哪位大佬能帮蒟蒻改一下？（前缀和+双指针）

#include<bits/stdc++.h>
#define int long long
using namespace std;

const int N = 2e5 + 10;
int n, s, a[N], sum[N];

signed main() {
	cin >> n >> s;

	for (int i = 1; i <= n; ++i)
		cin >> a[i];

	for (int i = 1; i <= n; ++i)
		sum[i] = a[i] + sum[i - 1];

	s %= sum[n];
	if (s == 0) {
		cout << "Yes" << endl;
		return 0;
	}

	int l = 1, r = n;
	while (l <= r) {
		int tot = sum[r] - sum[l - 1];
		if (tot == s) {
			cout << "Yes" << endl;
			return 0;
		} else if (tot < s) r--;
		else l++;
	}

	cout << "No" << endl;
	return 0;
}