結果
| 問題 |
No.3326 岩井星人の帰星
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2025-11-01 16:16:00 |
| 言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
TLE
|
| 実行時間 | - |
| コード長 | 3,053 bytes |
| コンパイル時間 | 3,342 ms |
| コンパイル使用メモリ | 289,212 KB |
| 実行使用メモリ | 9,936 KB |
| 最終ジャッジ日時 | 2025-11-01 16:16:11 |
| 合計ジャッジ時間 | 9,081 ms |
|
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | TLE * 2 -- * 57 |
ソースコード
#ifndef ONLINE_JUDGE
#define _GLIBCXX_DEBUG
#endif
#include <bits/stdc++.h>
using namespace std;
// #include <atcoder/all>
// using namespace atcoder;
using ll = long long; // 2^63-1まで 負の値は可
using ull = unsigned long long; // 0<= ull <=2^64-1の範囲 負の値は不可
using vl = vector<ll>;
using vvl = vector<vl>;
using P = pair<ll, ll>;
template <typename T>
using MNPQ = priority_queue<T, vector<T>, greater<T>>;
template <typename T>
using MXPQ = priority_queue<T, vector<T>, less<T>>;
#define rep(i, n) for (int i = 0; i < n; i++)
#define srep(i, s, n) for (int i = s; i < n; i++)
#define rrep(i, s, n) for (int i = s; i > n; i--)
#define chmax(x, y) x = max(x, y)
#define chmin(x, y) x = min(x, y)
#define nall(a) a.begin(), a.end()
#define rall(a) a.rbegin(), a.rend()
#define vunique(v) v.erase(unique(nall(v)), v.end())
#define IN(a, x) find(nall(a), x) != a.end()
#define YN(flg) cout << (flg ? "Yes" : "No") << "\n"
#define out_grid(x, y, h, w) !(0 <= x && x < h && 0 <= y && y < w)
#define lmd(...) [&](__VA_ARGS__)
#define debug(x) cerr << #x << " = " << x << endl;
const ll INF = 2e18;
template <typename T>
istream& operator>>(istream& is, vector<T>& a) {
for (auto& x : a) is >> x;
return is;
}
template <typename T>
ostream& operator<<(ostream& os, vector<T>& a) {
for (int i = 0; i < (int)a.size(); i++) os << a[i] << " ";
return os;
}
template <typename T1, typename T2>
ostream& operator<<(ostream& os, pair<T1, T2>& p) {
os << "{" << p.first << "," << p.second << "}";
return os;
}
template <typename K, typename V>
ostream& operator<<(ostream& os, map<K, V>& a) {
for (auto& [k, v] : a) os << "{key:" << k << ", item:" << v << "} ";
return os;
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(nullptr);
ll n, m;
cin >> n >> m;
vvl graph(n + 1);
rep(i, m) {
ll u, v;
cin >> u >> v;
graph[u].push_back(v);
graph[v].push_back(u);
}
vector<bool> ng(n + 1);
ll l;
cin >> l;
rep(_, l) {
ll j, k;
cin >> j >> k;
queue<ll> que;
vector<ll> dist(n + 1, INF);
que.emplace(j);
dist[j] = 0;
while (!que.empty()) {
auto v = que.front();
que.pop();
ng[v] = 1;
if (dist[v] == k) continue;
for (auto i : graph[v]) {
if (dist[i] != INF) continue;
dist[i] = dist[v] + 1;
que.emplace(i);
}
}
}
vector<ll> dist(n + 1, INF);
queue<ll> que;
dist[1] = 0;
que.emplace(1);
while (!que.empty()) {
auto v = que.front();
que.pop();
if (ng[v]) continue;
for (auto i : graph[v]) {
if (dist[i] != INF) continue;
dist[i] = dist[v] + 1;
que.emplace(i);
}
}
if (dist[n] != INF) {
cout << "Yes" << endl;
cout << dist[n] << endl;
} else {
cout << "No" << endl;
}
return 0;
}