#include <bits/stdc++.h>
#define pb push_back
using namespace std;
const int N = 1e6 + 5;
int n, m;
int a[N], u[N], v[N], k[N];
vector <int> ask[N];
int ans[N];
int Max[4 * N];
void upd(int s, int l, int r, int u, int v, int val){
if (u <= l && r <= v){
Max[s] = max(Max[s], val);
return;
}
int mid = l + r >> 1;
if (mid >= u) upd(2 * s, l, mid, u, v, val);
if (mid + 1 <= v) upd(2 * s + 1, mid + 1, r, u, v, val);
}
int get(int s, int l, int r, int u){
if (l == r) return Max[s];
int mid = l + r >> 1;
if (mid >= u) return max(Max[s], get(2 * s, l, mid, u));
return max(Max[s], get(2 * s + 1, mid + 1, r, u));
}
void solve(){
cin >> n >> m;
for (int i = 1; i <= n; ++ i) cin >> a[i];
for (int i = 1; i <= m; ++ i){
cin >> u[i] >> v[i] >> k[i];
ask[v[i]].pb(i);
}
stack <int> st;
for (int i = 1; i <= n; ++ i){
while (!st.empty() && a[st.top()] <= a[i]) st.pop();
if (!st.empty()) upd(1, 1, n, 1, st.top(), a[i] + a[st.top()]);
st.push(i);
for (int z : ask[i]) if (get(1, 1, n, u[z]) <= k[z]) ans[z] = 1;
}
for (int i = 1; i <= m; ++ i) cout << ans[i] << '\n';
}
int main(){
ios_base::sync_with_stdio(0);
cin.tie(0);
cout.tie(0);
solve();
return 0;
}
Compilation message
sortbooks.cpp: In function 'void upd(int, int, int, int, int, int)':
sortbooks.cpp:21:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
21 | int mid = l + r >> 1;
| ~~^~~
sortbooks.cpp: In function 'int get(int, int, int, int)':
sortbooks.cpp:28:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
28 | int mid = l + r >> 1;
| ~~^~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
33112 KB |
Output is correct |
2 |
Correct |
6 ms |
33116 KB |
Output is correct |
3 |
Correct |
7 ms |
33116 KB |
Output is correct |
4 |
Correct |
7 ms |
33112 KB |
Output is correct |
5 |
Correct |
6 ms |
33116 KB |
Output is correct |
6 |
Correct |
7 ms |
33204 KB |
Output is correct |
7 |
Correct |
7 ms |
33116 KB |
Output is correct |
8 |
Correct |
9 ms |
33116 KB |
Output is correct |
9 |
Correct |
8 ms |
33116 KB |
Output is correct |
10 |
Correct |
7 ms |
33116 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
33112 KB |
Output is correct |
2 |
Correct |
6 ms |
33116 KB |
Output is correct |
3 |
Correct |
7 ms |
33116 KB |
Output is correct |
4 |
Correct |
7 ms |
33112 KB |
Output is correct |
5 |
Correct |
6 ms |
33116 KB |
Output is correct |
6 |
Correct |
7 ms |
33204 KB |
Output is correct |
7 |
Correct |
7 ms |
33116 KB |
Output is correct |
8 |
Correct |
9 ms |
33116 KB |
Output is correct |
9 |
Correct |
8 ms |
33116 KB |
Output is correct |
10 |
Correct |
7 ms |
33116 KB |
Output is correct |
11 |
Correct |
9 ms |
33424 KB |
Output is correct |
12 |
Correct |
8 ms |
33372 KB |
Output is correct |
13 |
Correct |
9 ms |
33524 KB |
Output is correct |
14 |
Correct |
9 ms |
33372 KB |
Output is correct |
15 |
Correct |
9 ms |
33372 KB |
Output is correct |
16 |
Correct |
9 ms |
33528 KB |
Output is correct |
17 |
Correct |
9 ms |
33368 KB |
Output is correct |
18 |
Correct |
10 ms |
33372 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
956 ms |
72736 KB |
Output is correct |
2 |
Correct |
915 ms |
72692 KB |
Output is correct |
3 |
Correct |
985 ms |
70712 KB |
Output is correct |
4 |
Correct |
973 ms |
70760 KB |
Output is correct |
5 |
Correct |
824 ms |
64440 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
64 ms |
38148 KB |
Output is correct |
2 |
Correct |
58 ms |
39252 KB |
Output is correct |
3 |
Correct |
51 ms |
38736 KB |
Output is correct |
