#include <iostream>
#include <string>
#include <vector>
#include <queue>
#include <stack>
#include <algorithm>
#include <numeric>
#include <map>
#include <unordered_map>
#include <set>
#include <cstring>
#include <cmath>
#include <iomanip>
#include <cassert>
#include <random>
#include <cstdlib>
#define debug(x) std::cout << #x << " " << (x) << '\n';
#define pb push_back
#define mp std::make_pair
#define remax(a, b) a = std::max((a), (b));
#define remin(a, b) a = std::min((a), (b));
const int32_t MAX_N = 2e5;
const int32_t LOG_MAX_N = 19;
const int32_t BUCKET = 600;
struct Vertex {
int32_t milletH;
int32_t dep, inTime, outTime;
std::vector< Vertex* > adj;
Vertex *ancs[LOG_MAX_N + 5];
Vertex() {
for(int32_t i = 0; i <= LOG_MAX_N; i++) {
ancs[i] = nullptr;
}
}
};
Vertex g[MAX_N + 5];
void precompute_parents(Vertex *v, int32_t dep, Vertex *parent, int32_t &t) {
v->dep = dep;
v->ancs[0] = parent;
v->inTime = t++;
for(auto &u : v->adj) {
if(u != parent) {
precompute_parents(u, dep + 1, v, t);
}
}
v->outTime = t++;
}
void precompute_ancestors(int32_t n) {
for(int32_t j = 1; j <= LOG_MAX_N; j++) {
for(int32_t i = 1; i <= n; i++) {
if(g[i].ancs[j - 1] != nullptr) {
g[i].ancs[j] = g[i].ancs[j - 1]->ancs[j - 1];
}
}
}
}
bool isAnc(Vertex *v, Vertex *u) {
return (v->inTime <= u->inTime && v->outTime >= u->outTime);
}
Vertex *getLca(Vertex *v, Vertex *u) {
if(isAnc(v, u)) return v;
if(isAnc(u, v)) return u;
for(int32_t i = LOG_MAX_N; i >= 0; i--) {
if(v->ancs[i] != nullptr && !isAnc(v->ancs[i], u)) {
v = v->ancs[i];
}
}
return v->ancs[0];
}
int32_t getDistance(Vertex *v, Vertex *u) {
auto lca = getLca(v, u);
return v->dep + u->dep - 2 * lca->dep;
}
void update(int32_t n, int32_t l, std::vector< std::tuple< int32_t, int32_t, int32_t > > updates) {
// TODO
}
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
int32_t n, l;
std::cin >> n >> l;
for(int32_t i = 0; i < n - 1; i++) {
int32_t u, v;
std::cin >> u >> v;
g[u].adj.push_back(&g[v]);
g[v].adj.push_back(&g[u]);
}
int32_t t = 0;
precompute_parents(&g[1], 0, nullptr, t);
precompute_ancestors(n);
/**
for(int32_t i = 1; i <= n; i++) {
for(int32_t j = i; j <= n; j++) {
std::cout << i << ", " << j << ": " << getDistance(&g[i], &g[j]) << std::endl;
}
}
return 0;
*/
for(int32_t i = 1; i <= n; i++) {
std::cin >> g[i].milletH;
}
int32_t q;
std::cin >> q;
std::vector< std::tuple< int32_t, int32_t, int32_t > > notUpdated;
for(int32_t i = 0; i < q; i++) {
int32_t type;
std::cin >> type;
if(type == 1) {
int32_t x, d, w;
std::cin >> x >> d >> w;
notUpdated.push_back(std::make_tuple(x, d, w));
if((int32_t) notUpdated.size() > BUCKET) {
update(n, l, notUpdated);
}
}
else {
int32_t x;
std::cin >> x;
int32_t updatedValue = g[x].milletH;
for(auto &a : notUpdated) {
int32_t dist = getDistance(&g[x], &g[get<0>(a)]);
if(dist <= get<1>(a)) {
updatedValue = ((int64_t) updatedValue * get<2>(a)) % l;
}
}
std::cout << updatedValue << '\n';
}
}
}
Compilation message
sprinkler.cpp: In function 'int main()':
sprinkler.cpp:149:42: error: 'get' was not declared in this scope; did you mean 'std::get'?
149 | int32_t dist = getDistance(&g[x], &g[get<0>(a)]);
| ^~~
| std::get
In file included from /usr/include/c++/10/functional:54,
from /usr/include/c++/10/pstl/glue_algorithm_defs.h:13,
from /usr/include/c++/10/algorithm:74,
from sprinkler.cpp:6:
/usr/include/c++/10/tuple:1357:5: note: 'std::get' declared here
1357 | get(const tuple<_Types...>&& __t) noexcept
| ^~~
