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| #include <bits/stdc++.h> using namespace std;
const int MaxN = 150010;
struct edge { int to, next; };
struct node { int l, r; int sum, tag; };
struct SegmentTree { node t[MaxN << 1]; inline void pushup(int id) { t[id].sum = t[id << 1].sum + t[id << 1 | 1].sum; } void build(int id, int l, int r) { t[id].l = l, t[id].r = r, t[id].tag = -1; if (l == r) return; int mid = (l + r) >> 1; build(id << 1, l, mid); build(id << 1 | 1, mid + 1, r); } inline void pushdown(int id) { if (t[id].tag != -1) { t[id << 1].sum = t[id].tag * (t[id << 1].r - t[id << 1].l + 1); t[id << 1 | 1].sum = t[id].tag * (t[id << 1 | 1].r - t[id << 1 | 1].l + 1);
t[id << 1].tag = t[id].tag; t[id << 1 | 1].tag = t[id].tag;
t[id].tag = -1; } } inline void modify(int id, int l, int r, int delta) { if (l > t[id].r || t[id].l > r) return; if (l <= t[id].l && t[id].r <= r) { t[id].sum = delta * (t[id].r - t[id].l + 1); t[id].tag = delta; return; } if (t[id].l == t[id].r) return; pushdown(id); modify(id << 1, l, r, delta); modify(id << 1 | 1, l, r, delta); pushup(id); return; } inline int query(int id, int l, int r) { if (l > t[id].r || t[id].l > r) return 0; if (l <= t[id].l && t[id].r <= r) return t[id].sum; if (t[id].l == t[id].r) return 0; pushdown(id); return query(id << 1, l, r) + query(id << 1 | 1, l, r); } } T;
edge e[MaxN << 1]; int n, m, cnt, dfsnum, size[MaxN], hson[MaxN]; int head[MaxN], top[MaxN], dfn[MaxN], fa[MaxN], dep[MaxN];
inline void add_edge(int u, int v) { ++cnt; e[cnt].to = v; e[cnt].next = head[u]; head[u] = cnt; }
inline void dfs1(int u, int f) { size[u] = 1; for (int i = head[u]; i; i = e[i].next) { int v = e[i].to; if (v == f) continue; dep[v] = dep[u] + 1; fa[v] = u; dfs1(v, u); size[u] += size[v]; if (size[v] > size[hson[u]]) hson[u] = v; } }
inline void dfs2(int u, int Top) { ++dfsnum; dfn[u] = dfsnum; top[u] = Top; if (hson[u]) dfs2(hson[u], Top); for (int i = head[u]; i; i = e[i].next) { int v = e[i].to; if (v == hson[u] || v == fa[u]) continue; dfs2(v, v); } }
inline int read() { int x = 0; char ch = getchar(); while (ch > '9' || ch < '0') ch = getchar(); while (ch <= '9' && ch >= '0') x = (x << 1) + (x << 3) + (ch ^ 48), ch = getchar(); return x; }
inline void update_tree(int u) { T.modify(1, dfn[u], dfn[u] + size[u] - 1, 0); }
inline void update_chain(int u, int v, int delta) { while (top[u] != top[v]) { if (dep[top[u]] < dep[top[v]]) swap(u, v); T.modify(1, dfn[top[u]], dfn[u], delta); u = fa[top[u]]; } if (dep[u] < dep[v]) swap(u, v); T.modify(1, dfn[v], dfn[u], delta); }
signed main() { n = read(); for (int i = 2; i <= n; ++i) { int u = read() + 1; add_edge(i, u); add_edge(u, i); } dep[1] = 1, fa[1] = 0; dfs1(1, 0), dfs2(1, 1); T.build(1, 1, n); m = read(); for (int i = 1; i <= m; i++) { string op; cin >> op; int before = T.t[1].sum; if (op == "install") { int u = read() + 1; update_chain(u, 1, 1); int after = T.t[1].sum; printf("%d\n", after - before); } else { int u = read() + 1; update_tree(u); int after = T.t[1].sum; printf("%d\n", before - after); } } return 0; }
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