#include <chrono>
#include <random>
#include <iostream>
#include <string>
#include <unordered_map>
#include <cstring>
#include <vector>
#include <map>
#include <set>
#include <algorithm>
#include <math.h>
#include <cstdio>
#include <stdio.h>
#include <queue>
#include <bitset>
#include <cstdlib>
#include <deque>
#include <cassert>
#include <stack>
using namespace std;
#define max3(a, b, c) max(a, max(b, c))
#define min3(a, b, c) min(a, min(b, c))
#define mp make_pair
#define f first
#define se second
#define pb push_back
#define ppb pop_back
#define ll long long
#define ull unsigned long long
#define cntbit(x) __builtin_popcount(x)
#define endl '\n'
#define uset unordered_set
#define umap unordered_map
#define pii pair<int, int>
#define ld long double
#define pll pair<long long, long long>
#define tm abc
mt19937 rng(chrono::steady_clock::now().time_since_epoch().count());
const int mod = 1e9 + 7;
const int inf = 1e9;
const int N = 1e6 + 15;
int n, m, a[N], maxx[N << 2], ans[N];
vector <int> t[N << 2];
struct query {
int l, r, k, ind;
bool operator < (const query &b) const {
return l < b.l;
}
} qs[N];
void build(int v, int tl, int tr) {
if(tl == tr) {
t[v] = {a[tl]};
return;
}
int mid = tl + tr >> 1, l = v << 1, r = v << 1 | 1;
build(v << 1, tl, mid);
build(v << 1 | 1, mid + 1, tr);
maxx[v] = max(maxx[v << 1], maxx[v << 1 | 1]);
int i = 0, j = 0;
for(; i < t[l].size(); ++i) {
if(j && t[l][i] > t[r][j - 1])
maxx[v] = max(maxx[v], t[r][j-1] + t[l][i]);
while(j < t[r].size() && t[r][j] < t[l][i]) {
maxx[v] = max(maxx[v], t[r][j] + t[l][i]);
t[v].pb(t[r][j++]);
}
t[v].pb(t[l][i]);
}
while(j < t[r].size())
t[v].pb(t[r][j++]);
}
int getless(int v, int tl, int tr, int l, int r, int k) {
if(tl > r || tr < l)
return 0;
if(tl >= l && tr <= r) {
int ind = lower_bound(t[v].begin(), t[v].end(), k) - t[v].begin();
if(ind)
return t[v][ind - 1];
return 0;
}
int mid = tl + tr >> 1;
return max(getless(v << 1, tl, mid, l, r, k), getless(v << 1 | 1, mid + 1, tr, l, r, k));
}
int get(int v, int tl, int tr, int l, int r) {
if(tl > r || tr < l)
return 0;
if(tl >= l && tr <= r)
return maxx[v];
int mid = tl + tr >> 1, ans = 0;
if(tl >= l && mid <= r && !t[v << 1].empty()) {
int x = getless(v << 1 | 1, mid + 1, tr, l, r, t[v << 1].back());
if(x)
ans = x + t[v << 1].back();
}
return max3(ans, get(v << 1, tl, mid, l, r), get(v << 1 | 1, mid + 1, tr, l, r));
}
main() {
scanf("%d%d", &n, &m);
for(int i = 1; i <= n; ++i)
scanf("%d", &a[i]);
build(1, 1, n);
for(int i = 1; i <= m; ++i) {
int l, r, k;
scanf("%d%d%d", &l, &r, &k);
puts(get(1, 1, n, l, r) > k ? "0" : "1");
}
return 0;
}
Compilation message
sortbooks.cpp: In function 'void build(int, int, int)':
sortbooks.cpp:60:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = tl + tr >> 1, l = v << 1, r = v << 1 | 1;
~~~^~~~
sortbooks.cpp:65:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(; i < t[l].size(); ++i) {
~~^~~~~~~~~~~~~
sortbooks.cpp:68:17: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(j < t[r].size() && t[r][j] < t[l][i]) {
~~^~~~~~~~~~~~~
sortbooks.cpp:74:13: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
while(j < t[r].size())
~~^~~~~~~~~~~~~
sortbooks.cpp: In function 'int getless(int, int, int, int, int, int)':
sortbooks.cpp:87:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = tl + tr >> 1;
~~~^~~~
sortbooks.cpp: In function 'int get(int, int, int, int, int)':
sortbooks.cpp:96:18: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
int mid = tl + tr >> 1, ans = 0;
~~~^~~~
sortbooks.cpp: At global scope:
sortbooks.cpp:105:6: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
main() {
^
sortbooks.cpp: In function 'int main()':
sortbooks.cpp:106:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d", &n, &m);
~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:108:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d", &a[i]);
~~~~~^~~~~~~~~~~~~
sortbooks.cpp:112:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
scanf("%d%d%d", &l, &r, &k);
~~~~~^~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
86 ms |
94200 KB |
Output is correct |
| 2 |
Correct |
96 ms |
94328 KB |
Output is correct |
| 3 |
Incorrect |
91 ms |
94328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
86 ms |
94200 KB |
Output is correct |
| 2 |
Correct |
96 ms |
94328 KB |
Output is correct |
| 3 |
Incorrect |
91 ms |
94328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Execution timed out |
3059 ms |
237784 KB |
Time limit exceeded |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
363 ms |
109896 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
86 ms |
94200 KB |
Output is correct |
| 2 |
Correct |
96 ms |
94328 KB |
Output is correct |
| 3 |
Incorrect |
91 ms |
94328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
86 ms |
94200 KB |
Output is correct |
| 2 |
Correct |
96 ms |
94328 KB |
Output is correct |
| 3 |
Incorrect |
91 ms |
94328 KB |
Output isn't correct |
| 4 |
Halted |
0 ms |
0 KB |
- |
