#include "bits/stdc++.h"
using namespace std;
const int N = 1e6+6;
int arr[N], d[N], ans[N];
vector<int> queries[N];
int l[N], r[N], k[N], s[N<<2];
void upd(int p, int v, int nd, int x, int y){
if (x == y){
s[nd] = max(s[nd], v);
return;
}
int mid = (x+y) >> 1;
if (p <= mid)
upd(p, v, nd<<1, x, mid);
else
upd(p, v, nd<<1|1, mid+1, y);
s[nd] = max(s[nd<<1], s[nd<<1|1]);
}
int tap(int l, int r, int nd, int x, int y){
if (l > y or x > r)
return 0;
if (l <= x and y <= r)
return s[nd];
int mid = (x+y) >> 1;
return max(tap(l, r, nd<<1, x, mid), tap(l, r, nd<<1|1, mid+1, y));
}
int main(){
// freopen("file.in", "r", stdin);
int n, q;
scanf("%d%d", &n, &q);
for (int i = 1; i <= n; i++)
scanf("%d", arr+i);
stack<int> st;
for (int i = 1; i <= n; i++){
while (!st.empty() and arr[st.top()] <= arr[i])
st.pop();
if (st.empty())
d[i] = -1;
else
d[i] = st.top();
st.push(i);
}
for (int i = 1; i <= q; i++){
scanf("%d%d%d", l+i, r+i, k+i);
queries[r[i]].push_back(i);
}
for (int j = 1; j <= n; j++){
int i = d[j];
if (~i)
upd(i, arr[i]+arr[j], 1, 1, n);
for (auto ind: queries[j])
ans[ind] = tap(l[ind], r[ind], 1, 1, n) <= k[ind];
}
for (int i = 1; i <= q; i++)
printf("%d\n", ans[i]);
return 0;
}
Compilation message
sortbooks.cpp: In function 'int main()':
sortbooks.cpp:31:7: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
31 | scanf("%d%d", &n, &q);
| ~~~~~^~~~~~~~~~~~~~~~
sortbooks.cpp:33:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
33 | scanf("%d", arr+i);
| ~~~~~^~~~~~~~~~~~~
sortbooks.cpp:45:8: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
45 | scanf("%d%d%d", l+i, r+i, k+i);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
23896 KB |
Output is correct |
2 |
Correct |
10 ms |
23900 KB |
Output is correct |
3 |
Correct |
9 ms |
23948 KB |
Output is correct |
4 |
Correct |
11 ms |
23900 KB |
Output is correct |
5 |
Correct |
10 ms |
23928 KB |
Output is correct |
6 |
Correct |
9 ms |
23900 KB |
Output is correct |
7 |
Correct |
11 ms |
23900 KB |
Output is correct |
8 |
Correct |
10 ms |
23900 KB |
Output is correct |
9 |
Correct |
10 ms |
23900 KB |
Output is correct |
10 |
Correct |
10 ms |
23896 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
23896 KB |
Output is correct |
2 |
Correct |
10 ms |
23900 KB |
Output is correct |
3 |
Correct |
9 ms |
23948 KB |
Output is correct |
4 |
Correct |
11 ms |
23900 KB |
Output is correct |
5 |
Correct |
10 ms |
23928 KB |
Output is correct |
6 |
Correct |
9 ms |
23900 KB |
Output is correct |
7 |
Correct |
11 ms |
23900 KB |
Output is correct |
8 |
Correct |
10 ms |
23900 KB |
Output is correct |
9 |
Correct |
10 ms |
23900 KB |
Output is correct |
10 |
Correct |
10 ms |
23896 KB |
Output is correct |
11 |
Correct |
11 ms |
24152 KB |
Output is correct |
12 |
Correct |
12 ms |
24156 KB |
Output is correct |
13 |
Correct |
11 ms |
24232 KB |
Output is correct |
14 |
Correct |
14 ms |
24156 KB |
Output is correct |
15 |
Correct |
13 ms |
24152 KB |
Output is correct |
16 |
Correct |
13 ms |
24152 KB |
Output is correct |
17 |
Correct |
12 ms |
24152 KB |
Output is correct |
18 |
Correct |
12 ms |
24156 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1075 ms |
106836 KB |
Output is correct |
2 |
Correct |
964 ms |
108208 KB |
Output is correct |
3 |
Correct |
963 ms |
108116 KB |
Output is correct |
4 |
Correct |
951 ms |
108372 KB |
Output is correct |
5 |
Correct |
859 ms |
100128 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
82 ms |
30940 KB |
Output is correct |
2 |
Correct |
72 ms |
30100 KB |
