이 제출은 이전 버전의 oj.uz에서 채점하였습니다. 현재는 제출 당시와는 다른 서버에서 채점을 하기 때문에, 다시 제출하면 결과가 달라질 수도 있습니다.
#include <iostream>
#include <iomanip>
#include <algorithm>
#include <bitset>
#include <set>
#include <unordered_set>
#include <map>
#include <unordered_map>
#include <cmath>
#include <time.h>
#include <random>
#include <string>
#include <cassert>
#include <vector>
#include <ostream>
#include <istream>
#include <stack>
#include <deque>
#include <queue>
#include <functional>
#include <chrono>
#include <stack>
using namespace std;
// #define int long long
#define pb push_back
#define all(a) (a).begin(), (a).end()
#define pii pair<int, int>
#define ld long double
istream& operator>> (istream& in, pii& b) {
in >> b.first >> b.second;
return in;
}
ostream& operator<< (ostream& out, const pii& b) {
out << "{" << b.first << ", " << b.second << "}";
return out;
}
template<typename T> ostream& operator<< (ostream& out, const vector<T>& a) {
for (auto k : a) out << k << " ";
return out;
}
template <typename T1, typename T2> inline bool chkmin(T1 &x, const T2 &y) {if (x > y) {x = y; return 1;} return 0;}
template <typename T1, typename T2> inline bool chkmax(T1 &x, const T2 &y) {if (x < y) {x = y; return 1;} return 0;}
#ifdef LOCAL
#define dbg(x) cout << #x << " : " << (x) << endl;
const long long INF = 1e18;
// const long long mod = 2600000069;
// const long long p = 10;
#else
#define dbg(x) 57
const long long INF = 1e18;
// const long long mod = 2600000069;
// const long long p = 179;
#endif
const ld PI = 4 * atan(1);
#define time clock() / (double) CLOCKS_PER_SEC
// #pragma GCC optimize("Ofast,no-stack-protector")
// #pragma GCC target("sse,sse2,sse3,sse3,sse4")
// #pragma GCC optimize("unroll-loops")
// #pragma GCC optimize("fast-math")
// #pragma GCC target("avx2")
// #pragma GCC optimize("section-anchors")
// #pragma GCC optimize("profile-values,profile-reorder-functions,tracer")
// #pragma GCC optimize("vpt")
// #pragma GCC optimize("rename-registers")
// #pragma GCC optimize("move-loop-invariants")
// #pragma GCC optimize("unswitch-loops")
// #pragma GCC optimize("function-sections")
// #pragma GCC optimize("data-sections")
mt19937 gen(chrono::high_resolution_clock::now().time_since_epoch().count());
const int N = 1e6 + 10;
int n, m;
int a[N];
vector<int> t[4 * N];
int w[4 * N];
void build(int v, int l, int r) {
if (l + 1 == r) {
t[v] = {a[l]};
w[v] = 0;
return;
}
int m = (l + r) / 2;
build(2 * v + 1, l, m);
build(2 * v + 2, m, r);
w[v] = max(w[2 * v + 1], w[2 * v + 2]);
int pos = lower_bound(all(t[2 * v + 2]), t[2 * v + 1].back()) - t[2 * v + 2].begin() - 1;
if (pos >= 0) {
chkmax(w[v], t[2 * v + 1].back() + t[2 * v + 2].back());
}
t[v].resize(r - l);
merge(all(t[2 * v + 1]), all(t[2 * v + 2]), t[v].begin());
}
int cur = 0;
vector<int> ind;
void ask(int v, int l, int r, int askl, int askr) {
if (l >= askr || r <= askl) return;
if (l >= askl && r <= askr) {
ind.pb(v);
chkmax(cur, w[v]);
return;
}
int m = (l + r) / 2;
ask(2 * v + 1, l, m, askl, askr);
ask(2 * v + 2, m, r, askl, askr);
}
signed main() {
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
cin >> n >> m;
for (int i = 0; i < n; i++) {
cin >> a[i];
}
build(0, 0, n);
while (m--) {
int l, r, k;
cin >> l >> r >> k;
cur = 0;
ind.clear();
ask(0, 0, n, l - 1, r);
if (cur > k) {
cout << "0\n";
continue;
}
int mx = 0;
int ans = 1;
for (auto v : ind) {
int pos = lower_bound(all(t[v]), mx) - t[v].begin() - 1;
if (pos >= 0 && t[v][pos] + mx > k) {
ans = 0;
break;
}
chkmax(mx, t[v].back());
}
cout << ans << "\n";
}
}
/*
*/
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