#include <bits/stdc++.h>
using namespace std;
#define pb push_back
#define mp make_pair
typedef long long ll;
typedef pair<long long, long long> pll;
typedef pair<int,int> pii;
typedef vector<long long> vl;
typedef vector<int> vi;
int n, m;
vi arr;
struct Node{
int pref_max;
int val;
// maximize pref_max + val;
} tree[4 * 100100];
Node combine(Node a, Node b){
Node ret = a;
if(a.pref_max + b.val >= ret.pref_max + ret.val && a.pref_max > b.val){
ret.pref_max = a.pref_max;
ret.val = b.val;
}
if(b.pref_max + b.val >= ret.pref_max + ret.val)
ret = b;
if(a.val + b.val >= ret.pref_max + ret.val && a.val > b.val){
ret.pref_max = a.val;
ret.val = b.val;
}
if(ret.pref_max == 0){
ret.val = max(a.val, b.val);
}
return ret;
}
void build(int node, int l, int r){
if(l == r){
Node s;
s.pref_max = 0;
s.val = arr[l];
tree[node] = s;
}
else{
int mid = (l + r) / 2;
build(node*2, l, mid);
build(node*2+1, mid+1, r);
tree[node] = combine(tree[node*2], tree[node*2+1]);
}
}
Node query(int node, int l, int r, int L, int R){
if(r < L || l > R){
Node empty;
empty.pref_max = empty.val = -1;
return empty;
}
if(L <= l && r <= R){
return tree[node];
}
int mid = (l + r) / 2;
Node left = query(node*2, l, mid, L, R);
Node right = query(node*2+1, mid+1, r, L, R);
if(left.val == -1) return right;
if(right.val == -1) return left;
Node tog = combine(left, right);
//cout<<left.pref_max<<" "<<left.val<<" "<<right.pref_max<<" "<<right.val<<" "<<tog.pref_max<<" "<<tog.val<<endl;
return tog;
}
int main(){
ios_base::sync_with_stdio(false);
cin.tie(0);
cin>>n>>m;
for(int i = 0; i < n; i++){
int a;
cin>>a;
arr.pb(a);
}
vi pregrada;
for(int i = 0; i < n; i++){
int j =i;
pregrada.pb(i);
while(j + 1 < n && arr[j] <= arr[j+1]){
j++;
}
if(j == n-1) pregrada.pb(n);
i = j;
}
build(1, 0, n-1);
while(m--){
int l, r, k;
cin>>l>>r>>k;
l--;r--;
int left_border = -1, right_border = -1;
int levo = 0, desno = pregrada.size()-1;
while(levo <= desno){
int mid = (levo + desno) / 2;
if(pregrada[mid] <= l){
left_border = mid;
levo = mid + 1;
}
else
desno = mid - 1;
}
levo = 0; desno = pregrada.size()-1;
while(levo <= desno){
int mid = (levo + desno) / 2;
if(pregrada[mid] > r){
right_border = mid;
desno = mid - 1;
}
else
levo = mid + 1;
}
if(abs(left_border - right_border) == 1)
cout<<1<<"\n";
else{
Node here = query(1, 0, n-1, l, r);
//cout<<l<<" "<<r<<" "<<here.pref_max<<" "<<here.val<<endl;
if(here.pref_max + here.val > k) cout<<0<<"\n";
else cout<<1<<"\n";
}
}
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
87 ms |
16428 KB |
Execution killed with signal 11 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
93 ms |
3368 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
212 KB |
Output is correct |
| 2 |
Correct |
0 ms |
212 KB |
Output is correct |
| 3 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
