結果
問題 | No.1441 MErGe |
ユーザー | tkmst201 |
提出日時 | 2021-06-06 22:45:27 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 2,913 bytes |
コンパイル時間 | 2,398 ms |
コンパイル使用メモリ | 214,268 KB |
実行使用メモリ | 8,960 KB |
最終ジャッジ日時 | 2024-05-02 23:49:23 |
合計ジャッジ時間 | 7,248 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
(要ログイン)
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
6,812 KB |
testcase_01 | AC | 1 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,944 KB |
testcase_03 | WA | - |
testcase_04 | WA | - |
testcase_05 | WA | - |
testcase_06 | WA | - |
testcase_07 | WA | - |
testcase_08 | WA | - |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | WA | - |
testcase_14 | WA | - |
testcase_15 | WA | - |
testcase_16 | WA | - |
testcase_17 | WA | - |
testcase_18 | WA | - |
testcase_19 | WA | - |
testcase_20 | WA | - |
testcase_21 | WA | - |
testcase_22 | WA | - |
testcase_23 | WA | - |
testcase_24 | WA | - |
testcase_25 | WA | - |
testcase_26 | WA | - |
testcase_27 | WA | - |
testcase_28 | AC | 160 ms
7,296 KB |
testcase_29 | AC | 158 ms
7,296 KB |
ソースコード
#include <bits/stdc++.h> using namespace std; #define FOR(i,a,b) for(int i=(a);i<(b);++i) #define REP(i,n) FOR(i,0,n) #define ALL(v) begin(v),end(v) template<typename A, typename B> inline bool chmax(A & a, const B & b) { if (a < b) { a = b; return true; } return false; } template<typename A, typename B> inline bool chmin(A & a, const B & b) { if (a > b) { a = b; return true; } return false; } using ll = long long; using pii = pair<int, int>; constexpr ll INF = 1ll<<30; constexpr ll longINF = 1ll<<60; constexpr ll MOD = 1000000007; constexpr bool debug = false; //---------------------------------// /** * @brief https://tkmst201.github.io/Library/DataStructure/BinaryIndexedTree.hpp */ template<typename T> struct BinaryIndexedTree { using value_type = T; using const_reference = const value_type &; using F = std::function<value_type (const_reference, const_reference)>; using size_type = std::size_t; private: size_type n; value_type id_elem; F f; std::vector<value_type> node; public: BinaryIndexedTree(size_type n, const_reference id_elem, const F & f) : n(n), id_elem(id_elem), f(f), node(n + 1, id_elem) {} size_type size() const noexcept { return n; } void add(size_type i, const_reference x) noexcept { assert(i < size()); ++i; for (; i <= size(); i += i & -i) node[i] = f(node[i], x); } value_type sum(size_type i) const noexcept { assert(i <= size()); value_type res = id_elem; for (; i > 0; i -= i & -i) res = f(node[i], res); return res; } size_type lower_bound(const_reference x) const noexcept { size_type res = 0; size_type s = id_elem, w = 1; while (w < size()) w <<= 1; for (; w > 0; w >>= 1) { if (res + w <= size()) { value_type cur = f(s, node[res + w]); if (cur < x) { res += w; s = cur; } } } return res; } }; int main() { int N, Q; cin >> N >> Q; BinaryIndexedTree<ll> bit(N, 0, [](auto x, auto y) { return x + y; }); auto bitp = bit; REP(i, N) { int a; scanf("%d", &a); bit.add(i, a); } vector<int> prv(N + 1); REP(i, N + 1) prv[i] = i - 1; // prv[0] = -1 に注意 set<int> ss; while (Q--) { int t, l, r; scanf("%d %d %d", &t, &l, &r); --l; auto sum = [&](int p) { p += bitp.sum(p); return bit.sum(p); }; if (t == 1) { int rp = r + bitp.sum(r); int lp = l + bitp.sum(l); const int nerp = prv[rp]; prv[rp] = lp; rp = nerp; ll s = 0; while (rp >= lp) { int nex = prv[rp]; ll cur = bit.sum(rp + 1) - bit.sum(rp); bit.add(rp, -cur); s += cur; if (rp != lp) prv[rp] = lp; rp = nex; } bit.add(lp, s); int sp = r - l - 1; auto it = ss.lower_bound(l); while (it != ss.end() && *it < r) { int c = bitp.sum(*it + 1) - bitp.sum(*it); sp += c; bitp.add(*it, -c); it = ss.erase(it); } bitp.add(l, sp); ss.emplace(l); } else printf("%lld\n", sum(r) - sum(l)); } }