結果
問題 | No.1300 Sum of Inversions |
ユーザー | shell_mug |
提出日時 | 2020-11-27 22:00:30 |
言語 | C++17(clang) (17.0.6 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 247 ms / 2,000 ms |
コード長 | 5,257 bytes |
コンパイル時間 | 3,506 ms |
コンパイル使用メモリ | 154,592 KB |
実行使用メモリ | 32,796 KB |
最終ジャッジ日時 | 2024-07-26 12:39:02 |
合計ジャッジ時間 | 11,423 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge2 |
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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 | 1 ms
5,376 KB |
testcase_02 | AC | 1 ms
5,376 KB |
testcase_03 | AC | 199 ms
29,804 KB |
testcase_04 | AC | 189 ms
29,440 KB |
testcase_05 | AC | 152 ms
19,584 KB |
testcase_06 | AC | 224 ms
30,960 KB |
testcase_07 | AC | 204 ms
30,440 KB |
testcase_08 | AC | 239 ms
31,632 KB |
testcase_09 | AC | 239 ms
31,488 KB |
testcase_10 | AC | 125 ms
18,048 KB |
testcase_11 | AC | 120 ms
18,304 KB |
testcase_12 | AC | 185 ms
29,480 KB |
testcase_13 | AC | 177 ms
29,432 KB |
testcase_14 | AC | 247 ms
32,640 KB |
testcase_15 | AC | 229 ms
31,460 KB |
testcase_16 | AC | 194 ms
30,052 KB |
testcase_17 | AC | 116 ms
17,920 KB |
testcase_18 | AC | 135 ms
19,072 KB |
testcase_19 | AC | 160 ms
28,416 KB |
testcase_20 | AC | 164 ms
28,616 KB |
testcase_21 | AC | 175 ms
28,584 KB |
testcase_22 | AC | 162 ms
19,456 KB |
testcase_23 | AC | 241 ms
30,908 KB |
testcase_24 | AC | 156 ms
19,840 KB |
testcase_25 | AC | 129 ms
18,816 KB |
testcase_26 | AC | 127 ms
18,560 KB |
testcase_27 | AC | 151 ms
19,200 KB |
testcase_28 | AC | 232 ms
31,872 KB |
testcase_29 | AC | 163 ms
28,384 KB |
testcase_30 | AC | 229 ms
31,488 KB |
testcase_31 | AC | 149 ms
19,712 KB |
testcase_32 | AC | 154 ms
19,840 KB |
testcase_33 | AC | 157 ms
32,652 KB |
testcase_34 | AC | 170 ms
32,768 KB |
testcase_35 | AC | 162 ms
32,796 KB |
testcase_36 | AC | 172 ms
32,768 KB |
ソースコード
#include <iostream> #include <cstdio> #include <cstdlib> #include <algorithm> #include <cmath> #include <vector> #include <set> #include <map> #include <unordered_set> #include <unordered_map> #include <queue> #include <ctime> #include <cassert> #include <complex> #include <string> #include <cstring> #include <chrono> #include <random> #include <queue> #include <bitset> #include <stack> #include <functional> // AtCoder // #include <atcoder/all> // using namespace atcoder; #ifdef LOCAL #define eprintf(...) fprintf(stderr, __VA_ARGS__) #else #define eprintf(...) #endif #define rep_(i, a_, b_, a, b, ...) for (int i = (a), i##_len = (b); i < i##_len; ++i) #define rep(i, ...) rep_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define reprev_(i, a_, b_, a, b, ...) for (int i = (b)-1, i##_min = (a); i >= i##_min; --i) #define reprev(i, ...) reprev_(i, __VA_ARGS__, __VA_ARGS__, 0, __VA_ARGS__) #define all(x) (x).begin(), (x).end() template <class T> bool chmax(T &a, const T &b) { if (a < b) { a = b; return 1; } return 0; } template <class T> bool chmin(T &a, const T &b) { if (b < a) { a = b; return 1; } return 0; } #define fls(x) (64 - __builtin_clzll(x)) #define pcnt(x) __builtin_popcountll(x) using namespace std; typedef long long ll; typedef unsigned long long ull; typedef