4 |
Correct |
51 ms |
38996 KB |
Output is correct |
5 |
Correct |
52 ms |
38992 KB |
Output is correct |
6 |
Correct |
41 ms |
35672 KB |
Output is correct |
7 |
Correct |
40 ms |
35664 KB |
Output is correct |
8 |
Correct |
51 ms |
38604 KB |
Output is correct |
9 |
Correct |
31 ms |
37324 KB |
Output is correct |
10 |
Correct |
51 ms |
38608 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
33112 KB |
Output is correct |
2 |
Correct |
6 ms |
33116 KB |
Output is correct |
3 |
Correct |
7 ms |
33116 KB |
Output is correct |
4 |
Correct |
7 ms |
33112 KB |
Output is correct |
5 |
Correct |
6 ms |
33116 KB |
Output is correct |
6 |
Correct |
7 ms |
33204 KB |
Output is correct |
7 |
Correct |
7 ms |
33116 KB |
Output is correct |
8 |
Correct |
9 ms |
33116 KB |
Output is correct |
9 |
Correct |
8 ms |
33116 KB |
Output is correct |
10 |
Correct |
7 ms |
33116 KB |
Output is correct |
11 |
Correct |
9 ms |
33424 KB |
Output is correct |
12 |
Correct |
8 ms |
33372 KB |
Output is correct |
13 |
Correct |
9 ms |
33524 KB |
Output is correct |
14 |
Correct |
9 ms |
33372 KB |
Output is correct |
15 |
Correct |
9 ms |
33372 KB |
Output is correct |
16 |
Correct |
9 ms |
33528 KB |
Output is correct |
17 |
Correct |
9 ms |
33368 KB |
Output is correct |
18 |
Correct |
10 ms |
33372 KB |
Output is correct |
19 |
Correct |
150 ms |
51792 KB |
Output is correct |
20 |
Correct |
165 ms |
51572 KB |
Output is correct |
21 |
Correct |
118 ms |
49644 KB |
Output is correct |
22 |
Correct |
118 ms |
49744 KB |
Output is correct |
23 |
Correct |
150 ms |
49820 KB |
Output is correct |
24 |
Correct |
96 ms |
47440 KB |
Output is correct |
25 |
Correct |
101 ms |
47388 KB |
Output is correct |
26 |
Correct |
108 ms |
48208 KB |
Output is correct |
27 |
Correct |
109 ms |
48208 KB |
Output is correct |
28 |
Correct |
109 ms |
48624 KB |
Output is correct |
29 |
Correct |
117 ms |
49472 KB |
Output is correct |
30 |
Correct |
121 ms |
49640 KB |
Output is correct |
31 |
Correct |
114 ms |
49488 KB |
Output is correct |
32 |
Correct |
121 ms |
49492 KB |
Output is correct |
33 |
Correct |
135 ms |
49632 KB |
Output is correct |
34 |
Correct |
88 ms |
47076 KB |
Output is correct |
35 |
Correct |
97 ms |
47108 KB |
Output is correct |
36 |
Correct |
87 ms |
46932 KB |
Output is correct |
37 |
Correct |
90 ms |
46984 KB |
Output is correct |
38 |
Correct |
88 ms |
47092 KB |
Output is correct |
39 |
Correct |
110 ms |
48392 KB |
Output is correct |
40 |
Correct |
89 ms |
46768 KB |
Output is correct |
41 |
Correct |
122 ms |
47560 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
6 ms |
33112 KB |
Output is correct |
2 |
Correct |
6 ms |
33116 KB |
Output is correct |
3 |
Correct |
7 ms |
33116 KB |
Output is correct |
4 |
Correct |
7 ms |
33112 KB |
Output is correct |
5 |
Correct |
6 ms |
33116 KB |
Output is correct |
6 |
Correct |
7 ms |
33204 KB |
Output is correct |
7 |
Correct |
7 ms |
33116 KB |
Output is correct |
8 |
Correct |
9 ms |
33116 KB |
Output is correct |
9 |
Correct |
8 ms |
33116 KB |
Output is correct |
10 |
Correct |
7 ms |
33116 KB |
Output is correct |
11 |
Correct |
9 ms |
33424 KB |
Output is correct |
12 |
Correct |
8 ms |
33372 KB |
Output is correct |
13 |
Correct |
9 ms |
33524 KB |
Output is correct |
14 |
Correct |
9 ms |
33372 KB |
Output is correct |
15 |
Correct |
9 ms |
33372 KB |
Output is correct |
16 |
Correct |
9 ms |
33528 KB |
Output is correct |
17 |
Correct |
9 ms |
33368 KB |
