#include <bits/stdc++.h>
using namespace std;
const int Z = 2e5, INF = 1e9+1;
int sL, sR, sV;
struct SegmentTree{
int l, r, x = INF, y = -INF, res = -INF;
SegmentTree *L, *R;
void pull() {
x = min(L->x, R->x);
res = max({L->res, R->res, y - x});
}
void apply(int val) {
y = max(y, val);
res = max(res, y - x);
}
void push() {
L->apply(y), R->apply(y);
y = -INF;
}
SegmentTree(int lx, int rx) : l(lx), r(rx) {
if(r - l < 2) return;
int m = (l + r) / 2;
L = new SegmentTree(l, m);
R = new SegmentTree(m, r);
}
void rangeMaximise() {
if(sL<=l && r<=sR) return apply(sV);
if(sR<=l || r<=sL) return;
push();
L->rangeMaximise(), R->rangeMaximise();
pull();
}
void pointUpdate() {
if(r - l < 2)
y = -INF, x = sV, res = max(res, y - x);
else
push(), (sL < L->r ? L : R)->pointUpdate(), pull();
}
int rangeMaxDiff() {
if(sL<=l && r<=sR) return res;
if(sR<=l || r<=sL) return -INF;
push();
return max(L->rangeMaxDiff(), R->rangeMaxDiff());
}
};
int N, Q, H[Z], A[Z], B[Z], qL[Z], ans[Z];
vector<int> add[Z+1], qAt[Z];
signed main() {
ios::sync_with_stdio(0); cin.tie(0);
cin >> N;
for(int i = 0; i < N; ++i) {
cin >> H[i] >> A[i] >> B[i];
if(i + A[i] < N) {
add[i + A[i]].push_back(i);
add[min(N, i+B[i]+1)].push_back(-i-1);
}
}
cin >> Q;
for(int i = 0, qR; i < Q; ++i) {
cin >> qL[i] >> qR;
--qL[i];
qAt[--qR].push_back(i);
ans[i] = -1;
}
for(int _ : {1, 0}) {
SegmentTree st(0, N);
for(int i = 0; i < N; ++i) {
for(int &j : add[i])
sL = max(j, -j-1), sV = j < 0 ? INF : H[j], st.pointUpdate();
if(i - A[i] >= 0)
sL = max(0, i-B[i]), sR = i-A[i]+1, sV = H[i], st.rangeMaximise();
for(int &j : qAt[i])
sL = qL[j], sR = N, ans[j] = max(ans[j], st.rangeMaxDiff());
}
if(_) for(int &i : H) i = -i;
}
for(int i = 0; i < Q; ++i)
cout << ans[i] << '\n';
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
10444 KB |
Output is correct |
2 |
Correct |
6 ms |
10524 KB |
Output is correct |
3 |
Correct |
6 ms |
10572 KB |
Output is correct |
4 |
Correct |
6 ms |
10572 KB |
Output is correct |
5 |
Correct |
6 ms |
10572 KB |
Output is correct |
6 |
Correct |
6 ms |
10572 KB |
Output is correct |
7 |
Correct |
6 ms |
10572 KB |
Output is correct |
8 |
Correct |
6 ms |
10572 KB |
Output is correct |
9 |
Correct |
6 ms |
10444 KB |
Output is correct |
10 |
Correct |
6 ms |
10556 KB |
Output is correct |
11 |
Correct |
6 ms |
10444 KB |
Output is correct |
12 |
Correct |
6 ms |
10572 KB |
Output is correct |
13 |
Correct |
5 ms |
10444 KB |
Output is correct |
14 |
Correct |
5 ms |
10444 KB |
Output is correct |
15 |
Correct |
6 ms |
10456 KB |
Output is correct |
16 |
Correct |
7 ms |
10572 KB |
Output is correct |
17 |
Correct |
6 ms |
10572 KB |
Output is correct |
18 |
Correct |
6 ms |
10444 KB |
Output is correct |
19 |
Correct |
6 ms |
10444 KB |
Output is correct |
20 |
Correct |
6 ms |
10572 KB |
Output is correct |
21 |
Correct |
7 ms |
10444 KB |
Output is correct |
22 |
Correct |
6 ms |
10572 KB |
Output is correct |
23 |
Correct |
6 ms |
10444 KB |
Output is correct |
24 |
Correct |
6 ms |
10444 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
