func_code_string: #include <bits/stdc++.h>   using namespace std;   struct trip {     int a, b, c;   };   const int MAXINT = 2 * 1e5 + 1;   int n, c, stairs[MAXINT], elevator[MAXINT], dp[MAXINT][2];   void solve(int pos) {     if (pos < n) {       dp[pos][0] = min(dp[pos - 1][1], dp[pos - 1][0]) + stairs[pos - 1];       dp[pos][1] = min(dp[pos - 1][1], dp[pos - 1][0] + c) + elevator[pos - 1];       solve(pos + 1);     }   }   int main() {     cin >> n >> c;     for (int i = 0; i < n - 1; i++) cin >> stairs[i];     for (int i = 0; i < n - 1; i++) cin >> elevator[i];     for (int i = 0; i < n; i++)       for (int j = 0; j < 2; j++) dp[i][j] = 0x3f3f3f3f;     dp[0][0] = 0, dp[0][1] = c;     solve(1);     for (int i = 0; i < n; i++) cout << min(dp[i][0], dp[i][1]) <<    ;     cout << endl;     return 0;   }   