func_code_string: #include <bits/stdc++.h>   using namespace std;   int const N = 100000;   long long a[N + 5], res;   int n, p;   int main() {     cin >> n >> p;     for (int i = 1; i <= n; ++i) {       cin >> a[i];       a[i] += a[i - 1];     }     for (int i = 1; i < n; ++i) res = max(res, a[i] % p + (a[n] - a[i]) % p);     cout << res;     return 0;   }   