func_code_string: #include <bits/stdc++.h>   using namespace std;   int main() {     ios_base::sync_with_stdio(0);     cin.tie(0);     int k, b, n;     cin >> k >> b >> n;     map<int, int> freq;     freq[0]++;     int cont_zeros = 0;     int cur_mod = 0;     long long total_zeros = 0;     long long total_mod = 0;     for (int i = 0; i < n; ++i) {       int u;       cin >> u;       if (u == 0) {         cont_zeros++;         total_zeros += cont_zeros;       } else {         cont_zeros = 0;       }       cur_mod = (cur_mod + u) % (k - 1);       int tt = (k - 1 + cur_mod - b) % (k - 1);       total_mod += freq[tt];       freq[cur_mod]++;     }     if (b == 0) {       cout << total_zeros <<   n ;     } else if (b == k - 1) {       cout << total_mod - total_zeros <<   n ;     } else {       cout << total_mod <<   n ;     }     return 0;   }   