pair <ll,int> P; typedef long double ld; template< typename Monoid > struct SegmentTree { using F = function< Monoid(Monoid, Monoid) >; int sz; vector< Monoid > seg; const F f; const Monoid M1; SegmentTree(int n, const F f, const Monoid &M1) : f(f), M1(M1) { sz = 1; while(sz < n) sz <<= 1; seg.assign(2 * sz, M1); } void set(int k, const Monoid &x) { seg[k + sz] = x; } void build() { for(int k = sz - 1; k > 0; k--) { seg[k] = f(seg[2 * k + 0], seg[2 * k + 1]); } } void update(int k, const Monoid &x) { k += sz; seg[k] = x; while(k >>= 1) { seg[k] = f(seg[2 * k + 0], seg[2 * k + 1]); } } Monoid query(int a, int b) { Monoid L = M1, R = M1; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1) { if(a & 1) L = f(L, seg[a++]); if(b & 1) R = f(seg[--b], R); } return f(L, R); } Monoid operator[](const int &k) const { return seg[k + sz]; } template< typename C > int find_subtree(int a, const C &check, Monoid &M, bool type) { while(a < sz) { Monoid nxt = type ? f(seg[2 * a + type], M) : f(M, seg[2 * a + type]); if(check(nxt)) a = 2 * a + type; else M = nxt, a = 2 * a + 1 - type; } return a - sz; } template< typename C > int find_first(int a, const C &check) { Monoid L = M1; if(a <= 0) { if(check(f(L, seg[1]))) return find_subtree(1, check, L, false); return -1; } int b = sz; for(a += sz, b += sz; a < b; a >>= 1, b >>= 1) { if(a & 1) { Monoid nxt = f(L, seg[a]); if(check(nxt)) return find_subtree(a, check, L, false); L = nxt; ++a; } } return -1; } template< typename C > int find_last(int b, const C &check) { Monoid R = M1; if(b >= sz) { if(check(f(seg[1], R))) return find_subtree(1, check, R, true); return -1; } int a = sz; for(b += sz; a < b; a >>= 1, b >>= 1) { if(b & 1) { Monoid nxt = f(seg[--b], R); if(check(nxt)) return find_subtree(b, check, R, true); R = nxt; } } return -1; } }; int main (void) { cin.tie(0); ios::sync_with_stdio(false); ll n; cin >> n; vector<ll> a(n); rep (i, n) cin >> a[i]; SegmentTree<ll> segr0(n, [](ll a, ll b){return a + b;}, 0); SegmentTree<ll> segr1(n, [](ll a, ll b){return a + b;}, 0); SegmentTree<ll> segl0(n, [](ll a, ll b){return a + b;}, 0); SegmentTree<ll> segl1(n, [](ll a, ll b){return a + b;}, 0); vector<P> b(n); rep (i, n) b[i] = P{a[i], i}; sort(all(b), greater<P>()); vector<int> perm(n); rep (i, n) perm[i] = b[i].second; // rep (i, n) eprintf("%d%c", perm[i], " \n"[i + 1 == n]); vector<vector<ll>> m(4, vector<ll>(n)); rep (i, n) { segr0.update(perm[i], 1); m[1][perm[i]] = segr0.query(0, perm[i]); segr1.update(perm[i], m[1][perm[i]]); m[2][perm[i]] = segr1.query(0, perm[i]); } reprev (i, n) { segl0.update(perm[i], 1); m[3][perm[i]] = segl0.query(perm[i] + 1, n); segl1.update(perm[i], m[3][perm[i]]); m[0][perm[i]] = segl1.query(perm[i] + 1, n); } rep (j, n) eprintf("%lld%c", m[0][j], " \n"[j + 1 == j_len]); rep (j, n) eprintf("%lld%c", m[1][j], " \n"[j + 1 == j_len]); rep (j, n) eprintf("%lld%c", m[3][j], " \n"[j + 1 == j_len]); rep (j, n) eprintf("%lld%c", m[2][j], " \n"[j + 1 == j_len]); ll ans = 0, MOD = 998244353; rep (i, n) { ans = (ans + (m[0][i] + m[1][i] * m[3][i] + m[2][i]) % MOD * a[i] % MOD) % MOD; } cout << ans << "\n"; return 0; }