func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 260;   const int MOD = 1000000000 + 7;   int n, m, t;   int mid;   int v[N], mod[N];   bool g[10][N];   long long ans, f[10];   inline void Dfs(int k, int d) {     ans += f[d];     if (ans > MOD) ans -= MOD;     if (d > 5) return;     for (int i = k; i <= mid; i++)       if (v[i] && !g[d][i] && !g[d][m - i]) {         if (d < 5) {           for (int j = 0; j < m; j++) g[d + 1][j] = g[d][j];           for (int j = 0; j < m; j++)             if (g[d][j]) g[d + 1][mod[j + i]] = g[d + 1][mod[j + m - i]] = 1;         }         f[d + 1] = (f[d] * v[i]) % MOD;         Dfs(i + 1, d + 1);       }   }   int main() {     int x;     for (scanf( %d %d %d , &n, &m, &t); t--; v[((x) < (m - x) ? (x) : (m - x))]++)       scanf( %d , &x), x %= m;     mid = m / 2;     for (int i = 0; i <= 2 * m; i++) mod[i] = i % m;     f[0] = 1;     g[0][0] = 1;     Dfs(1, 0);     printf( %d n , (int)ans);     return 0;   }   