func_code_string: #include <bits/stdc++.h>   const int N = 200 + 10, MOD = 1000000007;   int n;   std::pair<int, int> poly[N];   long long sum[N];   inline long long Cross(const std::pair<int, int> &a,                          const std::pair<int, int> &b) {     return (long long)a.first * b.second - (long long)a.second * b.first;   }   int mem[N][N];   inline long long Area(int l, int r) {     return llabs(sum[r - 1] - sum[l - 1] + Cross(poly[r], poly[l]));   }   inline long long Area(const std::pair<int, int> &a,                         const std::pair<int, int> &b,                         const std::pair<int, int> &c) {     return llabs(Cross(a, b) + Cross(b, c) + Cross(c, a));   }   int Solve(int l, int r) {     int &res = mem[l][r];     if (~res) return res;     if (r - l < 2) return res = 1;     res = 0;     for (int i = l + 1; i < r; ++i) {       long long temp = Area(poly[l], poly[i], poly[r]);       if (temp && Area(l, i) + Area(i, r) + temp == Area(l, r))         (res += (long long)Solve(l, i) * Solve(i, r) % MOD) %= MOD;     }     return res;   }   int main() {     scanf( %d , &n);     for (int i = 1; i <= n; ++i) scanf( %d%d , &poly[i].first, &poly[i].second);     for (int i = 1; i <= n; ++i)       sum[i] = sum[i - 1] + Cross(poly[i], poly[i % n + 1]);     memset(mem, -1, sizeof mem);     printf( %d n , Solve(1, n));     return 0;   }   