Output is correct |
3 |
Correct |
73 ms |
29776 KB |
Output is correct |
4 |
Correct |
73 ms |
29796 KB |
Output is correct |
5 |
Correct |
80 ms |
30036 KB |
Output is correct |
6 |
Correct |
55 ms |
28764 KB |
Output is correct |
7 |
Correct |
58 ms |
28924 KB |
Output is correct |
8 |
Correct |
64 ms |
29644 KB |
Output is correct |
9 |
Correct |
41 ms |
27340 KB |
Output is correct |
10 |
Correct |
60 ms |
29644 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
23896 KB |
Output is correct |
2 |
Correct |
10 ms |
23900 KB |
Output is correct |
3 |
Correct |
9 ms |
23948 KB |
Output is correct |
4 |
Correct |
11 ms |
23900 KB |
Output is correct |
5 |
Correct |
10 ms |
23928 KB |
Output is correct |
6 |
Correct |
9 ms |
23900 KB |
Output is correct |
7 |
Correct |
11 ms |
23900 KB |
Output is correct |
8 |
Correct |
10 ms |
23900 KB |
Output is correct |
9 |
Correct |
10 ms |
23900 KB |
Output is correct |
10 |
Correct |
10 ms |
23896 KB |
Output is correct |
11 |
Correct |
11 ms |
24152 KB |
Output is correct |
12 |
Correct |
12 ms |
24156 KB |
Output is correct |
13 |
Correct |
11 ms |
24232 KB |
Output is correct |
14 |
Correct |
14 ms |
24156 KB |
Output is correct |
15 |
Correct |
13 ms |
24152 KB |
Output is correct |
16 |
Correct |
13 ms |
24152 KB |
Output is correct |
17 |
Correct |
12 ms |
24152 KB |
Output is correct |
18 |
Correct |
12 ms |
24156 KB |
Output is correct |
19 |
Correct |
167 ms |
40784 KB |
Output is correct |
20 |
Correct |
170 ms |
40784 KB |
Output is correct |
21 |
Correct |
144 ms |
38992 KB |
Output is correct |
22 |
Correct |
148 ms |
38992 KB |
Output is correct |
23 |
Correct |
149 ms |
39032 KB |
Output is correct |
24 |
Correct |
130 ms |
36636 KB |
Output is correct |
25 |
Correct |
122 ms |
36688 KB |
Output is correct |
26 |
Correct |
135 ms |
37460 KB |
Output is correct |
27 |
Correct |
140 ms |
37456 KB |
Output is correct |
28 |
Correct |
136 ms |
37716 KB |
Output is correct |
29 |
Correct |
163 ms |
38740 KB |
Output is correct |
30 |
Correct |
149 ms |
38712 KB |
Output is correct |
31 |
Correct |
143 ms |
38652 KB |
Output is correct |
32 |
Correct |
144 ms |
38740 KB |
Output is correct |
33 |
Correct |
149 ms |
38692 KB |
Output is correct |
34 |
Correct |
119 ms |
36436 KB |
Output is correct |
35 |
Correct |
137 ms |
36432 KB |
Output is correct |
36 |
Correct |
125 ms |
36180 KB |
Output is correct |
37 |
Correct |
126 ms |
36180 KB |
Output is correct |
38 |
Correct |
116 ms |
36432 KB |
Output is correct |
39 |
Correct |
132 ms |
37644 KB |
Output is correct |
40 |
Correct |
104 ms |
35528 KB |
Output is correct |
41 |
Correct |
132 ms |
36808 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
10 ms |
23896 KB |
Output is correct |
2 |
Correct |
10 ms |
23900 KB |
Output is correct |
3 |
Correct |
9 ms |
23948 KB |
Output is correct |
4 |
Correct |
11 ms |
23900 KB |
Output is correct |
5 |
Correct |
10 ms |
23928 KB |
Output is correct |
6 |
Correct |
9 ms |
23900 KB |
Output is correct |
7 |
Correct |
11 ms |
23900 KB |
Output is correct |
8 |
Correct |
10 ms |
23900 KB |
Output is correct |
9 |
Correct |
10 ms |
23900 KB |
Output is correct |
10 |
Correct |
10 ms |
23896 KB |
Output is correct |
11 |
Correct |
11 ms |
24152 KB |
Output is correct |
12 |
Correct |
12 ms |
24156 KB |
Output is correct |
13 |
Correct |
11 ms |
24232 KB |
Output is correct |
14 |
Correct |
14 ms |
24156 KB |
Output is correct |
15 |
Correct |
13 ms |
24152 KB |
Output is correct |
16 |
Correct |
13 ms |
24152 KB |
