제출 #1028537

#제출 시각아이디문제언어결과실행 시간메모리
1028537May27_thBubble Sort 2 (JOI18_bubblesort2)C++17
0 / 100
1163 ms5516 KiB
#include<bits/stdc++.h> using namespace std; #define i64 long long #define i128 __int128 #define mp make_pair #define pb push_back #define all(x) (x).begin(), (x).end() i64 a[300005]; struct Tree { const i64 INF = 1e18; struct Data { i64 lf, rg, ans; }; vector<Data> st; Tree (int _N) : st(4 * _N + 4) {} Data combine(Data lf, Data rg) { Data res; res.lf = lf.lf; res.rg = rg.rg; res.ans = lf.ans + rg.ans + (lf.rg > rg.lf); return res; } void build(int id, int l, int r, vector<int> a) { if (l == r) { st[id].lf = st[id].rg = a[l - 1]; st[id].ans = 0; return; } int mid = (l + r)/2; build(id * 2, l, mid, a); build(id * 2 + 1, mid + 1, r, a); st[id] = combine(st[id * 2], st[id * 2 + 1]); } void update(int id, int l, int r, int p, i64 x) { if (p < l || p > r) return; if (l == r) { st[id].lf = st[id].rg = x; st[id].ans = 0; return; } int mid = (l + r)/2; update(id * 2, l, mid, p, x); update(id * 2 + 1, mid + 1, r, p, x); st[id] = combine(st[id * 2], st[id * 2 + 1]); } Data get(int id, int l, int r, int u, int v) { if (v < l || u > r) return {-INF, INF, 0}; if (u <= l && r <= v) return st[id]; int mid = (l + r)/2; return combine(get(id * 2, l, mid, u, v), get(id * 2 + 1, mid + 1, r, u, v)); } }; vector<int> countScans(vector<int> a, vector<int> x, vector<int> v) { int N = a.size(); int Q = x.size(); Tree T(N + 2); vector<int> ans; T.build(1, 1, N, a); for (int i = 0; i < Q; i ++) { a[++ x[i]] = v[i]; T.update(1, 1, N, x[i], a[x[i]]); ans.pb(T.st[1].ans); } return ans; } void Solve(void) { // int N, Q; cin >> N >> Q; // Tree T(N + 2); // for (int i = 1; i <= N; i ++) cin >> a[i]; // T.build(1, 1, N); // // cout << T.st[1].ans << "\n"; // while (Q --) { // int x, v; cin >> x >> v; // a[++ x] = v; // T.update(1, 1, N, x, a[x]); // // cout << x << " " << a[x] << "\n"; // cout << T.st[1].ans << "\n"; // } } // signed main() { // ios_base::sync_with_stdio(false); cin.tie(0); // cout << fixed << setprecision(10); // int Tests = 1; // cin >> Tests; // while (Tests --) { // Solve(); // } // }
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