結果
問題 | No.1830 Balanced Majority |
ユーザー | milkcoffee |
提出日時 | 2022-02-04 21:53:57 |
言語 | C++14 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 8,082 bytes |
コンパイル時間 | 4,740 ms |
コンパイル使用メモリ | 242,672 KB |
実行使用メモリ | 41,464 KB |
最終ジャッジ日時 | 2024-06-11 11:46:27 |
合計ジャッジ時間 | 10,457 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 |
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testcase_00 | TLE | - |
testcase_01 | -- | - |
testcase_02 | -- | - |
testcase_03 | -- | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
ソースコード
#include <bits/stdc++.h> #if __has_include(<atcoder/all>) #include <atcoder/all> using namespace atcoder; #endif using namespace std; #pragma GCC target("avx2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #define ll long long #define forin(in, n) \ for (ll i = 0; i < n; i++) \ cin >> in[i] #define forout(out) \ for (ll i = 0; i < (ll)out.size(); i++) \ cout << out[i] << endl #define rep(i, n) for (ll i = 0; i < n; ++i) #define rep_up(i, a, n) for (ll i = a; i < n; ++i) #define rep_down(i, a, n) for (ll i = a; i >= n; --i) #define P pair<ll, ll> #define pb push_back #define endl "\n" #define all(v) v.begin(), v.end() #define fi first #define se second #define vvvvll vector< vector <vector <vector<ll> > > > #define vvvll vector< vector< vector<ll> > > #define vvll vector< vector<ll> > #define vll vector<ll> #define pqll priority_queue<ll> #define pqllg priority_queue<ll, vector<ll>, greater<ll>> template<class T> inline void vin(vector<T>& v) { rep(i, v.size()) cin >> v.at(i); } template <class T> using V = vector<T>; constexpr ll INF = (1ll << 60); //constexpr ll mod = 1000000007; constexpr ll mod = 998244353; constexpr double pi = 3.14159265358979323846; template <typename T> inline bool chmax(T &a, T b) { if (a < b) { a = b; return 1; } return 0; } template <typename T> inline bool chmin(T &a, T b) { if (a > b) { a = b; return 1; } return 0; } template <typename T> void pt(T val) { cout << val << "\n"; } template <typename T> void pt_vll(vector<T> &v) { ll vs = v.size(); rep(i, vs) { cout << v[i]; if (i == vs - 1) cout << "\n"; else cout << " "; } } ll mypow(ll a, ll n) { ll ret = 1; if (n == 0) return 1; if (a == 0) return 0; rep(i, n) { if (ret > (ll)(9e18 + 10) / a) return -1; ret *= a; } return ret; } long long modpow(long long a, long long n, long long mod) { long long res = 1; while (n > 0) { if (n & 1) res = res * a % mod; a = a * a % mod; n >>= 1; } return res; } long long modinv(long long a, long long m) { long long b = m, u = 1, v = 0; while (b) { long long t = a / b; a -= t * b; swap(a, b); u -= t * v; swap(u, v); } u %= m; if (u < 0) u += m; return u; } struct mint { ll x; constexpr mint(ll x = 0) noexcept : x((x % mod + mod) % mod) {} constexpr mint& operator+=(const mint& a) noexcept { if ((x += a.x) >= mod) x -= mod; return *this; } constexpr mint& operator-=(const mint& a) noexcept { if ((x += mod - a.x) >= mod) x -= mod; return *this; } constexpr mint& operator*=(const mint& a) noexcept { (x *= a.x) %= mod; return *this; } constexpr mint& operator/=(const mint& a) noexcept { return *this *= a.inv(); } constexpr mint operator-() const noexcept { return mint(-x); } constexpr mint operator+(const mint& a) const noexcept { return mint(*this) += a; } constexpr mint operator-(const mint& a) const noexcept { return mint(*this) -= a; } constexpr mint operator*(const mint& a) const noexcept { return mint(*this) *= a; } constexpr mint operator/(const mint& a) const noexcept { return mint(*this) /= a; } constexpr bool operator==(const mint& a) const noexcept { return x == a.x; } constexpr bool operator!