func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long int mod = 1e9 + 7;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(NULL);     cout.tie(NULL);     long long int n, c[100005], dp[100005][2], i, j;     cin >> n;     string s[100005], rs[100005];     for (i = 1; i <= n; i++) cin >> c[i];     for (i = 1; i <= n; i++) {       cin >> s[i];       rs[i] = s[i];       dp[i][0] = dp[i][1] = 1e15;       reverse(rs[i].begin(), rs[i].end());     }     dp[1][0] = 0;     dp[1][1] = c[1];     for (i = 2; i <= n; i++) {       if (s[i] < s[i - 1] && s[i] < rs[i - 1] && rs[i] < rs[i - 1] &&           rs[i] < s[i - 1]) {         cout <<  -1 ;         return 0;       }       if ((string)s[i] >= s[i - 1] && dp[i - 1][0] != 1e15)         dp[i][0] = min(dp[i][0], dp[i - 1][0]);       if ((string)s[i] >= rs[i - 1] && dp[i - 1][1] != 1e15)         dp[i][0] = min(dp[i][0], dp[i - 1][1]);       if ((string)rs[i] >= s[i - 1] && dp[i - 1][0] != 1e15)         dp[i][1] = min(dp[i][1], c[i] + dp[i - 1][0]);       if ((string)rs[i] >= rs[i - 1] && dp[i - 1][1] != 1e15)         dp[i][1] = min(dp[i][1], c[i] + dp[i - 1][1]);     }     long long int ans = min(dp[n][0], dp[n][1]);     if (ans == 1e15)       cout <<  -1 ;     else       cout << ans;     return 0;   }   