結果
問題 | No.801 エレベーター |
ユーザー |
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提出日時 | 2021-06-01 06:42:41 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 134 ms / 2,000 ms |
コード長 | 4,478 bytes |
コンパイル時間 | 1,232 ms |
コンパイル使用メモリ | 129,820 KB |
最終ジャッジ日時 | 2025-01-21 20:56:23 |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 26 |
ソースコード
#pragma gcc target("avx2")#pragma gcc optimize("o3")#pragma gcc optimize("unroll-loops")//#pragma warning(disable : 4996)//#define ATCODER#ifdef ATCODER#include <atcoder/all>using namespace atcoder;#endif#include <limits.h>#include <math.h>#include <time.h>#include <algorithm>#include <array>#include <bitset>#include <cassert>#include <complex>#include <cstdio>#include <cstring>#include <functional>#include <iomanip>#include <iostream>#include <iterator>#include <map>#include <numeric>#include <queue>#include <random>#include <set>#include <stack>#include <string>#include <type_traits>#include <unordered_map>#include <unordered_set>#include <utility>#include <vector>using namespace std;#if defined(LOCAL) || defined(_MSC_VER)void debug_out() { cerr << endl; }template <typename Head, typename... Tail>void debug_out(Head H, Tail... T) {cerr << " " << to_string(H);debug_out(T...);}#define DEBUG(...) cerr << "[" << #__VA_ARGS__ << "]:", debug_out(__VA_ARGS__)#else#define DEBUG(...) 42#endif#ifdef _MSC_VER#include <intrin.h>#include "stdafx.h"#define __builtin_popcount __popcnt#define __builtin_popcountll __popcnt64#endif#define ll long long#define REP(i, n) for (ll i = 0; i < (n); ++i)#define REPR(i, n) for (ll i = (n)-1; i >= 0; --i)#define FOR(i, m, n) for (ll i = (m); i < (n); ++i)#define VSORT(v) sort(v.begin(), v.end());#define VREVERSE(v) reverse(v.begin(), v.end())#define print(x) cout << (x) << '\n'#define spa << " " <<#define lb(v, n) lower_bound(v.begin(), v.end(), (n))#define ub(v, n) upper_bound(v.begin(), v.end(), (n))#define int long long//#define double long double#define all(x) (x).begin(), (x).end()#define print_space(v) \REP(i, v.size()) cout << v[i] << " \n"[i == (int)v.size() - 1]template <typename T1, typename T2>inline bool chmin(T1& a, T2 b) {if (a > b) {a = b;return true;}return false;}template <typename T1, typename T2>inline bool chmax(T1& a, T2 b) {if (a < b) {a = b;return true;}return false;}typedef pair<int, int> pii;typedef pair<long long, long long> pll;std::random_device rd;std::mt19937 mt(rd());constexpr ll MOD = 1e9 + 7;constexpr int MAX = 40040;const double pi = acos(-1);constexpr long double EPS = 1e-9;const int dx[4] = { 0, 0, -1, 1 }, dy[4] = { -1, 1, 0, 0 };using ld = long double;const int mod = 1000000007;//const int mod = 998244353;struct mint {ll x; // typedef long long ll;mint(ll x = 0) :x((x% mod + mod) % mod) {}mint operator-() const { return mint(-x); }mint& operator+=(const mint a) {if ((x += a.x) >= mod) x -= mod;return *this;}mint& operator-=(const mint a) {if ((x += mod - a.x) >= mod) x -= mod;return *this;}mint& operator*=(const mint a) { (x *= a.x) %= mod; 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; }mint pow(ll t) const {if (!t) return 1;mint a = pow(t >> 1);a *= a;if (t & 1) a *= *this;return a;}// for prime modmint inv() const { return pow(mod - 2); }mint& operator/=(const mint a) { return *this *= a.inv(); }mint operator/(const mint a) const { return mint(*this) /= a; }};istream& operator>>(istream& is, const mint& a) { return is >> a.x; }ostream& operator<<(ostream& os, const mint& a) { return os << a.x; }mint fac[MAX], finv[MAX], inv[MAX];void COMinit() {fac[0] = fac[1] = 1;finv[0] = finv[1] = 1;inv[1] = 1;for (int i = 2; i < MAX; i++) {fac[i] = fac[i - 1] * i;inv[i] = -inv[MOD % i] * (MOD / i);finv[i] = finv[i - 1] * inv[i];}}mint COM(int n, int k) {if (n < k) return 0;if (n < 0 || k < 0) return 0;return fac[n] * (finv[k] * finv[n - k]);}mint dp[3030][3030];void solve() {int N, M, K; cin >> N >> M >> K;vector<int>L(M), R(M);REP(i, M) {cin >> L[i] >> R[i];L[i]--;}FOR(i, 1, N + 1)dp[0][i] = 1;REP(i, K) {REP(j, M) {dp[i+1][L[j]+1]+= dp[i][R[j]] - dp[i][L[j]];dp[i + 1][R[j]+1] -= dp[i][R[j]] - dp[i][L[j]];}REP(j, N+1)dp[i + 1][j + 1] += dp[i + 1][j];REP(j,N+1)dp[i + 1][j + 1] += dp[i + 1][j];}print(dp[K][N] - dp[K][N - 1]);}signed main() {cin.tie(0);ios::sync_with_stdio(false);// REP(_, 100)test();//int q;//cin >> q;//while (q--)solve();}