10444 KB |
Output is correct |
2 |
Correct |
6 ms |
10524 KB |
Output is correct |
3 |
Correct |
6 ms |
10572 KB |
Output is correct |
4 |
Correct |
6 ms |
10572 KB |
Output is correct |
5 |
Correct |
6 ms |
10572 KB |
Output is correct |
6 |
Correct |
6 ms |
10572 KB |
Output is correct |
7 |
Correct |
6 ms |
10572 KB |
Output is correct |
8 |
Correct |
6 ms |
10572 KB |
Output is correct |
9 |
Correct |
6 ms |
10444 KB |
Output is correct |
10 |
Correct |
6 ms |
10556 KB |
Output is correct |
11 |
Correct |
6 ms |
10444 KB |
Output is correct |
12 |
Correct |
6 ms |
10572 KB |
Output is correct |
13 |
Correct |
5 ms |
10444 KB |
Output is correct |
14 |
Correct |
5 ms |
10444 KB |
Output is correct |
15 |
Correct |
6 ms |
10456 KB |
Output is correct |
16 |
Correct |
7 ms |
10572 KB |
Output is correct |
17 |
Correct |
6 ms |
10572 KB |
Output is correct |
18 |
Correct |
6 ms |
10444 KB |
Output is correct |
19 |
Correct |
6 ms |
10444 KB |
Output is correct |
20 |
Correct |
6 ms |
10572 KB |
Output is correct |
21 |
Correct |
7 ms |
10444 KB |
Output is correct |
22 |
Correct |
6 ms |
10572 KB |
Output is correct |
23 |
Correct |
6 ms |
10444 KB |
Output is correct |
24 |
Correct |
6 ms |
10444 KB |
Output is correct |
25 |
Correct |
65 ms |
13900 KB |
Output is correct |
26 |
Correct |
19 ms |
11212 KB |
Output is correct |
27 |
Correct |
122 ms |
15196 KB |
Output is correct |
28 |
Correct |
111 ms |
15300 KB |
Output is correct |
29 |
Correct |
66 ms |
13912 KB |
Output is correct |
30 |
Correct |
73 ms |
13828 KB |
Output is correct |
31 |
Correct |
77 ms |
14640 KB |
Output is correct |
32 |
Correct |
129 ms |
15428 KB |
Output is correct |
33 |
Correct |
90 ms |
15004 KB |
Output is correct |
34 |
Correct |
52 ms |
13020 KB |
Output is correct |
35 |
Correct |
98 ms |
15184 KB |
Output is correct |
36 |
Correct |
103 ms |
15376 KB |
Output is correct |
37 |
Correct |
76 ms |
12804 KB |
Output is correct |
38 |
Correct |
101 ms |
14308 KB |
Output is correct |
39 |
Correct |
24 ms |
11312 KB |
Output is correct |
40 |
Correct |
110 ms |
14404 KB |
Output is correct |
41 |
Correct |
73 ms |
13380 KB |
Output is correct |
42 |
Correct |
97 ms |
14392 KB |
Output is correct |
43 |
Correct |
41 ms |
12136 KB |
Output is correct |
44 |
Correct |
97 ms |
14404 KB |
Output is correct |
45 |
Correct |
22 ms |
11460 KB |
Output is correct |
46 |
Correct |
100 ms |
14384 KB |
Output is correct |
47 |
Correct |
31 ms |
11724 KB |
Output is correct |
48 |
Correct |
99 ms |
14392 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
341 ms |
48404 KB |
Output is correct |
2 |
Correct |
416 ms |
52768 KB |
Output is correct |
3 |
Correct |
255 ms |
40132 KB |
Output is correct |
4 |
Correct |
407 ms |
52716 KB |
Output is correct |
5 |
Correct |
141 ms |
30020 KB |
Output is correct |
6 |
Correct |
407 ms |
52644 KB |
Output is correct |
7 |
Correct |
343 ms |
47108 KB |
Output is correct |
8 |
Correct |
480 ms |
52664 KB |
Output is correct |
9 |
Correct |
47 ms |
