//Validation (Tree Xor Query) #include #include "testlib.h" using namespace std; using ll=long long; struct Union_Find { std::vector parent; std::vector rank; int N; Union_Find(int n) { N = n; parent = std::vector(N, -1); rank = std::vector(N, 0); } int find(int x) { if (parent[x] < 0) return x; return parent[x] = find(parent[x]); } int size(int x) { return -parent[find(x)]; } void unite(int x, int y) { x = find(x); y = find(y); if (x == y) return; if (parent[x] > parent[y]) std::swap(x, y); parent[x] += parent[y]; parent[y] = x; return; } bool same(int x, int y) { return find(x) == find(y); } int group_count() { int K = 0; for (int i = 0; i < N; i++) { if (parent[i] < 0) K++; } return K; } std::vector members(int x) { std::vector v(0); int r= find(x); for (int i = 0; i < N; i++) { if (find(i) == r) v.push_back(i); } return v; } }; int main(){ registerValidation(); int N=inf.readInt(2,100000); inf.readSpace(); int Q=inf.readInt(1,100000); inf.readEoln(); int value_max=1024-1; vector C=inf.readIntegers(N,0,value_max); inf.readEoln(); Union_Find U(N+1); int a,b; for (int i=1; i<=N-1; i++){ a=inf.readInt(1,N); inf.readSpace(); b=inf.readInt(1,N); inf.readEoln(); ensure(!U.same(a,b)); U.unite(a,b); } ensure(U.group_count()==2); bool flag=false; int T,x,y; for (int q=1; q<=Q; q++){ T=inf.readInt(1,2); inf.readSpace(); x=inf.readInt(1,N); inf.readSpace(); y=inf.readInt(0,value_max); inf.readEoln(); if (T==2){ flag=true; ensure(y==0); } } ensure(flag); inf.readEof(); return 0; }