結果
| 問題 | No.1054 Union add query |
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2024-06-21 01:59:17 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 824 ms / 2,000 ms |
| コード長 | 3,400 bytes |
| コンパイル時間 | 2,136 ms |
| コンパイル使用メモリ | 152,468 KB |
| 実行使用メモリ | 50,364 KB |
| 最終ジャッジ日時 | 2024-06-21 01:59:27 |
| 合計ジャッジ時間 | 9,328 ms |
|
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 8 |
ソースコード
#include <algorithm>
#include <cassert>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <iostream>
#include <numeric>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <functional>
#include <iomanip>
#include <type_traits>
using namespace std;
using ll = long long;
class range {private: struct I{int x;int operator*(){return x;}bool operator!=(I& lhs){return x<lhs.x;}void operator++(){++x;}};I i,n;
public:range(int n_):i({0}),n({n_}){}range(int i_,int n_):i({i_}),n({n_}){}I& begin(){return i;}I& end(){return n;}};
template<typename T, typename U> ostream& operator<<(ostream& os, const pair<T, U>& p){ return os << "{" << p.first << ", " << p.second << "}"; }
template<typename T> ostream& operator<<(ostream& os, const vector<T>& obj) { os << "{"; for (const auto& e : obj) os << e << ", "; return os << "}"; }
template<typename T> ostream& operator<<(ostream& os, const set<T>& obj) { os << "set{"; for (const auto& e : obj) os << e << ", "; return os << "}"; }
template<typename T, typename U> ostream& operator<<(ostream& os, const map<T, U>& obj) { os << "map{"; for (const auto& e : obj) os << e << ", "; return os << "}"; }
#ifdef ONLINE_JUDGE
#define dump(expr) ;
#else
#define dump(expr) { cerr << "\033[33m#L" << __LINE__ << ": " << expr << "\033[39m" << endl; }
#endif
struct UnionFindWithWeights {
vector<int> data, weights;
vector<vector<ll>> members;
vector<ll> adding;
vector<ll> vals;
UnionFindWithWeights(int n) : data(n, -1), weights(n, 1) {
members.resize(n);
for (int i : range(n)) members[i].push_back(i);
adding.assign(n, 0);
vals.assign(n, 0);
}
int root(int x) { return data[x] < 0 ? x : data[x] = root(data[x]); }
bool find(int x, int y) { return root(x) == root(y); }
void uni(int x, int y) {
x = root(x);
y = root(y);
if (x != y) {
int x0 = x, y0 = y;
if (weights[x0] < weights[y0]) swap(x0, y0);
int new_weight = weights[x] + weights[y];
data[y0] = x0;
weights[x0] = new_weight;
for (auto& m : members[y0]) vals[m] += adding[y0] - adding[x0];
members[x0].insert(members[x0].end(), members[y0].begin(), members[y0].end());
}
}
int weight(int x) { return weights[root(x)]; }
};
namespace solver {
int n, q;
vector<int> ts, as, bs;
void read() {
cin >> n >> q;
ts.resize(q);
as.resize(q);
bs.resize(q);
for (int i : range(q)) cin >> ts[i] >> as[i] >> bs[i];
}
using RetType = void;
RetType run() {
UnionFindWithWeights uf(n + 1);
for (int i : range(q)) {
int t = ts[i], a = as[i], b = bs[i];
dump("Q " << t << " " << a << " " << b);
dump("MEM " << uf.members);
dump("VAL " << uf.vals);
dump("ADD " << uf.adding);
if (t == 1) uf.uni(a, b);
if (t == 2) {
a = uf.root(a);
dump("ROOT " << a << " " << b);
uf.adding[a] += b;
}
if (t == 3) {
int root = uf.root(a);
ll val = uf.vals[a] + uf.adding[root];
cout << val << endl;
}
}
}
} // namespace
template <typename F>
void run(F f) { if constexpr (std::is_same_v<decltype(f()), void>) f(); else cout << f() << endl; }
int main(int argc, char** argv) {
cerr << fixed << setprecision(12);
cout << fixed << setprecision(12);
int testcase = 1;
if (argc > 1) testcase = atoi(argv[1]);
while (testcase--) {
solver::read();
}
run(solver::run);
}