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#include <bits/stdc++.h>

#include <iostream>

using namespace std;

int main(){

//program to find smallest subarray with given sum in On time.

int n;

cin>>n;

int arr[n];

for(int i=0;i<n;i++){

cin>>arr[i];

}

int x;

cin>>x;

int s = 0, e = 0;

int sum = 0;

int ans = INT_MIN;

while(e<n){

while(sum<=x && e<n){

sum += arr[e];

e++;

}

while(sum>x){

ans = min(ans, e - s);

sum -= arr[s];

s++;

}

}

cout<<ans;

return 0;

}