結果

問題 No.1332 Range Nearest Query
ユーザー heno239
提出日時 2021-01-08 21:53:42
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 291 ms / 2,500 ms
コード長 5,223 bytes
コンパイル時間 2,337 ms
コンパイル使用メモリ 164,448 KB
最終ジャッジ日時 2025-01-17 11:51:12
ジャッジサーバーID
(参考情報)
judge2 / judge3
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ファイルパターン 結果
other AC * 48
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ソースコード

diff #
プレゼンテーションモードにする

#pragma GCC optimize("Ofast")
//#pragma GCC target ("sse4")
#include<iostream>
#include<string>
#include<cstdio>
#include<vector>
#include<cmath>
#include<algorithm>
#include<functional>
#include<iomanip>
#include<queue>
#include<ciso646>
#include<random>
#include<map>
#include<set>
#include<bitset>
#include<stack>
#include<unordered_map>
#include<unordered_set>
#include<utility>
#include<cassert>
#include<complex>
#include<numeric>
#include<array>
using namespace std;
//#define int long long
typedef long long ll;
typedef unsigned long long ul;
typedef unsigned int ui;
constexpr ll mod = 1000000007;
const ll INF = mod * mod;
typedef pair<int, int>P;
#define stop char nyaa;cin>>nyaa;
#define rep(i,n) for(int i=0;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define Rep(i,sta,n) for(int i=sta;i<n;i++)
#define rep1(i,n) for(int i=1;i<=n;i++)
#define per1(i,n) for(int i=n;i>=1;i--)
#define Rep1(i,sta,n) for(int i=sta;i<=n;i++)
#define all(v) (v).begin(),(v).end()
typedef pair<ll, ll> LP;
typedef double ld;
typedef pair<ld, ld> LDP;
const ld eps = 1e-12;
const ld pi = acosl(-1.0);
ll mod_pow(ll x, ll n, ll m = mod) {
if (n < 0) {
ll res = mod_pow(x, -n, m);
return mod_pow(res, m - 2, m);
}
if (abs(x) >= m)x %= m;
if (x < 0)x += m;
ll res = 1;
while (n) {
if (n & 1)res = res * x % m;
x = x * x % m; n >>= 1;
}
return res;
}
struct modint {
ll n;
modint() :n(0) { ; }
modint(ll m) :n(m) {
if (n >= mod)n %= mod;
else if (n < 0)n = (n % mod + mod) % mod;
}
operator int() { return n; }
};
bool operator==(modint a, modint b) { return a.n == b.n; }
modint operator+=(modint& a, modint b) { a.n += b.n; if (a.n >= mod)a.n -= mod; return a; }
modint operator-=(modint& a, modint b) { a.n -= b.n; if (a.n < 0)a.n += mod; return a; }
modint operator*=(modint& a, modint b) { a.n = ((ll)a.n * b.n) % mod; return a; }
modint operator+(modint a, modint b) { return a += b; }
modint operator-(modint a, modint b) { return a -= b; }
modint operator*(modint a, modint b) { return a *= b; }
modint operator^(modint a, ll n) {
if (n == 0)return modint(1);
modint res = (a * a) ^ (n / 2);
if (n % 2)res = res * a;
return res;
}
ll inv(ll a, ll p) {
return (a == 1 ? 1 : (1 - p * inv(p % a, a)) / a + p);
}
modint operator/(modint a, modint b) { return a * modint(inv(b, mod)); }
modint operator/=(modint& a, modint b) { a = a / b; return a; }
const int max_n = 1 << 17;
modint fact[max_n], factinv[max_n];
void init_f() {
fact[0] = modint(1);
for (int i = 0; i < max_n - 1; i++) {
fact[i + 1] = fact[i] * modint(i + 1);
}
factinv[max_n - 1] = modint(1) / fact[max_n - 1];
for (int i = max_n - 2; i >= 0; i--) {
factinv[i] = factinv[i + 1] * modint(i + 1);
}
}
modint comb(int a, int b) {
if (a < 0 || b < 0 || a < b)return 0;
return fact[a] * factinv[b] * factinv[a - b];
}
modint combP(int a, int b) {
if (a < 0 || b < 0 || a < b)return 0;
return fact[a] * factinv[a - b];
}
template<typename T>
struct SegT {
private:
int sz; vector<T> node;
T init_c;
function<T(T, T)> f;
public:
SegT(vector<T> v, T _init_c, function<T(T, T)> _f) {
init_c = _init_c; f = _f;
int n = v.size();
sz = 1;
while (sz < n)sz *= 2;
node.resize(2 * sz - 1, init_c);
rep(i, n) {
node[i + sz - 1] = v[i];
}
per(i, sz - 1) {
node[i] = f(node[2 * i + 1], node[2 * i + 2]);
}
}
SegT(int n, T _init_c, function<T(T, T)> _f) {
init_c = _init_c; f = _f;
sz = 1;
while (sz < n)sz *= 2;
node.resize(2 * sz - 1, init_c);
}
void update(int k, T a) {
k += sz - 1;
node[k] = a;
while (k > 0) {
k = (k - 1) / 2;
node[k] = f(node[k * 2 + 1], node[k * 2 + 2]);
}
}
T query(int a, int b, int k = 0, int l = 0, int r = -1) {
if (r < 0)r = sz;
if (r <= a || b <= l)return init_c;
else if (a <= l && r <= b)return node[k];
else {
T vl = query(a, b, k * 2 + 1, l, (l + r) / 2);
T vr = query(a, b, k * 2 + 2, (l + r) / 2, r);
return f(vl, vr);
}
}
};
void solve() {
int n; cin >> n;
vector<int> a(n); rep(i, n)cin >> a[i];
int q; cin >> q;
vector<int> l(q), r(q), x(q);
rep(i, q) {
cin >> l[i] >> r[i] >> x[i]; l[i]--; r[i]--;
}
vector<P> vs;
rep(i, n)vs.push_back({ a[i],i });
sort(all(vs));
vector<P> qs;
rep(i, q) {
qs.push_back({ x[i],i });
}
sort(all(qs));
int loc = 0;
vector<int> ans(q, mod);
auto ma = [&](int a, int b) {return max(a, b); };
SegT<int> stma(n, -mod, ma);
rep(i, qs.size()) {
while (loc < n && vs[loc].first <= qs[i].first) {
stma.update(vs[loc].second, vs[loc].first);
loc++;
}
int id = qs[i].second;
int val = stma.query(l[id], r[id] + 1);
ans[id] = min(ans[id], x[id] - val);
}
auto mi = [&](int a, int b) {return min(a, b); };
SegT<int> stmi(n, 2*mod, mi);
reverse(all(vs));
loc = 0;
reverse(all(qs));
rep(i, qs.size()) {
while (loc < n && vs[loc].first >= qs[i].first) {
stmi.update(vs[loc].second, vs[loc].first);
loc++;
}
int id = qs[i].second;
int val = stmi.query(l[id], r[id] + 1);
ans[id] = min(ans[id], val - x[id]);
}
rep(i, q)cout << ans[i] << "\n";
}
signed main() {
ios::sync_with_stdio(false);
cin.tie(0);
//cout << fixed << setprecision(15);
//init_f();
//init();
//expr();
//int t; cin >> t; rep(i, t)
solve();
return 0;
}
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