=(const mint& a) const noexcept { return x != a.x; } constexpr mint pow(ll n) const { if (n == 0) return 1; mint res = pow(n >> 1); res *= res; if (n & 1) res *= *this; return res; } constexpr mint inv() const { return pow(mod - 2); } friend istream& operator>>(istream& is, mint& a) noexcept { ll v; is >> v; a = mint(v); return is; } friend ostream& operator<<(ostream& os, const mint& a) noexcept { return os << a.x; } }; struct UnionFind { vector<ll> par, size; UnionFind(ll N) : par(N) { //最初はすべてが根であるとして初期化 size.resize(N, 1); for (ll i = 0; i < N; i++) par[i] = i; } ll root(ll x) { //データxの木の根を再帰で得る if (par[x] == x) return x; return par[x] = root(par[x]); } void unite(ll x, ll y) { //xとyの木を併合 ll rx = root(x); ll ry = root(y); if (rx == ry) return; //同じ木にあるときはそのまま if (size[rx] > size[ry]) { par[ry] = rx; size[rx] += size[ry]; } else { par[rx] = ry; size[ry] += size[rx]; } return; } bool same(ll x, ll y) { //2つのデータx,yが属する木が同じならtrue ll rx = root(x); ll ry = root(y); return rx == ry; } ll treesize(ll x) { return size[root(x)]; } }; const int MAX = 2010000; long long fac[MAX], finv[MAX], inv[MAX]; // テーブルを作る前処理 void COMinit() { fac[0] = fac[1] = 1; finv[0] = finv[1] = 1; inv[1] = 1; for (ll i = 2; i < MAX; i++) { fac[i] = fac[i - 1] * i % mod; inv[i] = mod - inv[mod % i] * (mod / i) % mod; finv[i] = finv[i - 1] * inv[i] % mod; } } // 二項係数計算 long long COM(ll n, ll k) { if (n < k) return 0; if (n < 0 || k < 0) return 0; return fac[n] * (finv[k] * finv[n - k] % mod) % mod; } vector<ll> enum_div(ll n) { //約数全列挙 vector<ll> ret; for (ll i = 1; i * i <= n; ++i) { if (n % i == 0) { ret.push_back(i); if (i * i != n) { ret.push_back(n / i); } } } return ret; } void make_prime(vector<ll> &ret, ll n) { //素因数分解 ll x = n; for (ll i = 2; i * i <= x; i++) { while (n % i == 0) { n /= i; ret.push_back(i); } } if (n != 1) { ret.push_back(n); } return; } vector<bool> prime(1000010, true); vector<ll> pri(1000010); vector<bool> isprime(int N) { //素数判定 if (N >= 0) prime[0] = false; if (N >= 1) prime[1] = false; for (ll i = 2; i * i <= N; i++) { if (!prime[i]) { continue; } for (ll j = i * i; j <= N; j += i) { if (prime[j]) pri[j] = i; prime[j] = false; } } return prime; } map<ll,ll> compression(vector<ll> v){ map<ll,ll> ret; ll cnt = 0; sort(v.begin(),v.end()); for(ll i=0; i<v.size(); i++){ if(!ret.count(v[i])){ ret[v[i]] = cnt; cnt++; } } return ret; } //素因数分解: void make_prime(vector<ll> &ret, ll n) //素数判定 : vector<bool> isprime(int N) //約数全列挙: vector<ll> enum_div(ll n) void solve(){ ll n, m, k, cnt = 0, sum = 0, ans = 0; cin>>n; ll x,y; cout<<"? "<<1<<endl; cin>>x; cout<<"? "<<n-1<<endl; cin>>y; ll flag=0; if(y-x==(n-2)/2){ cout<<"! 2 "<<n-1<<endl; return; } if(y-x<(n-2)/2) flag=1; ll mid,s,t; s=1; t=n-1; ll z; while(t-s>1){ mid=(t+s)/2; cout<<"? "<<mid<<endl; cin>>z; if(2*z==mid){ if(mid<n/2){ cout<<"! "<<mid+1<<" "<<n<<endl; }else{ cout<<"! 1 "<<mid<<endl; } return; } if(2*z>mid){ if(flag==1) s=mid; else t=mid; }else{ if(flag==0) s=mid; else t=mid; } } } int main(){ ios::sync_with_stdio(false); cin.tie(nullptr); //cout << fixed << setprecision(16); //ll T; //cin>>T; //rep(ca,T) solve(); }