//#pragma GCC optimize("Ofast,unroll-loops,fast-math,O3")
//#pragma GCC target( "sse,sse2,sse3,ssse3,sse4,popcnt,abm,mmx,avx,avx2,tune=native")
#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#define ordered_set tree<ll,null_type,less<ll>,rb_tree_tag,tree_order_statistics_node_update>
#define len(x) (int)x.size()
#define ull unsigned long long
#define F first
#define S second
#define pb push_back
#define pf push_front
#define popb pop_back
#define popf pop_front
#define int long long
#define ld long double
#define pii pair<int,int>
#define mii map<int,int>
using namespace std;
using namespace __gnu_pbds;
using ll = long long;
const int N = 1e6 + 5;
const int MOD = 1e9 + 7;
const ll INF = 1e18;
const ll inf = 1e9;
int n,q,a[N],c[N],lg[N],sp[21][N],s[21][N];
// vector <int> p[1005];
signed main(){
// freopen("txt.in", "r", stdin);
// freopen("txt.out", "w", stdout);
ios_base::sync_with_stdio(0);
cin.tie(0);
cin >> n >> q;
lg[2] = 1;
for (int i=1;i<=n;i++){
if (!lg[i]) lg[i] = lg[i-1];
if (i*2<=n) lg[i*2] = lg[i] + 1;
}
int mn = 1e18,mx = 0;
for (int i=1;i<=n;i++){
cin >> a[i];
s[0][i] = a[i];
mn = min(mn, a[i]);
mx = max(mx, a[i]);
}
for (int i=1;i<n;i++){
if (a[i]<=a[i+1]) {
c[i] = 1;
}
sp[0][i] = c[i];
}
for (int i=1;i<=20;i++){
for (int j=1;j<=n;j++){
int d = (1<<(i-1));
sp[i][j] = min(sp[i-1][j], sp[i-1][j+d]);
s[i][j] = max(s[i-1][j], s[i-1][j+d]);
}
}
while(q--){
int ll,rr,k;
cin >> ll >> rr >> k;
if (ll==rr){
cout << 1 << '\n';
continue;
}
int l = ll;
int r = rr-1;
while(l<=r){
int md = (l + r) / 2;
int x = lg[(rr-1)-md+1];
int cur = min(sp[x][md], sp[x][(rr-1)-(1<<x)+1]);
if (cur==1){
r = md - 1;
}
else{
l = md + 1;
}
}
if (ll==l){
cout << 1 << '\n';
continue;
}
if (k < mn){
cout << 0 << '\n';
continue;
}
// if (mx <= 1000){
// int res = 0;
// for (int i=1;i<=mx;i++){
// l = 0;
// r = len(p[i]) - 1;
// while(l<=r){
// int md = (l + r) / 2;
// if (p[i][md] < ll){
// l = md + 1;
// }
// else{
// r = md - 1;
// }
// }
// if (l<len(p[i]) && p[i][l]>=ll && p[i][l]<=rr){
// int x = lg[p[i][l] - ll + 1];
// int cur = max(s[x][ll], s[x][p[i][l]-(1<<x)+1]);
// if (cur > i) res = max(res, cur + i);
// }
// }
// if (res <= k){
// cout << 1 << '\n';
// }
// else{
// cout << 0 << '\n';
// }
// }
// else{
// int res = 0;
// for (int i=ll+1;i<=rr;i++){
// int x = lg[i-ll+1];
// int cur = max(s[x][ll], s[x][i-(1<<x)+1]);
// if (cur > a[i]){
// res = max(res, cur + a[i]);
// }
// }
// cout << res << '\n';
// if (res<=k){
// cout << 1 << '\n';
// }
// else{
// cout << 0 << '\n';
// }
// }
}
}
//order_of_key(k): Number of items strictly smaller than k .
//find_by_order(k): K-th element in a set (counting from zero).
//sum of squares n*(n+1)*(2n+1)/6
//sum of cubes [n*(n+1)/2]^2
//sum of squares for odds n*(4*n*n-1)/3
//sum of cubes for odds n*n*(2*n*n-1)
//a/b%mod = a*(b^(m-2)%mod)
//(a>>x)&1 == 0
//a^b = (a+b)-2(a&b)
//srand(time(0))-always changing
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
90712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
90712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Runtime error |
150 ms |
262144 KB |
Execution killed with signal 9 |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
53 ms |
125932 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
90712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
17 ms |
90712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
