結果
問題 | No.1102 Remnants |
ユーザー | Shuz* |
提出日時 | 2020-07-03 22:56:05 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
WA
|
実行時間 | - |
コード長 | 7,202 bytes |
コンパイル時間 | 1,617 ms |
コンパイル使用メモリ | 171,488 KB |
実行使用メモリ | 6,948 KB |
最終ジャッジ日時 | 2024-09-17 04:37:43 |
合計ジャッジ時間 | 23,721 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 | 2 ms
6,816 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | WA | - |
testcase_03 | AC | 2 ms
6,940 KB |
testcase_04 | AC | 2 ms
6,940 KB |
testcase_05 | AC | 1,770 ms
6,944 KB |
testcase_06 | WA | - |
testcase_07 | TLE | - |
testcase_08 | AC | 33 ms
6,940 KB |
testcase_09 | WA | - |
testcase_10 | WA | - |
testcase_11 | WA | - |
testcase_12 | WA | - |
testcase_13 | AC | 99 ms
6,940 KB |
testcase_14 | AC | 960 ms
6,940 KB |
testcase_15 | WA | - |
testcase_16 | TLE | - |
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 | - |
コンパイルメッセージ
main.cpp:184:6: warning: literal operator suffixes not preceded by '_' are reserved for future standardization [-Wliteral-suffix] 184 | mint operator"" M(const ull n) { return mint(n); } | ^~~~~~~~
ソースコード
#include <bits/stdc++.h> using namespace std; // Define using ll = long long; using ull = unsigned long long; using ld = long double; template <class T> using pvector = vector<pair<T, T>>; template <class T> using rpriority_queue = priority_queue<T, vector<T>, greater<T>>; constexpr const ll dx[4] = {1, 0, -1, 0}; constexpr const ll dy[4] = {0, 1, 0, -1}; constexpr const ll MOD = 1e9 + 7; constexpr const ll mod = 998244353; constexpr const ll INF = 1LL << 60; constexpr const ll inf = 1 << 30; constexpr const char rt = '\n'; constexpr const char sp = ' '; #define all(x) (x).begin(), (x).end() #define rall(x) (x).rbegin(), (x).rend() #define mp make_pair #define mt make_tuple #define pb push_back #define eb emplace_back #define elif else if #define fi first #define se second 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 (a > b) { a = b; return 1; } return 0; } // Debug #define debug(...) \ { \ cerr << __LINE__ << ": " << #__VA_ARGS__ << " = "; \ for (auto &&X : {__VA_ARGS__}) cerr << "[" << X << "] "; \ cerr << rt; \ } #define dump(a, h, w) \ { \ cerr << __LINE__ << ": " << #a << " = [" << rt; \ rep(_i, h) { \ rep(_j, w) { \ if (abs(a[_i][_j]) >= INF / 2 and a[_i][_j] <= -INF / 2) \ cerr << '-'; \ if (abs(a[_i][_j]) >= INF / 2) \ cerr << "∞" << sp; \ else \ cerr << a[_i][_j] << sp; \ } \ cerr << rt; \ } \ cerr << "]" << rt; \ } #define vdump(a, n) \ { \ cerr << __LINE__ << ": " << #a << " = ["; \ rep(_i, n) { \ if (_i) cerr << sp; \ if (abs(a[_i]) >= INF / 2 and a[_i] <= -INF / 2) cerr << '-'; \ if (abs(a[_i]) >= INF / 2) \ cerr << "∞" << sp; \ else \ cerr << a[_i]; \ } \ cerr << "]" << rt; \ } // Loop #define inc(i, a, n) for (ll i = (a), _##i = (n); i <= _##i; ++i) #define dec(i, a, n) for (ll i = (a), _##i = (n); i >= _##i; --i) #define rep(i, n) for (ll i = 0, _##i = (n); i < _##i; ++i) #define each(i, a) for (auto &&i : a) // Stream #define fout(n) cout << fixed << setprecision(n) struct io { io() { cin.tie(nullptr), ios::sync_with_stdio(false); } } io; // Speed #pragma GCC optimize("Ofast,unroll-loops") #pragma GCC target("sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,tune=native") // Math inline constexpr ll gcd(const ll a, const ll b) { return b ? gcd(b, a % b) : a; } inline constexpr ll lcm(const ll a, const ll b) { return a / gcd(a, b) * b; } inline constexpr ll modulo(const ll n, const ll m = MOD) { ll k = n % m; return k + m * (k < 0); } inline constexpr ll chmod(ll &n, const ll m = MOD) { n %= m; return n += m * (n < 0); } inline constexpr ll mpow(ll a, ll n, const ll m = MOD) { ll r = 1; rep(i, 64) { if (n & (1LL << i)) r *= a; chmod(r, m); a *= a; chmod(a, m); } return r; } inline ll inv(const ll n, const ll m = MOD) { ll a = n, b = m, x = 1, y = 0; while (b) { ll t = a / b; a -= t * b; swap(a, b); x -= t * y; swap(x, y); } return modulo(x, m); } const ll mo = 1e9 + 7; struct mint { ll x; mint(ll x = 0) : x((x % mo + mo) % mo) {} mint operator-() const { return mint(-x); } mint &operator+=(const mint &a) { if ((x += a.x) >= mo) x -= mo; return *this; } mint &operator-=(const mint &a) { if ((x += mo - a.x) >= mo) x -= mo; return *this; } mint &operator*=(const mint &a) { (x *= a.x) %= mo; return *this; } mint operator+(const mint &a) const { return mint(*this) += a; } mint operator-(const mint &a) const { return mint(*this) -= a; } mint operator*(const mint &a) const { return mint(*this) *= a; } bool operator==(const mint &a) const { return x == a.x; } bool operator!=(const mint &a) const { return x != a.x; } bool operator<=(const mint &a) { return x <= a.x; } bool operator<(const mint &a) { return x < a.x; } friend ll abs(const mint &a) { return a.x; } friend mint pow(const mint &a, ll n) { if (!n) return 1; mint b = pow(a, n >> 1); b *= b; if (n & 1) b *= a; return b; } mint inv() const { return pow(*this, mo - 2); } mint &operator/=(mint a) { return (*this) *= a.inv(); } mint operator/(mint a) const { return mint(*this) /= a; } friend istream &operator>>(istream &is, mint &a) { ll t; is >> t; a = mint(t); return is; } friend ostream &operator<<(ostream &os, mint a) { os << a.x; return os; } }; mint operator"" M(const ull n) { return mint(n); } signed main() { ll N, K; cin >> N >> K; mint A[N + 1] = {}; rep(i, N) cin >> A[i + 1]; rep(i, N) A[i + 1] += A[i]; mint W = 0, X = 0, Y = 0, Z = 0, t = 1; /* rep(i, N) W += math.H(i + 1, K - 1); X += math.H(N - i, K - 1) * A[i + 1]; Y += math.H(i + 1, K - 1) * A[i]; Z += math.H(N - i, K - 1); */ rep(i, N) { W += t; X += t * A[N - i]; Y += t * A[i]; Z += t; // i + 1 H K - 1 -> i + 2 H K - 1 // i + K - 1 C i -> i + K C i + 1 t *= i + K, t /= mint(i + 1); debug(t); } debug(W, X, Y, Z); cout << W * X - Y * Z << rt; }