結果
問題 | No.1975 Zigzag Sequence |
ユーザー | SnowBeenDiding |
提出日時 | 2022-06-10 22:58:46 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 293 ms / 2,000 ms |
コード長 | 5,960 bytes |
コンパイル時間 | 5,471 ms |
コンパイル使用メモリ | 320,852 KB |
実行使用メモリ | 17,200 KB |
最終ジャッジ日時 | 2024-09-21 06:45:16 |
合計ジャッジ時間 | 11,426 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,944 KB |
testcase_02 | AC | 2 ms
6,940 KB |
testcase_03 | AC | 22 ms
6,940 KB |
testcase_04 | AC | 10 ms
6,940 KB |
testcase_05 | AC | 207 ms
8,416 KB |
testcase_06 | AC | 149 ms
8,296 KB |
testcase_07 | AC | 24 ms
6,940 KB |
testcase_08 | AC | 115 ms
6,944 KB |
testcase_09 | AC | 227 ms
11,116 KB |
testcase_10 | AC | 141 ms
7,276 KB |
testcase_11 | AC | 162 ms
8,520 KB |
testcase_12 | AC | 32 ms
6,940 KB |
testcase_13 | AC | 2 ms
6,940 KB |
testcase_14 | AC | 2 ms
6,940 KB |
testcase_15 | AC | 2 ms
6,940 KB |
testcase_16 | AC | 2 ms
6,940 KB |
testcase_17 | AC | 2 ms
6,940 KB |
testcase_18 | AC | 136 ms
7,540 KB |
testcase_19 | AC | 136 ms
7,408 KB |
testcase_20 | AC | 152 ms
8,628 KB |
testcase_21 | AC | 151 ms
8,644 KB |
testcase_22 | AC | 215 ms
17,064 KB |
testcase_23 | AC | 214 ms
17,072 KB |
testcase_24 | AC | 236 ms
17,196 KB |
testcase_25 | AC | 238 ms
17,188 KB |
testcase_26 | AC | 204 ms
7,988 KB |
testcase_27 | AC | 293 ms
12,452 KB |
testcase_28 | AC | 226 ms
17,072 KB |
testcase_29 | AC | 227 ms
17,072 KB |
testcase_30 | AC | 229 ms
17,200 KB |
testcase_31 | AC | 224 ms
17,196 KB |
testcase_32 | AC | 136 ms
7,064 KB |
testcase_33 | AC | 135 ms
7,056 KB |
testcase_34 | AC | 210 ms
9,016 KB |
testcase_35 | AC | 207 ms
8,768 KB |
ソースコード
#include <atcoder/all> using namespace atcoder; using mint = modint1000000007; // using mint = modint998244353; // using mint = modint;//mint::set_mod(MOD); const long long MOD = 1000000007; // const long long MOD = 998244353; #include <bits/stdc++.h> #define rep(i, a, b) for (ll i = (ll)(a); i < (ll)(b); i++) #define repeq(i, a, b) for (ll i = (ll)(a); i <= (ll)(b); i++) #define repreq(i, a, b) for (ll i = (ll)(a); i >= (ll)(b); i--) #define each(a, b) for (auto &(a) : (b)) #define endl '\n' // fflush(stdout); #define cYes cout << "Yes" << endl #define cNo cout << "No" << endl #define sortr(v) sort(v, greater<>()) #define pb push_back #define mp make_pair #define mt make_tuple #define tget(a, b) get<b>(a) #define FI first #define SE second #define ALL(v) (v).begin(), (v).end() #define INFLL 3000000000000000100LL #define INF 1000000100 #define PI acos(-1.0L) #define TAU (PI * 2.0L) using namespace std; typedef long long ll; typedef pair<ll, ll> Pll; typedef tuple<ll, ll, ll> Tlll; typedef vector<int> Vi; typedef vector<Vi> VVi; typedef vector<ll> Vl; typedef vector<Vl> VVl; typedef vector<VVl> VVVl; typedef vector<Tlll> VTlll; typedef vector<mint> Vm; typedef vector<Vm> VVm; typedef vector<string> Vs; typedef vector<double> Vd; typedef vector<char> Vc; typedef vector<bool> Vb; typedef vector<Pll> VPll; typedef priority_queue<ll> PQl; typedef priority_queue<ll, vector<ll>, greater<ll>> PQlr; /* print */ template <typename T> ostream &operator<<(ostream &os, const vector<T> &V) { int N = V.size(); if (N == 0) { os << endl; return os; } rep(i, 0, N - 1) { os << V[i] << ' '; } os << V[N - 1] << endl; return os; } template <typename T> ostream &operator<<(ostream &os, const vector<vector<T>> &V) { int