17164 KB |
Output is correct |
10 |
Correct |
414 ms |
52660 KB |
Output is correct |
11 |
Correct |
236 ms |
36912 KB |
Output is correct |
12 |
Correct |
430 ms |
52712 KB |
Output is correct |
13 |
Correct |
245 ms |
50732 KB |
Output is correct |
14 |
Correct |
239 ms |
50816 KB |
Output is correct |
15 |
Correct |
234 ms |
50756 KB |
Output is correct |
16 |
Correct |
206 ms |
51116 KB |
Output is correct |
17 |
Correct |
276 ms |
50944 KB |
Output is correct |
18 |
Correct |
226 ms |
51224 KB |
Output is correct |
19 |
Correct |
241 ms |
50612 KB |
Output is correct |
20 |
Correct |
228 ms |
50708 KB |
Output is correct |
21 |
Correct |
229 ms |
50520 KB |
Output is correct |
22 |
Correct |
235 ms |
50828 KB |
Output is correct |
23 |
Correct |
238 ms |
50592 KB |
Output is correct |
24 |
Correct |
209 ms |
50660 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
7 ms |
10444 KB |
Output is correct |
2 |
Correct |
6 ms |
10524 KB |
Output is correct |
3 |
Correct |
6 ms |
10572 KB |
Output is correct |
4 |
Correct |
6 ms |
10572 KB |
Output is correct |
5 |
Correct |
6 ms |
10572 KB |
Output is correct |
6 |
Correct |
6 ms |
10572 KB |
Output is correct |
7 |
Correct |
6 ms |
10572 KB |
Output is correct |
8 |
Correct |
6 ms |
10572 KB |
Output is correct |
9 |
Correct |
6 ms |
10444 KB |
Output is correct |
10 |
Correct |
6 ms |
10556 KB |
Output is correct |
11 |
Correct |
6 ms |
10444 KB |
Output is correct |
12 |
Correct |
6 ms |
10572 KB |
Output is correct |
13 |
Correct |
5 ms |
10444 KB |
Output is correct |
14 |
Correct |
5 ms |
10444 KB |
Output is correct |
15 |
Correct |
6 ms |
10456 KB |
Output is correct |
16 |
Correct |
7 ms |
10572 KB |
Output is correct |
17 |
Correct |
6 ms |
10572 KB |
Output is correct |
18 |
Correct |
6 ms |
10444 KB |
Output is correct |
19 |
Correct |
6 ms |
10444 KB |
Output is correct |
20 |
Correct |
6 ms |
10572 KB |
Output is correct |
21 |
Correct |
7 ms |
10444 KB |
Output is correct |
22 |
Correct |
6 ms |
10572 KB |
Output is correct |
23 |
Correct |
6 ms |
10444 KB |
Output is correct |
24 |
Correct |
6 ms |
10444 KB |
Output is correct |
25 |
Correct |
65 ms |
13900 KB |
Output is correct |
26 |
Correct |
19 ms |
11212 KB |
Output is correct |
27 |
Correct |
122 ms |
15196 KB |
Output is correct |
28 |
Correct |
111 ms |
15300 KB |
Output is correct |
29 |
Correct |
66 ms |
13912 KB |
Output is correct |
30 |
Correct |
73 ms |
13828 KB |
Output is correct |
31 |
Correct |
77 ms |
14640 KB |
Output is correct |
32 |
Correct |
129 ms |
15428 KB |
Output is correct |
33 |
Correct |
90 ms |
15004 KB |
Output is correct |
34 |
Correct |
52 ms |
13020 KB |
Output is correct |
35 |
Correct |
98 ms |
15184 KB |
Output is correct |
36 |
Correct |
103 ms |
15376 KB |
Output is correct |
37 |
Correct |
76 ms |
12804 KB |
Output is correct |
38 |
Correct |
101 ms |
14308 KB |
Output is correct |
39 |
Correct |
24 ms |
11312 KB |
Output is correct |
40 |
Correct |
110 ms |
14404 KB |
Output is correct |
41 |
Correct |
73 ms |
13380 KB |
