結果
| 問題 |
No.2901 Logical Sum of Substring
|
| コンテスト | |
| ユーザー |
👑 potato167
|
| 提出日時 | 2024-09-20 22:16:00 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 412 ms / 3,000 ms |
| コード長 | 4,077 bytes |
| コンパイル時間 | 2,118 ms |
| コンパイル使用メモリ | 203,384 KB |
| 最終ジャッジ日時 | 2025-02-24 10:18:21 |
|
ジャッジサーバーID (参考情報) |
judge2 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 30 |
ソースコード
#include <bits/stdc++.h>
using namespace std;
using std::cout;
using std::cin;
using std::endl;
using ll=long long;
using ld=long double;
const ll ILL=2167167167167167167;
const int INF=2100000000;
#define rep(i,a,b) for (int i=(int)(a);i<(int)(b);i++)
#define all(p) p.begin(),p.end()
template<class T> using _pq = priority_queue<T, vector<T>, greater<T>>;
template<class T> ll LB(vector<T> &v,T a){return lower_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> ll UB(vector<T> &v,T a){return upper_bound(v.begin(),v.end(),a)-v.begin();}
template<class T> bool chmin(T &a,T b){if(a>b){a=b;return 1;}else return 0;}
template<class T> bool chmax(T &a,T b){if(a<b){a=b;return 1;}else return 0;}
template<class T> void So(vector<T> &v) {sort(v.begin(),v.end());}
template<class T> void Sore(vector<T> &v) {sort(v.begin(),v.end(),[](T x,T y){return x>y;});}
bool yneos(bool a,bool upp=0){if(a){cout<<(upp?"YES\n":"Yes\n");}else{cout<<(upp?"NO\n":"No\n");}return a;}
template<class T> void vec_out(vector<T> &p,int ty=0){
if(ty==2){cout<<'{';for(int i=0;i<(int)p.size();i++){if(i){cout<<",";}cout<<'"'<<p[i]<<'"';}cout<<"}\n";}
else{if(ty==1){cout<<p.size()<<"\n";}for(int i=0;i<(int)(p.size());i++){if(i) cout<<" ";cout<<p[i];}cout<<"\n";}}
template<class T> T vec_min(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmin(ans,x);return ans;}
template<class T> T vec_max(vector<T> &a){assert(!a.empty());T ans=a[0];for(auto &x:a) chmax(ans,x);return ans;}
template<class T> T vec_sum(vector<T> &a){T ans=T(0);for(auto &x:a) ans+=x;return ans;}
int pop_count(long long a){int res=0;while(a){res+=(a&1),a>>=1;}return res;}
template<class T> bool inside(T l,T x,T r){return l<=x&&x<r;}
#include <atcoder/segtree>
using F = array<pair<int, int>, 18>;
int K;
struct S{
int ans = INF;
int l = -1;
int r = -1;
F dpl, dpr;
};
S op(S l, S r){
if (l.l == -1) return r;
if (r.l == -1) return l;
// upd ans
chmin(l.ans, r.ans);
rep(i, 0, 17) rep(j, 0, 17){
if ((l.dpr[i].first | r.dpl[j].first) == (1 << K) - 1){
chmin(l.ans, r.dpl[j].second - l.dpr[i].second);
}
}
// upd dpl
int ind = 0;
while (l.dpl[ind].second != -1) ind++;
rep(i, 0, 17) if (r.dpl[i].second != -1){
if ((l.dpl[ind - 1].first | r.dpl[i].first) != l.dpl[ind - 1].first){
l.dpl[ind].first = (l.dpl[ind - 1].first | r.dpl[i].first);
l.dpl[ind].second = r.dpl[i].second;
ind++;
}
}
// upd dpr
ind = 0;
while (r.dpr[ind].second != -1) ind++;
rep(i, 0, 17) if (l.dpr[i].second != -1){
if ((r.dpr[ind - 1].first | l.dpr[i].first) != r.dpr[ind - 1].first){
r.dpr[ind].first = (r.dpr[ind - 1].first | l.dpr[i].first);
r.dpr[ind].second = l.dpr[i].second;
ind++;
}
}
l.dpr = r.dpr;
l.r = r.r;
return l;
}
S e(){
S tmp;
rep(i, 0, 17){
tmp.dpl[i] = {(1 << 20), -1};
tmp.dpr[i] = {(1 << 20), -1};
}
return tmp;
}
void solve();
// CYAN / FREDERIC
int main() {
ios::sync_with_stdio(false);
cin.tie(nullptr);
int t = 1;
// cin >> t;
rep(i, 0, t) solve();
}
void solve(){
int N;
cin >> N >> K;
vector<int> A(N);
rep(i, 0, N) cin >> A[i];
vector<S> base(N, e());
rep(i, 0, N){
base[i].l = i, base[i].r = i + 1;
base[i].dpl[0] = {A[i], i + 1};
base[i].dpr[0] = {A[i], i};
if (A[i] + 1 == (1 << K)) base[i].ans = 1;
}
atcoder::segtree<S, op, e> seg(base);
int Q;
cin >> Q;
while (Q--){
int t, x, y;
cin >> t >> x >> y;
if (t == 1){
x--;
base[x].dpl[0] = {y, x + 1};
base[x].dpr[0] = {y, x};
if (y + 1 == (1 << K)) base[x].ans = 1;
else base[x].ans = INF;
seg.set(x, base[x]);
}
else{
x--;
auto tmp = seg.prod(x, y);
if (tmp.ans != INF) cout << tmp.ans << "\n";
else cout << "-1\n";
}
}
}
potato167