Output is correct |
18 |
Correct |
10 ms |
33372 KB |
Output is correct |
19 |
Correct |
956 ms |
72736 KB |
Output is correct |
20 |
Correct |
915 ms |
72692 KB |
Output is correct |
21 |
Correct |
985 ms |
70712 KB |
Output is correct |
22 |
Correct |
973 ms |
70760 KB |
Output is correct |
23 |
Correct |
824 ms |
64440 KB |
Output is correct |
24 |
Correct |
64 ms |
38148 KB |
Output is correct |
25 |
Correct |
58 ms |
39252 KB |
Output is correct |
26 |
Correct |
51 ms |
38736 KB |
Output is correct |
27 |
Correct |
51 ms |
38996 KB |
Output is correct |
28 |
Correct |
52 ms |
38992 KB |
Output is correct |
29 |
Correct |
41 ms |
35672 KB |
Output is correct |
30 |
Correct |
40 ms |
35664 KB |
Output is correct |
31 |
Correct |
51 ms |
38604 KB |
Output is correct |
32 |
Correct |
31 ms |
37324 KB |
Output is correct |
33 |
Correct |
51 ms |
38608 KB |
Output is correct |
34 |
Correct |
150 ms |
51792 KB |
Output is correct |
35 |
Correct |
165 ms |
51572 KB |
Output is correct |
36 |
Correct |
118 ms |
49644 KB |
Output is correct |
37 |
Correct |
118 ms |
49744 KB |
Output is correct |
38 |
Correct |
150 ms |
49820 KB |
Output is correct |
39 |
Correct |
96 ms |
47440 KB |
Output is correct |
40 |
Correct |
101 ms |
47388 KB |
Output is correct |
41 |
Correct |
108 ms |
48208 KB |
Output is correct |
42 |
Correct |
109 ms |
48208 KB |
Output is correct |
43 |
Correct |
109 ms |
48624 KB |
Output is correct |
44 |
Correct |
117 ms |
49472 KB |
Output is correct |
45 |
Correct |
121 ms |
49640 KB |
Output is correct |
46 |
Correct |
114 ms |
49488 KB |
Output is correct |
47 |
Correct |
121 ms |
49492 KB |
Output is correct |
48 |
Correct |
135 ms |
49632 KB |
Output is correct |
49 |
Correct |
88 ms |
47076 KB |
Output is correct |
50 |
Correct |
97 ms |
47108 KB |
Output is correct |
51 |
Correct |
87 ms |
46932 KB |
Output is correct |
52 |
Correct |
90 ms |
46984 KB |
Output is correct |
53 |
Correct |
88 ms |
47092 KB |
Output is correct |
54 |
Correct |
110 ms |
48392 KB |
Output is correct |
55 |
Correct |
89 ms |
46768 KB |
Output is correct |
56 |
Correct |
122 ms |
47560 KB |
Output is correct |
57 |
Correct |
924 ms |
104520 KB |
Output is correct |
58 |
Correct |
909 ms |
104532 KB |
Output is correct |
59 |
Correct |
791 ms |
100340 KB |
Output is correct |
60 |
Correct |
786 ms |
100320 KB |
Output is correct |
61 |
Correct |
812 ms |
100360 KB |
Output is correct |
62 |
Correct |
783 ms |
100324 KB |
Output is correct |
63 |
Correct |
443 ms |
84304 KB |
Output is correct |
64 |
Correct |
450 ms |
84408 KB |
Output is correct |
65 |
Correct |
642 ms |
91636 KB |
Output is correct |
66 |
Correct |
673 ms |
91620 KB |
Output is correct |
67 |
Correct |
640 ms |
91752 KB |
Output is correct |
68 |
Correct |
742 ms |
96144 KB |
Output is correct |
69 |
Correct |
748 ms |
96136 KB |
Output is correct |
70 |
Correct |
725 ms |
95912 KB |
Output is correct |
71 |
Correct |
758 ms |
95608 KB |
Output is correct |
72 |
Correct |
739 ms |
95572 KB |
Output is correct |
73 |
Correct |
416 ms |
82260 KB |
Output is correct |
74 |
Correct |
425 ms |
83284 KB |
Output is correct |
75 |
Correct |
429 ms |
82272 KB |
Output is correct |
76 |
Correct |
435 ms |
82528 KB |
Output is correct |
77 |
Correct |
421 ms |
82192 KB |
Output is correct |
78 |
Correct |
673 ms |
91016 KB |
Output is correct |
79 |
Correct |
505 ms |
79980 KB |
Output is correct |
80 |
Correct |
676 ms |
86004 KB |
Output is correct |