func_code_string: #include <bits/stdc++.h>   using namespace std;   class Solution {    public:     long long maximize(vector<int>& nums, int x) {       int n = nums.size();       vector<vector<long long>> dp(3, vector<long long>(n + 1, 0));       long long res = 0;       for (int i = 0; i < n; ++i) {         long long num = nums[i];         dp[0][i + 1] = max(0LL, dp[0][i] + num);         dp[1][i + 1] = max(0LL, max(dp[0][i], dp[1][i]) + num * x);         dp[2][i + 1] = max(0LL, max(dp[2][i], dp[1][i]) + num);       }       for (int j = 0; j < 3; ++j) {         for (int i = 0; i <= n; ++i) {           res = max(res, dp[j][i]);         }       }       return res;     }   };   int main(int argc, char** argv) {     ios::sync_with_stdio(false);     cin.tie(0);     Solution sol;     int n, x;     cin >> n >> x;     vector<int> nums(n);     for (int i = 0; i < n; ++i) {       cin >> nums[i];     }     cout << sol.maximize(nums, x) <<   n ;     return 0;   }   