func_code_string: #include <bits/stdc++.h>   using namespace std;   const long long INF = 1e9;   const long long MOD = 1e9 + 7;   const int MAXN = 705;   const int bignumlen = 17;   const int Blen = 8;   const long long base = 100000000;   struct bignum {     int len;     long long data[bignumlen];     long long &operator[](int x) { return (data[x]); }     const long long &operator[](int x) const { return (data[x]); }     bignum() {       memset(data, 0, sizeof(data));       len = 0;     }     void clear() {       for (int i = len; i >= 1; --i) data[i] = 0;       len = 0;     }     int check(const bignum &a, const bignum &b) {       if (a.len > b.len) return (0);       if (b.len > a.len) return (1);       for (int i = a.len; i >= 1; --i) {         if (a.data[i] < b.data[i]) return (1);         if (b.data[i] < a.data[i]) return (0);       }       return 2;     }     bool operator<(const bignum &b) { return (check(*this, b) == 1); }     bool operator>(const bignum &b) { return (check(*this, b) == 0); }     bool operator<=(const bignum &b) { return (check(*this, b) >= 1); }     bool operator>=(const bignum &b) { return (check(*this, b) % 2 == 0); }     bool operator!=(const bignum &b) { return (check(*this, b) != 2); }     bool operator==(const bignum &b) { return (check(*this, b) == 2); }     bignum operator=(const bignum &x) {       for (int i = x.len + 1; i <= len; ++i) data[i] = 0;       for (int i = 1; i <= x.len; ++i) data[i] = x.data[i];       len = x.len;       return *this;     }     bignum operator=(long long x) {       for (int i = len; i >= 0; --i) data[i] = 0;       len = 0;       while (x) {         data[++len] = x % base;         x /= base;       }       return *this;     }     bignum(long long x) {       memset(data, 0, sizeof(data));       len = 0;       (*this) = x;     }     bignum operator*(const bignum &b) {       int i, j;       bignum tmp;       for (i = 1; i <= len; ++i)         if (data[i] != 0)           for (j = 1; j <= b.len; ++j)             if (b.data[j] != 0) {               tmp.data[i + j - 1] += data[i] * b.data[j];               tmp.data[i + j] += tmp.data[i + j - 1] / base;               tmp.data[i + j - 1] %= base;             }       tmp.len = len + b.len - 1;       while (tmp.data[tmp.len + 1]) tmp.len++;       return tmp;     }     bignum operator*(long long x) {       int i;       bignum tmp;       for (i = 1; i <= len; ++i) tmp[i] = data[i] * x;       tmp.len = len;       for (i = 1; i <= len; ++i) {         tmp[i + 1] += tmp[i] / base, tmp[i] %= base;         if (tmp[i + 1] && i + 1 > tmp.len) tmp.len++;       }       return tmp;     }     bignum operator/(long long x) {       int i;       bignum tmp;       long long y = 0;       for (i = len; i >= 1; --i) {         y = y * base + data[i];         tmp[i] = y / x;         y %= x;       }       tmp.len = len;       while (tmp[tmp.len] == 0 && tmp.len > 1) tmp.len--;       return tmp;     }     bignum operator/(const bignum &b) {       if (b.len <= 1 && b[1] == 0) {         printf( error! ?0?! );         for (;;)           ;       }       int i, l1 = (len - 1) * Blen, l2 = (b.len - 1) * Blen;       long long x = data[len], y = b[b.len];       while (x) x /= 10, l1++;       while (y) y /= 10, l2++;       bignum tmp, chu, B;       chu = *this;       B = b;       for (i = 1; i * Blen <= l1 - l2; ++i) B *= base;       for (i = 1; i <= (l1 - l2) % Blen; ++i) B *= 10;       for (i = l1 - l2; i >= 0; --i) {         x = 0;         while (chu >= B) chu -= B, x++;         tmp[i / Blen + 1] = tmp[i / Blen + 1] * 10 + x;         B /= 10;       }       tmp.len = (l1 - l2) / Blen + 1;       while (tmp.len >= 1 && !tmp[tmp.len]) tmp.len--;       return tmp;     }     bignum operator+(const bignum &b) {       bignum tmp;       int i, l = max(len, b.len);       for (i = 1; i <= l; ++i) tmp[i] = data[i] + b[i];       for (i = 1; i <= l; ++i) tmp[i + 1] += tmp[i] / base, tmp[i] %= base;       tmp.len = l;       if (tmp[tmp.len + 1]) tmp.len++;       return tmp;     }     bignum operator+(long long x) {       bignum tmp;       tmp = *this;       tmp[1] += x;       for (int i = 1; i <= len && tmp[i] >= base; ++i)         tmp[i + 1] += tmp[i] / base, tmp[i] %= base;       while (tmp[tmp.len + 1]) tmp.len++;       return tmp;     }     bignum operator-(const bignum &b) {       int i;       bignum tmp;       for (i = 1; i <= len; ++i) tmp.data[i] = data[i] - b.data[i];       for (i = 1; i <= len; ++i) {         if (tmp[i] < 0) tmp.data[i] += base, tmp.data[i + 1]--;       }       tmp.len = len;       while (tmp[tmp.len] == 0 && tmp.len > 1) tmp.len--;       return tmp;     }     bignum operator-(long long x) {       bignum tmp;       tmp = *this;       tmp[1] -= x;       for (int i = 1; i <= len && tmp[i] < 0; ++i) {         tmp[i + 1] += (tmp[i] + 1) / base - 1;         tmp[i] = (tmp[i] + 1) % base + base - 1;       }       while (!tmp[tmp.len] && tmp.len > 1) tmp.len--;       return tmp;     }     long long operator%(long long x) {       int i;       long long y = 0;       for (i = len; i >= 1; --i) y = (y * base + data[i]) % x;       return y;     }     bignum operator%(const bignum &b) {       if (b.len <= 1 && b[1] == 0) {         printf( error! ?0 mod! );         for (;;)           ;       }       int i, l1 = (len - 1) * Blen, l2 = (b.len - 1) * Blen;       long long x = data[len], y = b[b.len];       while (x) x /= 10, l1++;       while (y) y /= 10, l2++;       bignum chu, B;       chu = *this;       B = b;       for (i = 1; i * Blen <= l1 - l2; ++i) B *= base;       for (i = 1; i <= (l1 - l2) % Blen; ++i) B *= 10;       for (i = l1 - l2; i >= 0; --i) {         while (chu >= B) chu -= B;         B /= 10;       }       return chu;     }     bignum operator+=(const bignum &b) { return *this = (*this + b); }     bignum operator*=(const bignum &b) { return *this = (*this * b); }     bignum operator-=(const bignum &b) { return *this = (*this - b); }     bignum operator/=(const bignum &b) { return *this = (*this / b); }     bignum operator%=(const bignum &b) { return *this = (*this % b); }     bignum operator*=(long long x) { return (*this = (*this * x)); }     bignum operator+=(long long x) { return (*this = (*this + x)); }     bignum operator-=(long long x) { return (*this = (*this - x)); }     bignum operator/=(long long x) { return (*this = (*this / x)); }     void read() {       char c[bignumlen * Blen + 10];       scanf( %s , c + 1);       int l = strlen(c + 1);       (*this).clear();       long long x;       for (int i = 1; i <= (l - 1) / Blen + 1; ++i) {         x = 0;         for (int j = l - Blen * i + 1; j <= l - Blen * i + Blen; ++j)           if (j >= 1) x = x * 10 + c[j] - 48;         data[++len] = x;       }     }     void write() {       printf( %I64d , data[len]);       for (int i = len - 1; i >= 1; --i) printf( %0*I64d , Blen, data[i]);     }   };   int n;   vector<bignum> DP[MAXN];   vector<int> v[MAXN];   int sz[MAXN];   int dfs(int now, int p) {     DP[now].push_back(0);     DP[now].push_back(1);     sz[now] = 1;     for (int ea = 0; ea < v[now].size(); ea++) {       int sek = v[now][ea];       if (sek == p) continue;       sz[now] += dfs(sek, now);       vector<bignum> ans(MAXN);       for (int j = 0; j < MAXN; j++) ans[j] = -1;       for (int i = 1; i <= DP[now].size() - 1; i++) {         for (int j = 1; j <= DP[sek].size() - 1; j++) {           bignum tmp = DP[now][i] / i * DP[sek][j] / j * (i + j);           if (tmp > ans[i + j]) ans[i + j] = tmp;           tmp = DP[now][i] * DP[sek][j];           if (tmp > ans[i]) ans[i] = tmp;         }       }       ans[0] = 0;       DP[now].clear();       for (int j = 0; j < MAXN; j++) {         if (ans[j] == -1) break;         DP[now].push_back(ans[j]);       }     }     return sz[now];   }   int main() {     ios::sync_with_stdio(0);     cin.tie(0);     cin >> n;     for (int i = 0; i < n - 1; i++) {       int a, b;       cin >> a >> b;       a--, b--;       v[a].push_back(b);       v[b].push_back(a);     }     dfs(0, -1);     bignum res = DP[0][1];     for (int i = 2; i <= DP[0].size() - 1; i++)       if (DP[0][i] > res) res = DP[0][i];     res.write();   }   