#include <bits/stdc++.h>
using namespace std;
const int INF = 1e9;
struct SGT {
int n;
vector<int> tree;
SGT(int _n) {
n = _n;
tree.resize(4 * n, 0);
}
void update(int node, int l, int r, int idx, int x) {
if (l == r) tree[node] = x;
else {
int mid = (l + r) / 2;
if (idx <= mid) update(2 * node, l, mid, idx, x);
else update(2 * node + 1, mid + 1, r, idx, x);
tree[node] = max(tree[2 * node], tree[2 * node + 1]);
}
}
int query(int node, int l, int r, int L, int R) {
if (R < l or r < L) return 0;
else if (L <= l and r <= R) return tree[node];
else{
int mid = (l + r) / 2;
return max(query(2 * node, l, mid, L, R), query(2 * node + 1, mid + 1, r, L, R));
}
}
};
int n, m;
vector<int> a, ans;
vector<pair<int, int>> q;
vector<vector<int>> r2q;
void solve() {
ans.resize(m);
SGT sgt = SGT(n);
stack<int> st;
for (int r = 0; r < n; r++) {
while (not st.empty() and a[st.top()] <= a[r]) st.pop();
if (not st.empty()) sgt.update(1, 0, n - 1, st.top(), a[st.top()] + a[r]);
st.push(r);
for (int qi : r2q[r]) {
auto [l, k] = q[qi];
ans[qi] = (k >= sgt.query(1, 0, n - 1, l, r));
}
}
}
int main() {
ios_base::sync_with_stdio(false);
cin.tie(NULL);
cin >> n >> m;
a.resize(n);
for (int &x : a) {
cin >> x;
}
q.resize(m), r2q.resize(n);
for (int i = 0; i < m; i++) {
int l, r, k;
cin >> l >> r >> k;
l--, r--;
q[i] = make_pair(l, k);
r2q[r].push_back(i);
}
solve();
for (int i = 0; i < m; i++) {
cout << ans[i] << '\n';
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
2 ms |
348 KB |
Output is correct |
12 |
Correct |
2 ms |
604 KB |
Output is correct |
13 |
Correct |
3 ms |
604 KB |
Output is correct |
14 |
Correct |
3 ms |
604 KB |
Output is correct |
15 |
Correct |
3 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
604 KB |
Output is correct |
17 |
Correct |
2 ms |
604 KB |
Output is correct |
18 |
Correct |
3 ms |
604 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1138 ms |
73152 KB |
Output is correct |
2 |
Correct |
1099 ms |
106264 KB |
Output is correct |
3 |
Correct |
1101 ms |
105996 KB |
Output is correct |
4 |
Correct |
1114 ms |
106148 KB |
Output is correct |
5 |
Correct |
972 ms |
106140 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
62 ms |
7804 KB |
Output is correct |
2 |
Correct |
57 ms |
8532 KB |
Output is correct |
3 |
Correct |
59 ms |
9308 KB |
Output is correct |
4 |
Correct |
54 ms |
9308 KB |
Output is correct |
5 |
Correct |
61 ms |
9364 KB |
Output is correct |
6 |
Correct |
44 ms |
8272 KB |
Output is correct |
7 |
Correct |
44 ms |
8284 KB |
Output is correct |
8 |
Correct |
59 ms |
9176 KB |
Output is correct |
9 |
Correct |
25 ms |
3532 KB |
Output is correct |
10 |
Correct |
48 ms |
8900 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
2 ms |
348 KB |
Output is correct |
12 |
Correct |
2 ms |
604 KB |
Output is correct |
13 |
Correct |
3 ms |
604 KB |
Output is correct |
14 |
Correct |
3 ms |
604 KB |
Output is correct |
15 |
Correct |
3 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
604 KB |
Output is correct |
17 |
Correct |
2 ms |
604 KB |
Output is correct |
18 |
Correct |
3 ms |
604 KB |
Output is correct |
19 |
Correct |
158 ms |
18772 KB |
Output is correct |
20 |
Correct |
157 ms |
21252 KB |
Output is correct |
21 |
Correct |
132 ms |
19268 KB |
Output is correct |
22 |
Correct |
137 ms |
19152 KB |
Output is correct |
23 |
Correct |
152 ms |
19276 KB |
Output is correct |
24 |
Correct |
111 ms |
19012 KB |
Output is correct |
25 |
Correct |
120 ms |
18880 KB |
Output is correct |
26 |
Correct |
137 ms |
20016 KB |
Output is correct |
27 |
Correct |
140 ms |
20176 KB |
Output is correct |
28 |
Correct |
122 ms |
20264 KB |
Output is correct |
29 |
Correct |
133 ms |
21244 KB |
Output is correct |
30 |
Correct |
132 ms |
21012 KB |
Output is correct |
31 |
Correct |
137 ms |
21184 KB |
Output is correct |
32 |
Correct |
126 ms |
21076 KB |
Output is correct |
33 |
Correct |
128 ms |
21072 KB |
Output is correct |
34 |
Correct |
115 ms |
18776 KB |
Output is correct |
35 |
Correct |
103 ms |
18748 KB |
Output is correct |
36 |
Correct |
101 ms |
18440 KB |
Output is correct |
37 |
Correct |
104 ms |
18512 KB |
Output is correct |
38 |
Correct |
100 ms |
18768 KB |
Output is correct |
39 |
Correct |
120 ms |
19412 KB |
Output is correct |
40 |
Correct |
101 ms |
15304 KB |
Output is correct |
41 |
Correct |
112 ms |
