| # | Time | Username | Problem | Language | Result | Execution time | Memory |
|---|---|---|---|---|---|---|---|
| 487532 | freddy645645 | Hedgehog Daniyar and Algorithms (IZhO19_sortbooks) | C++17 | 0 ms | 0 KiB |
This submission is migrated from previous version of oj.uz, which used different machine for grading. This submission may have different result if resubmitted.
using namespace std;
template<typename T1, typename T2>inline void chkmin(T1 &x, T2 y) { if (x > y) x = y; }
template<typename T1, typename T2>inline void chkmax(T1 &x, T2 y) { if (x < y) x = y; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const pair<T, U> &_p) { _out << _p.first << ' ' << _p.second; return _out; }
template<typename T, typename U> inline istream &operator>> (istream &_in, pair<T, U> &_p) { _in >> _p.first >> _p.second; return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const vector<T> &_v) { if (_v.empty()) { return _out; } _out << _v.front(); for (auto _it = ++_v.begin(); _it != _v.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline istream &operator>> (istream &_in, vector<T> &_v) { for (auto &_i : _v) { _in >> _i; } return _in; }
template<typename T> inline ostream &operator<< (ostream &_out, const set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_set<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T> inline ostream &operator<< (ostream &_out, const unordered_multiset<T> &_s) { if (_s.empty()) { return _out; } _out << *_s.begin(); for (auto _it = ++_s.begin(); _it != _s.end(); ++_it) { _out << ' ' << *_it; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
template<typename T, typename U> inline ostream &operator<< (ostream &_out, const unordered_map<T, U> &_m) { if (_m.empty()) { return _out; } _out << '(' << _m.begin()->first << ": " << _m.begin()->second << ')'; for (auto _it = ++_m.begin(); _it != _m.end(); ++_it) { _out << ", (" << _it->first << ": " << _it->second << ')'; } return _out; }
#define sz(c) (int)(c).size()
#define all(c) (c).begin(), (c).end()
#define rall(c) (c).rbegin(), (c).rend()
#define left left228
#define right right228
#define rank rank228
#define y1 y1228
#define read(FILENAME) freopen((FILENAME + ".in").c_str(), "r", stdin)
#define write(FILENAME) freopen((FILENAME + ".out").c_str(), "w", stdout)
#define files(FILENAME) read(FILENAME), write(FILENAME)
#define pb push_back
const string FILENAME = "input";
const int MAXN = 1000508;
#define _getchar_nolock getchar
char readchar() {
char c = _getchar_nolock();
while (c <= 33) {
c = _getchar_nolock();
}
return c;
}
int readint() {
char c = _getchar_nolock();
while (c <= 33) {
c = _getchar_nolock();
}
bool sign = false;
if (c == '-') {
sign = true;
c = _getchar_nolock();
}
int t = 0;
while (c >= '0' && c <= '9') {
t = (t << 3) + (t << 1) + c - '0';
c = _getchar_nolock();
}
return (sign ? -t: t);
}
int n, k;
int a[MAXN];
int fen[MAXN];
int ans[MAXN];
void inc(int i, int val) {
fen[i] = val;
for (int j = i; j < n; j |= (j + 1)) {
chkmax(fen[j], val);
}
}
int get(int i) {
int res = 0;
for (int j = i; j >= 0; j = (j & (j + 1)) - 1) {
chkmax(res, fen[j]);
}
return res;
}
vector<pair<pair<int, int>, int> > z[MAXN];
int main() {
ios_base::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
// read(FILENAME);
n = readint(), k = readint();
for (int i = 0; i < n; i++) {
a[i] = readint();
}
vector<int> g;
vector<pair<int, int> > kek;
for (int i = 0; i < n; i++) {
while (!g.empty() && a[g.back()] <= a[i]) {
g.pop_back();
}
if (!g.empty()) {
kek.pb({g.back(), i});
}
g.pb(i);
}
sort(all(kek));
for (int i = 0; i < k; i++) {
int l = readint(), r = readint(), x = readint();
z[l - 1].pb({{r - 1, x}, i});
}
int uk = sz(kek) - 1;
for (int i = n - 1; i >= 0; i--) {
while (uk >= 0 && kek[uk].first >= i) {
inc(kek[uk].second, a[kek[uk].first] + a[kek[uk].second]);
uk--;
}
for (auto x: z[i]) {
ans[x.second] = get(x.first.first) <= x.first.second;
}
}
for (int i = 0; i < k; i++) {
cout << ans[i] << '\n';
}
return 0;
}