Output is correct |
17 |
Correct |
12 ms |
24152 KB |
Output is correct |
18 |
Correct |
12 ms |
24156 KB |
Output is correct |
19 |
Correct |
1075 ms |
106836 KB |
Output is correct |
20 |
Correct |
964 ms |
108208 KB |
Output is correct |
21 |
Correct |
963 ms |
108116 KB |
Output is correct |
22 |
Correct |
951 ms |
108372 KB |
Output is correct |
23 |
Correct |
859 ms |
100128 KB |
Output is correct |
24 |
Correct |
82 ms |
30940 KB |
Output is correct |
25 |
Correct |
72 ms |
30100 KB |
Output is correct |
26 |
Correct |
73 ms |
29776 KB |
Output is correct |
27 |
Correct |
73 ms |
29796 KB |
Output is correct |
28 |
Correct |
80 ms |
30036 KB |
Output is correct |
29 |
Correct |
55 ms |
28764 KB |
Output is correct |
30 |
Correct |
58 ms |
28924 KB |
Output is correct |
31 |
Correct |
64 ms |
29644 KB |
Output is correct |
32 |
Correct |
41 ms |
27340 KB |
Output is correct |
33 |
Correct |
60 ms |
29644 KB |
Output is correct |
34 |
Correct |
167 ms |
40784 KB |
Output is correct |
35 |
Correct |
170 ms |
40784 KB |
Output is correct |
36 |
Correct |
144 ms |
38992 KB |
Output is correct |
37 |
Correct |
148 ms |
38992 KB |
Output is correct |
38 |
Correct |
149 ms |
39032 KB |
Output is correct |
39 |
Correct |
130 ms |
36636 KB |
Output is correct |
40 |
Correct |
122 ms |
36688 KB |
Output is correct |
41 |
Correct |
135 ms |
37460 KB |
Output is correct |
42 |
Correct |
140 ms |
37456 KB |
Output is correct |
43 |
Correct |
136 ms |
37716 KB |
Output is correct |
44 |
Correct |
163 ms |
38740 KB |
Output is correct |
45 |
Correct |
149 ms |
38712 KB |
Output is correct |
46 |
Correct |
143 ms |
38652 KB |
Output is correct |
47 |
Correct |
144 ms |
38740 KB |
Output is correct |
48 |
Correct |
149 ms |
38692 KB |
Output is correct |
49 |
Correct |
119 ms |
36436 KB |
Output is correct |
50 |
Correct |
137 ms |
36432 KB |
Output is correct |
51 |
Correct |
125 ms |
36180 KB |
Output is correct |
52 |
Correct |
126 ms |
36180 KB |
Output is correct |
53 |
Correct |
116 ms |
36432 KB |
Output is correct |
54 |
Correct |
132 ms |
37644 KB |
Output is correct |
55 |
Correct |
104 ms |
35528 KB |
Output is correct |
56 |
Correct |
132 ms |
36808 KB |
Output is correct |
57 |
Correct |
980 ms |
107152 KB |
Output is correct |
58 |
Correct |
929 ms |
107092 KB |
Output is correct |
59 |
Correct |
833 ms |
102932 KB |
Output is correct |
60 |
Correct |
853 ms |
102996 KB |
Output is correct |
61 |
Correct |
910 ms |
103104 KB |
Output is correct |
62 |
Correct |
923 ms |
103152 KB |
Output is correct |
63 |
Correct |
624 ms |
87124 KB |
Output is correct |
64 |
Correct |
607 ms |
87092 KB |
Output is correct |
65 |
Correct |
772 ms |
94360 KB |
Output is correct |
66 |
Correct |
772 ms |
94396 KB |
Output is correct |
67 |
Correct |
782 ms |
94548 KB |
Output is correct |
68 |
Correct |
876 ms |
98900 KB |
Output is correct |
69 |
Correct |
883 ms |
98940 KB |
Output is correct |
70 |
Correct |
775 ms |
98384 KB |
Output is correct |
71 |
Correct |
789 ms |
98388 KB |
Output is correct |
72 |
Correct |
817 ms |
98320 KB |
Output is correct |
73 |
Correct |
619 ms |
85080 KB |
Output is correct |
74 |
Correct |
611 ms |
86100 KB |
Output is correct |
75 |
Correct |
612 ms |
85200 KB |
Output is correct |
76 |
Correct |
578 ms |
84816 KB |
Output is correct |
77 |
Correct |
604 ms |
85172 KB |
Output is correct |
78 |
Correct |
743 ms |
93888 KB |
Output is correct |
79 |
Correct |
547 ms |
80320 KB |
Output is correct |
80 |
Correct |
741 ms |
88920 KB |
Output is correct |