19144 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
0 ms |
348 KB |
Output is correct |
2 |
Correct |
0 ms |
348 KB |
Output is correct |
3 |
Correct |
1 ms |
348 KB |
Output is correct |
4 |
Correct |
0 ms |
348 KB |
Output is correct |
5 |
Correct |
0 ms |
348 KB |
Output is correct |
6 |
Correct |
1 ms |
348 KB |
Output is correct |
7 |
Correct |
1 ms |
348 KB |
Output is correct |
8 |
Correct |
1 ms |
348 KB |
Output is correct |
9 |
Correct |
1 ms |
600 KB |
Output is correct |
10 |
Correct |
1 ms |
344 KB |
Output is correct |
11 |
Correct |
2 ms |
348 KB |
Output is correct |
12 |
Correct |
2 ms |
604 KB |
Output is correct |
13 |
Correct |
3 ms |
604 KB |
Output is correct |
14 |
Correct |
3 ms |
604 KB |
Output is correct |
15 |
Correct |
3 ms |
604 KB |
Output is correct |
16 |
Correct |
3 ms |
604 KB |
Output is correct |
17 |
Correct |
2 ms |
604 KB |
Output is correct |
18 |
Correct |
3 ms |
604 KB |
Output is correct |
19 |
Correct |
1138 ms |
73152 KB |
Output is correct |
20 |
Correct |
1099 ms |
106264 KB |
Output is correct |
21 |
Correct |
1101 ms |
105996 KB |
Output is correct |
22 |
Correct |
1114 ms |
106148 KB |
Output is correct |
23 |
Correct |
972 ms |
106140 KB |
Output is correct |
24 |
Correct |
62 ms |
7804 KB |
Output is correct |
25 |
Correct |
57 ms |
8532 KB |
Output is correct |
26 |
Correct |
59 ms |
9308 KB |
Output is correct |
27 |
Correct |
54 ms |
9308 KB |
Output is correct |
28 |
Correct |
61 ms |
9364 KB |
Output is correct |
29 |
Correct |
44 ms |
8272 KB |
Output is correct |
30 |
Correct |
44 ms |
8284 KB |
Output is correct |
31 |
Correct |
59 ms |
9176 KB |
Output is correct |
32 |
Correct |
25 ms |
3532 KB |
Output is correct |
33 |
Correct |
48 ms |
8900 KB |
Output is correct |
34 |
Correct |
158 ms |
18772 KB |
Output is correct |
35 |
Correct |
157 ms |
21252 KB |
Output is correct |
36 |
Correct |
132 ms |
19268 KB |
Output is correct |
37 |
Correct |
137 ms |
19152 KB |
Output is correct |
38 |
Correct |
152 ms |
19276 KB |
Output is correct |
39 |
Correct |
111 ms |
19012 KB |
Output is correct |
40 |
Correct |
120 ms |
18880 KB |
Output is correct |
41 |
Correct |
137 ms |
20016 KB |
Output is correct |
42 |
Correct |
140 ms |
20176 KB |
Output is correct |
43 |
Correct |
122 ms |
20264 KB |
Output is correct |
44 |
Correct |
133 ms |
21244 KB |
Output is correct |
45 |
Correct |
132 ms |
21012 KB |
Output is correct |
46 |
Correct |
137 ms |
21184 KB |
Output is correct |
47 |
Correct |
126 ms |
21076 KB |
Output is correct |
48 |
Correct |
128 ms |
21072 KB |
Output is correct |
49 |
Correct |
115 ms |
18776 KB |
Output is correct |
50 |
Correct |
103 ms |
18748 KB |
Output is correct |
51 |
Correct |
101 ms |
18440 KB |
Output is correct |
52 |
Correct |
104 ms |
18512 KB |
Output is correct |
53 |
Correct |
100 ms |
18768 KB |
Output is correct |
54 |
Correct |
120 ms |
19412 KB |
Output is correct |
55 |
Correct |
101 ms |
15304 KB |
Output is correct |
56 |
Correct |
112 ms |
19144 KB |
Output is correct |
57 |
Correct |
1254 ms |
105084 KB |
Output is correct |
58 |
Correct |
1114 ms |
104844 KB |
Output is correct |
59 |
Correct |
1020 ms |
100688 KB |
Output is correct |
60 |
Correct |
1047 ms |
100688 KB |
Output is correct |
61 |
Correct |
964 ms |
100660 KB |
Output is correct |
62 |
Correct |
914 ms |
100860 KB |
Output is correct |
63 |
Correct |
598 ms |
93012 KB |
Output is correct |
64 |
Correct |
608 ms |
93112 KB |
Output is correct |
65 |
Correct |
784 ms |
100536 KB |
Output is correct |
66 |
Correct |
791 ms |
100112 KB |
Output is correct |
67 |
Correct |
879 ms |
100476 KB |
Output is correct |
68 |
Correct |
952 ms |
105060 KB |
Output is correct |
69 |
Correct |
921 ms |
104924 KB |
Output is correct |
70 |
Correct |
952 ms |
104528 KB |
Output is correct |
71 |
Correct |
1046 ms |
104108 KB |
Output is correct |
72 |
Correct |
933 ms |
104124 KB |
Output is correct |
73 |
Correct |
569 ms |
91212 KB |
Output is correct |
74 |
Correct |
536 ms |
91904 KB |
Output is correct |
75 |
Correct |
527 ms |
91048 KB |
Output is correct |
76 |
Correct |
550 ms |
90996 KB |
Output is correct |
77 |
Correct |
563 ms |
91216 KB |
Output is correct |
78 |
Correct |
862 ms |
97096 KB |
Output is correct |
79 |
Correct |
579 ms |
69588 KB |
Output is correct |
80 |
Correct |
811 ms |
94876 KB |
Output is correct |