結果
問題 | No.1800 Random XOR |
ユーザー | fuppy_kyopro |
提出日時 | 2022-01-07 21:25:42 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 7 ms / 2,000 ms |
コード長 | 4,842 bytes |
コンパイル時間 | 2,021 ms |
コンパイル使用メモリ | 206,008 KB |
実行使用メモリ | 11,960 KB |
最終ジャッジ日時 | 2024-11-14 08:24:39 |
合計ジャッジ時間 | 2,736 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge5 |
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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 | 6 ms
11,876 KB |
testcase_01 | AC | 6 ms
11,752 KB |
testcase_02 | AC | 6 ms
11,876 KB |
testcase_03 | AC | 7 ms
11,784 KB |
testcase_04 | AC | 5 ms
11,856 KB |
testcase_05 | AC | 6 ms
11,788 KB |
testcase_06 | AC | 6 ms
11,960 KB |
testcase_07 | AC | 6 ms
11,936 KB |
testcase_08 | AC | 5 ms
11,884 KB |
testcase_09 | AC | 5 ms
11,752 KB |
testcase_10 | AC | 5 ms
11,752 KB |
testcase_11 | AC | 6 ms
11,900 KB |
testcase_12 | AC | 7 ms
11,940 KB |
testcase_13 | AC | 6 ms
11,848 KB |
testcase_14 | AC | 5 ms
11,752 KB |
testcase_15 | AC | 6 ms
11,812 KB |
ソースコード
/* #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") //*/ #include <bits/stdc++.h> // #include <atcoder/all> // #include <atcoder/maxflow> using namespace std; // using namespace atcoder; #define DEBUG(x) cerr << #x << ": " << x << endl; #define DEBUG_VEC(v) \ cerr << #v << ":"; \ for (int iiiiiiii = 0; iiiiiiii < v.size(); iiiiiiii++) \ cerr << " " << v[iiiiiiii]; \ cerr << endl; #define DEBUG_MAT(v) \ cerr << #v << endl; \ for (int iv = 0; iv < v.size(); iv++) { \ for (int jv = 0; jv < v[iv].size(); jv++) { \ cerr << v[iv][jv] << " "; \ } \ cerr << endl; \ } typedef long long ll; // #define int ll #define vi vector<int> #define vl vector<ll> #define vii vector<vector<int>> #define vll vector<vector<ll>> #define vs vector<string> #define pii pair<int, int> #define pis pair<int, string> #define psi pair<string, int> #define pll pair<ll, ll> template <class S, class T> pair<S, T> operator+(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first + t.first, s.second + t.second); } template <class S, class T> pair<S, T> operator-(const pair<S, T> &s, const pair<S, T> &t) { return pair<S, T>(s.first - t.first, s.second - t.second); } template <class S, class T> ostream &operator<<(ostream &os, pair<S, T> p) { os << "(" << p.first << ", " << p.second << ")"; return os; } #define X first #define Y second #define rep(i, n) for (int i = 0; i < (int)(n); i++) #define rep1(i, n) for (int i = 1; i <= (int)(n); i++) #define rrep(i, n) for (int i = (int)(n)-1; i >= 0; i--) #define rrep1(i, n) for (int i = (int)(n); i > 0; i--) #define REP(i, a, b) for (int i = a; i < b; i++) #define in(x, a, b) (a <= x && x < b) #define all(c) c.begin(), c.end() void YES(bool t = true) { cout << (t ? "YES" : "NO") << endl; } void Yes(bool t = true) { cout << (t ? "Yes" : "No") << endl; } void yes(bool t = true) { cout << (t ? "yes" : "no") << endl; } void NO(bool t = true) { cout << (t ? "NO" : "YES") << endl; } void No(bool t = true) { cout << (t ? "No" : "Yes") << endl; } void no(bool t = true) { cout << (t ? "no" : "yes") << endl; } 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; } #define UNIQUE(v) v.erase(std::unique(v.begin(), v.end()), v.end()); const ll inf = 1000000001; const ll INF = (ll)1e18 + 1; const long double pi = 3.1415926535897932384626433832795028841971L; int popcount(ll t) { return __builtin_popcountll(t); } // int dx[4] = {1, 0, -1, 0}, dy[4] = {0, 1, 0, -1}; // int dx2[8] = { 1,1,0,-1,-1,-1,0,1 }, dy2[8] = { 0,1,1,1,0,-1,-1,-1 }; vi dx = {0, 1, 0, -1}, dy = {-1, 0, 1, 0}; vi dx2 = {1, 1, 0, -1, -1, -1, 0, 1}, dy2 = {0, 1, 1, 1, 0, -1, -1, -1}; struct Setup_io { Setup_io() { ios_base::sync_with_stdio(0), cin.tie(0), cout.tie(0); cout << fixed << setprecision(25); } } setup_io; const ll MOD = 1000000007; // const ll MOD = 998244353; // #define mp make_pair //#define endl '\n' const int MAXN = 555555; vl fact(MAXN); vl rfact(MAXN); ll mod_pow(ll x, ll p, ll M = MOD) { if (p < 0) { x = mod_pow(x, M - 2, M); p = -p; } x %= M; ll a = 1; while (p) { if (p % 2) a = a * x % M; x = x * x % M; p /= 2; } return a; } ll mod_inverse(ll a, ll M = MOD) { return mod_pow(a, M - 2, M); } void set_fact(ll n, ll M = MOD) { fact[0] = 1; for (ll i = 1; i <= n; i++) { fact[i] = i * fact[i - 1] % M; } rfact[n] = mod_inverse(fact[n], M); for (ll i = n - 1; i >= 0; i--) { rfact[i] = (i + 1) * rfact[i + 1] % M; } } //http://drken1215.hatenablog.com/entry/2018/06/08/210000 //n���傫��fact���v�Z�ł��Ȃ��Ƃ��̂ق��̌v�Z���@�ɂ��ď����Ă��� ll nCr(ll n, ll r, ll M = MOD) { if (r > n) return 0; assert(fact[2] == 2); ll ret = fact[n]; if (rfact[r] == 0) { rfact[r] = mod_inverse(fact[r], M); } ret = (ret * rfact[r]) % M; if (rfact[n - r] == 0) { rfact[n - r] = mod_inverse(fact[n - r], M); } ret = (ret * rfact[n - r]) % M; return ret; } ll nHr(ll n, ll r) { return nCr(n + r - 1, r); } signed main() { ll n, m; cin >> n >> m; ll mask = mod_pow(2, m) - 1; mask %= MOD; cout << (mask + MOD) * mod_inverse(2) % MOD << endl; }