func_code_string: #include <bits/stdc++.h>   using namespace std;   const int maxn = 1e4 + 10;   int n, A[maxn];   int main() {     cin.sync_with_stdio(false);     cin >> n;     for (int i = 1; i <= n; ++i) cin >> A[i];     int cnt = 0;     for (int i = 2; i <= n - 1; ++i)       if ((A[i] > A[i - 1] && A[i] > A[i + 1]) ||           (A[i] < A[i - 1] && A[i] < A[i + 1]))         ++cnt;     cout << cnt << endl;     return 0;   }   