
  Scanner sc = new Scanner(System.in);
      int n = sc.nextInt();
       int [ ] arr = new int [n+1];
        int [ ] prefixSum=new int [n+1];
     for (int i = 1 ; i <=n ;i++){
             arr[i]=sc.nextInt();
          };
     for (int j = 1 ; j<=n ;j++){
         prefixSum[j] = prefixSum[j-1]+arr[j];
          };
    int count = 0;
    int k = sc.nextInt();
	for (int i = 1 ; i<=n; i++){
       for (int j = 1 ; j<=i;j++ ){
         if (prefixSum[i] - prefixSum[j-1]==k){
         count ++;
            }
          }
        }
         System.out.println(count);
	}
}

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

NgoxIDIgMyAtMiA1IDEKNQoK

6
1 2 3 -2 5 1
5