Output is correct |
42 |
Correct |
97 ms |
14392 KB |
Output is correct |
43 |
Correct |
41 ms |
12136 KB |
Output is correct |
44 |
Correct |
97 ms |
14404 KB |
Output is correct |
45 |
Correct |
22 ms |
11460 KB |
Output is correct |
46 |
Correct |
100 ms |
14384 KB |
Output is correct |
47 |
Correct |
31 ms |
11724 KB |
Output is correct |
48 |
Correct |
99 ms |
14392 KB |
Output is correct |
49 |
Correct |
341 ms |
48404 KB |
Output is correct |
50 |
Correct |
416 ms |
52768 KB |
Output is correct |
51 |
Correct |
255 ms |
40132 KB |
Output is correct |
52 |
Correct |
407 ms |
52716 KB |
Output is correct |
53 |
Correct |
141 ms |
30020 KB |
Output is correct |
54 |
Correct |
407 ms |
52644 KB |
Output is correct |
55 |
Correct |
343 ms |
47108 KB |
Output is correct |
56 |
Correct |
480 ms |
52664 KB |
Output is correct |
57 |
Correct |
47 ms |
17164 KB |
Output is correct |
58 |
Correct |
414 ms |
52660 KB |
Output is correct |
59 |
Correct |
236 ms |
36912 KB |
Output is correct |
60 |
Correct |
430 ms |
52712 KB |
Output is correct |
61 |
Correct |
245 ms |
50732 KB |
Output is correct |
62 |
Correct |
239 ms |
50816 KB |
Output is correct |
63 |
Correct |
234 ms |
50756 KB |
Output is correct |
64 |
Correct |
206 ms |
51116 KB |
Output is correct |
65 |
Correct |
276 ms |
50944 KB |
Output is correct |
66 |
Correct |
226 ms |
51224 KB |
Output is correct |
67 |
Correct |
241 ms |
50612 KB |
Output is correct |
68 |
Correct |
228 ms |
50708 KB |
Output is correct |
69 |
Correct |
229 ms |
50520 KB |
Output is correct |
70 |
Correct |
235 ms |
50828 KB |
Output is correct |
71 |
Correct |
238 ms |
50592 KB |
Output is correct |
72 |
Correct |
209 ms |
50660 KB |
Output is correct |
73 |
Correct |
633 ms |
53752 KB |
Output is correct |
74 |
Correct |
424 ms |
53388 KB |
Output is correct |
75 |
Correct |
560 ms |
46444 KB |
Output is correct |
76 |
Correct |
775 ms |
59540 KB |
Output is correct |
77 |
Correct |
339 ms |
34500 KB |
Output is correct |
78 |
Correct |
620 ms |
57492 KB |
Output is correct |
79 |
Correct |
632 ms |
53600 KB |
Output is correct |
80 |
Correct |
722 ms |
59584 KB |
Output is correct |
81 |
Correct |
191 ms |
22060 KB |
Output is correct |
82 |
Correct |
608 ms |
56460 KB |
Output is correct |
83 |
Correct |
480 ms |
43084 KB |
Output is correct |
84 |
Correct |
748 ms |
59464 KB |
Output is correct |
85 |
Correct |
430 ms |
54348 KB |
Output is correct |
86 |
Correct |
529 ms |
56368 KB |
Output is correct |
87 |
Correct |
306 ms |
51804 KB |
Output is correct |
88 |
Correct |
503 ms |
56764 KB |
Output is correct |
89 |
Correct |
482 ms |
55268 KB |
Output is correct |
90 |
Correct |
612 ms |
56872 KB |
Output is correct |
91 |
Correct |
374 ms |
52928 KB |
Output is correct |
92 |
Correct |
539 ms |
56264 KB |
Output is correct |
93 |
Correct |
285 ms |
51876 KB |
Output is correct |
94 |
Correct |
519 ms |
56464 KB |
Output is correct |
95 |
Correct |
318 ms |
52560 KB |
Output is correct |
96 |
Correct |
555 ms |
56312 KB |
Output is correct |