func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     int n;     cin >> n;     int a[n];     for (int i = 0; i < n; i++) cin >> a[i];     int b[n];     b[0] = 0;     for (int i = 1; i < n; i++) b[i] = abs(a[i] - a[i - 1]);     long long int dp[n], dd[n];     dp[0] = 0;     dd[0] = 0;     for (int i = 1; i < n; i++) {       if (i % 2 == 1) {         dp[i] = dp[i - 1] + b[i];         dd[i] = max(dd[i - 1] - b[i], 0LL);       } else {         dp[i] = max(0LL, dp[i - 1] - b[i]);         dd[i] = dd[i - 1] + b[i];       }     }     long long int ans = 0;     for (int i = 0; i < n; i++) ans = max(ans, dp[i]);     for (int i = 0; i < n; i++) ans = max(ans, dd[i]);     cout << ans << endl;   }   