結果
問題 | No.1031 いたずら好きなお姉ちゃん |
ユーザー | 🍮かんプリン |
提出日時 | 2020-10-20 15:56:20 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 159 ms / 3,500 ms |
コード長 | 4,540 bytes |
コンパイル時間 | 2,409 ms |
コンパイル使用メモリ | 196,972 KB |
実行使用メモリ | 12,416 KB |
最終ジャッジ日時 | 2024-07-21 08:22:46 |
合計ジャッジ時間 | 10,945 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge3 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 1 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 6 ms
5,376 KB |
testcase_04 | AC | 6 ms
5,376 KB |
testcase_05 | AC | 6 ms
5,376 KB |
testcase_06 | AC | 6 ms
5,376 KB |
testcase_07 | AC | 5 ms
5,376 KB |
testcase_08 | AC | 5 ms
5,376 KB |
testcase_09 | AC | 5 ms
5,376 KB |
testcase_10 | AC | 5 ms
5,376 KB |
testcase_11 | AC | 116 ms
10,368 KB |
testcase_12 | AC | 115 ms
10,368 KB |
testcase_13 | AC | 146 ms
11,520 KB |
testcase_14 | AC | 124 ms
10,624 KB |
testcase_15 | AC | 136 ms
11,136 KB |
testcase_16 | AC | 115 ms
10,496 KB |
testcase_17 | AC | 134 ms
11,136 KB |
testcase_18 | AC | 130 ms
11,008 KB |
testcase_19 | AC | 136 ms
11,264 KB |
testcase_20 | AC | 144 ms
11,520 KB |
testcase_21 | AC | 131 ms
11,008 KB |
testcase_22 | AC | 115 ms
10,368 KB |
testcase_23 | AC | 117 ms
10,496 KB |
testcase_24 | AC | 137 ms
11,264 KB |
testcase_25 | AC | 141 ms
11,520 KB |
testcase_26 | AC | 131 ms
11,008 KB |
testcase_27 | AC | 122 ms
10,624 KB |
testcase_28 | AC | 144 ms
11,520 KB |
testcase_29 | AC | 143 ms
11,520 KB |
testcase_30 | AC | 145 ms
11,520 KB |
testcase_31 | AC | 159 ms
11,520 KB |
testcase_32 | AC | 154 ms
11,648 KB |
testcase_33 | AC | 145 ms
11,648 KB |
testcase_34 | AC | 119 ms
12,416 KB |
testcase_35 | AC | 113 ms
11,904 KB |
testcase_36 | AC | 110 ms
11,776 KB |
testcase_37 | AC | 116 ms
12,032 KB |
testcase_38 | AC | 103 ms
11,648 KB |
testcase_39 | AC | 101 ms
11,520 KB |
testcase_40 | AC | 105 ms
11,520 KB |
testcase_41 | AC | 104 ms
11,776 KB |
testcase_42 | AC | 101 ms
11,776 KB |
testcase_43 | AC | 103 ms
11,520 KB |
testcase_44 | AC | 98 ms
11,520 KB |
testcase_45 | AC | 115 ms
11,264 KB |
testcase_46 | AC | 132 ms
11,776 KB |
testcase_47 | AC | 128 ms
11,904 KB |
testcase_48 | AC | 126 ms
12,032 KB |
testcase_49 | AC | 135 ms
11,776 KB |
testcase_50 | AC | 127 ms
11,776 KB |
testcase_51 | AC | 142 ms
11,904 KB |
testcase_52 | AC | 142 ms
11,904 KB |
testcase_53 | AC | 143 ms
12,032 KB |
testcase_54 | AC | 2 ms
5,376 KB |
testcase_55 | AC | 2 ms
5,376 KB |
ソースコード
/** * @FileName a.cpp * @Author kanpurin * @Created 2020.10.20 15:56:17 **/ #include "bits/stdc++.h" using namespace std; typedef long long ll; template < class Monoid > struct SegmentTree { private: using Func = std::function< Monoid(Monoid, Monoid) >; Func F; Monoid UNITY; int n; std::vector< Monoid > node; int _binary_search(int a, int b, const std::function<bool(Monoid)> &f, Monoid &s, int k = 0, int l = 0, int r = -1) { if (r < 0) r = n; if (r <= a || b <= l) return n; if (a <= l && r <= b && !f(F(s,node[k]))) { s = F(s,node[k]); return n; } if (l == r - 1) {s = F(s,node[k]); return l;} int ret = _binary_search(a, b, f, s, 2 * k + 1, l, (r - l) / 2 + l); return ret != n ? ret : _binary_search(a, b, f, s, 2 * k + 2, (r - l) / 2 + l, r); } public: SegmentTree() {} SegmentTree(const std::vector< Monoid > &v, const Func f, const Monoid &unity) { F = f; UNITY = unity; int sz = v.size(); n = 1; while (n < sz) n <<= 1; node.resize(n * 2 - 1, UNITY); for (int i = 0; i < sz; i++) node[i + n - 1] = v[i]; build(); } SegmentTree(int m, const Monoid &val, const Func f, const Monoid &unity) { F = f; UNITY = unity; n = 1; while (n < m) n <<= 1; node.resize(n * 2 - 1, UNITY); if (val != UNITY) { for (int i = 0; i < m; i++) node[i + n - 1] = val; build(); } } void set(int k, const Monoid &x) { node[n + k - 1] = x; } void build() { for (int i = n - 2; i >= 0; i--) node[i] = F(node[2 * i + 1], node[2 * i + 2]); } void update_query(int x, const Monoid &val) { if (x >= n || x < 0) return; x += n - 1; node[x] = val; while (x > 0) { x = (x - 1) >> 1; node[x] = F(node[2 * x + 1], node[2 * x + 2]); } } Monoid get_query(int l, int r) { Monoid L = UNITY, R = UNITY; if (l < 0) l = 0; if (r < 0) return UNITY; if (l >= n) return UNITY; if (r >= n) r = n; for (l += n, r += n; l < r; l >>= 1, r >>= 1) { if (l & 1) L = F(L, node[l++ - 1]); if (r & 1) R = F(node[--r - 1], R); } return F(L, R); } int binary_search(int l, int r, const std::function<bool(Monoid)> &f) { Monoid s = UNITY; int ret = _binary_search(l,r,f,s); return ret != n ? ret : -1; } Monoid operator[](int x) const { return node[n + x - 1]; } int size() { return n; } void print() { for (int i = 0; i < n; i++) { std::cout << i << "\t: " << node[n + i - 1] << std::endl; } } }; int main() { int n;cin >> n; vector<pair<int,int>> a(n); vector<int> big(n),small(n); set<int> st; for (int i = 0; i < n; i++) { cin >> a[i].first; a[i].second = i; } sort(a.begin(), a.end()); st.insert(-1); for (int i = 0; i < n; i++) { auto t = st.lower_bound(a[i].second); t--; small[a[i].second] = *t; st.insert(a[i].second); } st.clear(); sort(a.rbegin(), a.rend()); st.insert(-1); for (int i = 0; i < n; i++) { auto t = st.lower_bound(a[i].second); t--; big[a[i].second] = *t; st.insert(a[i].second); } SegmentTree<int> seg1(n,0,[](int a,int b){return a+b;},0); SegmentTree<int> seg2(n,0,[](int a,int b){return a+b;},0); stack<pair<int,int>> sta1, sta2; sort(a.begin(), a.end(), [](pair<int,int> a,pair<int,int> b){ return a.second < b.second; }); ll ans = 0; for (int i = 0; i < n; i++) { if (i != 0) { if (a[i-1].first < a[i].first) { ans += seg1.get_query(big[i]+1,i); } else { ans += seg2.get_query(small[i]+1,i); } } while(!sta1.empty() && sta1.top().first > a[i].first) { seg1.update_query(sta1.top().second,0); sta1.pop(); } seg1.update_query(a[i].second,1); sta1.push(a[i]); while(!sta2.empty() && sta2.top().first < a[i].first) { seg2.update_query(sta2.top().second,0); sta2.pop(); } seg2.update_query(a[i].second,1); sta2.push(a[i]); } cout << ans << endl; return 0; }