N = V.size(); rep(i, 0, N) os << V[i]; return os; } template <typename T, typename S> ostream &operator<<(ostream &os, pair<T, S> const &P) { os << P.FI << ' ' << P.SE; return os; } ostream &operator<<(ostream &os, mint const &M) { os << M.val(); return os; } /* useful */ template <typename T> void Vin(vector<T> &v) { int n = v.size(); rep(i, 0, n) cin >> v[i]; } template <typename T> int SMALLER(vector<T> &a, T x) { return lower_bound(a.begin(), a.end(), x) - a.begin(); } template <typename T> int orSMALLER(vector<T> &a, T x) { return upper_bound(a.begin(), a.end(), x) - a.begin(); } template <typename T> int BIGGER(vector<T> &a, T x) { return a.size() - orSMALLER(a, x); } template <typename T> int orBIGGER(vector<T> &a, T x) { return a.size() - SMALLER(a, x); } template <typename T> int COUNT(vector<T> &a, T x) { return upper_bound(ALL(a), x) - lower_bound(ALL(a), x); } template <typename T> bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } template <typename T> void press(T &v) { v.erase(unique(ALL(v)), v.end()); } template <typename T> vector<int> zip(vector<T> b) { pair<T, int> p[b.size() + 10]; int a = b.size(); vector<int> l(a); for (int i = 0; i < a; i++) p[i] = mp(b[i], i); sort(p, p + a); int w = 0; for (int i = 0; i < a; i++) { if (i && p[i].first != p[i - 1].first) w++; l[p[i].second] = w; } return l; } template <typename T> vector<T> vis(vector<T> &v) { vector<T> S(v.size() + 1); rep(i, 1, S.size()) S[i] += v[i - 1] + S[i - 1]; return S; } ll dem(ll a, ll b) { return ((a + b - 1) / (b)); } ll dtoll(double d, int g) { return round(d * pow(10, g)); } const double EPS = 1e-10; void init() { cin.tie(0); cout.tie(0); ios::sync_with_stdio(0); cout << fixed << setprecision(12); } // Comm + K -> Comm + 0 // Comm + K -> Comm + C = add// // Comm + K -> Comm + U = del// /********************************** START **********************************/ mint st_add(mint a, mint b) { return a + b; } mint st_zero() { return 0; } struct RAQ { int n; segtree<mint, st_add, st_zero> st; RAQ(int input, mint init = 0) { n = input; st = segtree<mint, st_add, st_zero>(vector<mint>(n + 1, init)); } void set(int i, mint k) { apply(i, i + 1, k - get(i)); } void apply(int l, int r, mint val) { st.set(l, st.get(l) + val); st.set(r, st.get(r) - val); } mint get(int i) { return st.prod(0, i + 1); } void out() { for (int i = 0; i < n; i++) cout << get(i) << " \n"[i == n - 1]; } void err() { for (int i = 0; i < n; i++) cerr << get(i) << " \n"[i == n - 1]; } mint operator[](int i) { return get(i); } }; void sol() { int n; cin >> n; Vl a(n); Vin(a); // cerr << zip(a) << endl; mint ans = 0; auto f = [&]() { map<ll, Vi> ma; mint pre = 0; RAQ st(n), str(n); rep(i, 0, n) { ma[a[i]].pb(i); } for (auto p : ma) { auto key = p.first; auto val = p.second; rep(i, 0, val.size()) { mint l, r, s; l = st[val[i]]; // s = st[n - 1]; // r = s - l; // r /= pow_mod(2, val[i] + 1, MOD); mint lr, rr, sr; lr = str[val[i]]; sr = str[n - 1]; rr = sr - lr; pre += l * rr; // /cerr << lr << ' ' << r << endl; } rep(i, 0, val.size()) { mint ad = pow_mod(2, val[i], MOD); st.apply(val[i], n, ad); mint adr = pow_mod(2, n - 1 - val[i], MOD); str.apply(val[i], n, adr); } } return pre; }; ans += f(); rep(i, 0, n) a[i] *= -1; ans += f(); cout << ans << endl; } int main() { init(); int q = 1; // cin >> q; while (q--) sol(); return 0; }