結果
| 問題 |
No.2292 Interval Union Find
|
| コンテスト | |
| ユーザー |
|
| 提出日時 | 2023-08-21 21:20:16 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 368 ms / 5,000 ms |
| コード長 | 4,121 bytes |
| コンパイル時間 | 4,513 ms |
| コンパイル使用メモリ | 263,140 KB |
| 最終ジャッジ日時 | 2025-02-16 12:07:24 |
|
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 4 |
| other | AC * 44 |
ソースコード
#include <bits/stdc++.h>
#include <atcoder/all>
#define SELECTER(_1,_2,_3,SELECT,...) SELECT
#define rep1(i,n) for(int i=0;i<(int)n;++i)
#define rep2(i,a,n) for(int i=(int)a;i<(int)n;++i)
#define rep(...) SELECTER(__VA_ARGS__,rep2,rep1)(__VA_ARGS__)
#define RSELECTER(_1, _2, _3, RSELECT, ...) RSELECT
#define rrep1(i,n) for(int i=(int)n-1;i>=0;--i)
#define rrep2(i,a,n) for(int i=(int)n-1;i>=(int)a;--i)
#define rrep(...) RSELECTER(__VA_ARGS__, rrep2, rrep1)(__VA_ARGS__)
#define all(a) a.begin(),a.end()
#define rall(a) a.rbegin(),a.rend()
#define fi first
#define se second
#define PrintR LogOutput
#ifdef _DEBUG
#define Log(...) LogOutput(__VA_ARGS__)
#else
#define Log(...)
#endif
using namespace std;
using namespace atcoder;
using ll=long long;
using pii=pair<int,int>;
using pll=pair<long long,long long>;
using pdd=pair<long double,long double>;
using veci=vector<int>;
using vecpii=vector<pair<int,int>>;
using vecll=vector<long long>;
using vecpll=vector<pair<long long,long long>>;
using vecpdd=vector<pair<long double,long double>>;
using vecs=vector<string>;
using vecb=vector<bool>;
using vecd=vector<long double>;
using tp=tuple<int,int,int>;
using tpll=tuple<ll,ll,ll>;
using mint=modint998244353;
using mint10=modint1000000007;
template<typename T, typename S>
istream& operator>>(istream& in, pair<T, S>& a){return in >> a.first >> a.second;}
template<typename T, typename S>
ostream& operator<<(ostream& out, const pair<T, S>& a){return out << a.first << ' ' << a.second;}
ostream& operator<<(ostream& out, const mint& a){return out << a.val();}
ostream& operator<<(ostream& out, const mint10& a){return out << a.val();}
ostream& operator<<(ostream& out, const modint& a){return out << a.val();}
template<typename T>
ostream& operator<<(ostream& out, const vector<T>& d){for(int i = 0 ; i < d.size() ; ++i) out << d[i] << (i == d.size() - 1 ? "" : " "); return out;}
template<typename T, typename S>
pair<T, S> operator+(const pair<T, S>& a, const pair<T, S>& b){return {a.fi + b.fi, a.se + b.se};}
template<typename T, typename S>
pair<T, S> operator-(const pair<T, S>& a, const pair<T, S>& b){return {a.fi - b.fi, a.se - b.se};}
template<class T> inline bool chmax(T& a,T b){if(a<b) {a=b;return true;} return false;}
template<class T> inline bool chmin(T& a,T b){if(a>b) {a=b;return true;} return false;}
bool Judge(int i, int j, int h, int w){return i < 0 || j < 0 || i >= h || j >= w;}
constexpr ll INF=numeric_limits<ll>::max() / 4;
constexpr ll MOD=998244353;
const int vi[] = {0, 1, 0, -1}, vj[] = {1, 0, -1, 0};
template<typename... Args>
void LogOutput(Args&&... args){
stringstream ss;
((ss << args << ' '), ...);
cout << ss.str().substr(0, ss.str().length() - 1) << endl;
}
template<typename T>
void LogOutput(vector<vector<T>>& data){for(auto d : data) LogOutput(d);}
int main(){
ios::sync_with_stdio(false);
std::cin.tie(nullptr);
int n, q;cin>>n>>q;
vector<tp> a(q);
veci t;
for(auto& [b, c, d] : a){
cin>>b>>c;
t.push_back(c);
if(b != 4){
cin>>d;
t.push_back(d);
}else d = 1e9;
}
sort(all(t));
t.erase(unique(all(t)), t.end());
set<pii> st;
rep(i, q){
auto [ty, l2, r2] = a[i];
if(r2 < l2) swap(l2, r2);
int l = lower_bound(all(t), l2) - t.begin();
if(ty == 1 || ty == 2){
int r = lower_bound(all(t), r2) - t.begin();
int _max = r, _min = l;
while(st.size()){
auto it = st.lower_bound(pii{l, 0});
if(it == st.end()) break;
if(it->se > r) break;
chmax(_max, it->fi);
chmin(_min, it->se);
st.erase(it);
}
if(ty == 1) st.emplace(_max, _min);
else{
st.emplace(l, _min);
st.emplace(_max, r);
}
}else if(ty == 3){
if(l2 == r2){
cout<<1<<endl;
continue;
}
if(st.empty()){
cout<<0<<endl;
continue;
}
int r = lower_bound(all(t), r2) - t.begin();
auto it = st.lower_bound(pii{r, 0});
if(it == st.end()) cout<<0<<endl;
else cout<<(it->se <= l)<<endl;
}else{
if(st.empty()){
cout<<1<<endl;
continue;
}
auto it = st.lower_bound(pii{l, 0});
if(it == st.end() || it->se > l) cout<<1<<endl;
else cout<<t[it->fi] - t[it->se] + 1<<endl;
}
}
}