func_code_string: #include <bits/stdc++.h>   using namespace std;   const double eps = 1.0e-8;   const int maxn = 1e6 + 10;   const int maxm = 300;   const int turn[4][2] = {{1, 0}, {-1, 0}, {0, 1}, {0, -1}};   long long mod = 1e9 + 7;   vector<int> tree[10005];   int ans[10005];   int anser = 0;   void dfs(int x, int pre, int c) {     int cur = c;     if (c != ans[x]) {       anser++, cur = ans[x];     }     int len = tree[x].size();     for (int i = 0; i < len; i++) {       int to = tree[x][i];       if (to == pre) {         continue;       }       dfs(to, x, cur);     }   }   int main() {     int n;     int now;     cin >> n;     for (int i = 2; i <= n; i++) {       cin >> now;       tree[now].push_back(i);       tree[i].push_back(now);     }     for (int i = 1; i <= n; i++) {       cin >> ans[i];     }     dfs(1, 0, 0);     cout << anser << endl;   }   