#pragma GCC optimize("O3")
#pragma GCC optimize("unroll-loops")
#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define pi pair<int,int>
#define vi vector<int>
#define pb push_back
#define all(a) a.begin(),a.end()
const int mxn = 1e6+1;
int st[2*mxn], arr[mxn];
bool res[mxn];
int qu[mxn][2];
vector<int> vec[mxn];
void solve(){
int n,m; cin >> n >> m;
for(int i = 0; i < n; i++) cin >> arr[i];
for(int i = 0; i < m; i++){
int r; cin >> qu[i][0] >> r >> qu[i][1];
qu[i][0]--;
vec[r-1].pb(i);
}
stack<int> sta;
for(int i = 0; i < n; i++){
while(!sta.empty() && arr[sta.top()] <= arr[i])
sta.pop();
if(!sta.empty()){
int j = sta.top();
for(st[j+=n] = arr[sta.top()] + arr[i]; j > 1; j>>=1) st[j>>1] = max(st[j],st[j^1]);
}
sta.push(i);
for(auto j : vec[i]){
int mx = 0;
int l = j, r = i+1;
for(l += n, r += n; l < r; l>>=1, r>>=1){
if(l&1) mx = max(mx,st[l++]);
if(r&1) mx = max(mx,st[--r]);
}
res[j] = mx <= qu[j][1];
}
}
for(int i = 0; i < m; i++) cout << res[i] << '\n';
}
signed main(){
cin.tie(0)->sync_with_stdio(0);
int t = 1;
// cin >> t;
for(int i = 0; i < t; i++){solve();}
}
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |
| # | Verdict | Execution time | Memory | Grader output |
|---|
| Fetching results... |