#include <bits/stdc++.h>
using namespace std;
#define int long long
#define remax(X, Y) X = max(X, Y)
#define remin(X, Y) X = min(X, Y)
const int Z = 2e5, INF = 1e12;
int sL, sR, sV;
struct SegmentTree{
int l, r, sMin = INF, sMax = -INF, res = -INF;
SegmentTree *L, *R;
void pull() {
sMin = min(L->sMin, R->sMin);
res = max({L->res, R->res, sMax - sMin});
}
void apply(int val) {
remax(sMax, val);
res = max(res, sMax - sMin);
if(r - l > 1) pull();
}
void push() {
L->apply(sMax);
R->apply(sMax);
sMax = -INF;
}
SegmentTree(int lx, int rx) : l(lx), r(rx) {
if(r - l > 1) {
int m = (l + r) / 2;
L = new SegmentTree(l, m);
R = new SegmentTree(m, r);
}
}
void rangeMaximise(int lx, int rx, int v) {
sL = lx, sR = rx, sV = v;
rangeMaximise();
}
void rangeMaximise() {
if(sL<=l && r<=sR) return apply(sV);
if(sR<=l || r<=sL) return;
push();
L->rangeMaximise(), R->rangeMaximise();
pull();
}
void pointUpdate(int i, int v) {
sL = i, sV = v;
pointUpdate();
}
void pointUpdate() {
if(r - l < 2) {
sMax = -INF;
sMin = sV, res = max(res, sMax - sMin);
return;
}
push();
(sL < L->r ? L : R)->pointUpdate();
pull();
}
int rangeMaxDiff(int lx, int rx) {
sL = lx, sR = rx;
return query();
}
int query() {
if(sL<=l && r<=sR) return res;
if(sR<=l || r<=sL) return -INF;
push();
return max(L->query(), R->query());
}
};
int N, Q, H[Z], A[Z], B[Z], qL[Z], qR[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; i < Q; ++i) {
cin >> qL[i] >> qR[i];
--qL[i], --qR[i];
qAt[qR[i]].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]) {
if(j < 0) st.pointUpdate(-j-1, INF);
else st.pointUpdate(j, H[j]);
}
if(i - A[i] >= 0)
st.rangeMaximise(max(0LL, i-B[i]), i-A[i]+1, H[i]);
for(int &j : qAt[i])
ans[j] = max(ans[j], st.rangeMaxDiff(qL[j], i+1));
}
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 |
5 ms |
11340 KB |
Output is correct |
2 |
Correct |
6 ms |
11296 KB |
Output is correct |
3 |
Correct |
6 ms |
11368 KB |
Output is correct |
4 |
Correct |
6 ms |
11384 KB |
Output is correct |
5 |
Correct |
6 ms |
11368 KB |
Output is correct |
6 |
Correct |
5 ms |
11332 KB |
Output is correct |
7 |
Correct |
6 ms |
11340 KB |
Output is correct |
8 |
Correct |
6 ms |
11304 KB |
Output is correct |
9 |
Correct |
6 ms |
11248 KB |
Output is correct |
10 |
Correct |
6 ms |
11384 KB |
Output is correct |
11 |
Correct |
5 ms |
11244 KB |
Output is correct |
12 |
Correct |
6 ms |
11388 KB |
Output is correct |
13 |
Correct |
6 ms |
11372 KB |
Output is correct |
14 |
Correct |
6 ms |
11340 KB |
Output is correct |
15 |
Correct |
7 ms |
11360 KB |
Output is correct |
16 |
Correct |
6 ms |
11340 KB |
Output is correct |
17 |
Correct |
6 ms |
11372 KB |
Output is correct |
18 |
Correct |
6 ms |
11340 KB |
Output is correct |
19 |
Correct |
5 ms |
11340 KB |
Output is correct |
20 |
Correct |
8 ms |
11364 KB |
Output is correct |
21 |
Correct |
7 ms |
11340 KB |
Output is correct |
22 |
Correct |
6 ms |
11320 KB |
Output is correct |
23 |
Correct |
5 ms |
11372 KB |
Output is correct |
24 |
Correct |
7 ms |
11340 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
11340 KB |
Output is correct |
2 |
Correct |
6 ms |
11296 KB |
Output is correct |
3 |
Correct |
6 ms |
11368 KB |
Output is correct |
4 |
Correct |
6 ms |
11384 KB |
Output is correct |
5 |
Correct |
6 ms |
11368 KB |
Output is correct |
6 |
Correct |
5 ms |
11332 KB |
Output is correct |
7 |
Correct |
6 ms |
11340 KB |
Output is correct |
8 |
Correct |
6 ms |
11304 KB |
Output is correct |
9 |
Correct |
6 ms |
11248 KB |
Output is correct |
10 |
Correct |
6 ms |
11384 KB |
Output is correct |
11 |
Correct |
5 ms |
11244 KB |
Output is correct |
12 |
Correct |
6 ms |
11388 KB |
Output is correct |
13 |
Correct |
6 ms |
11372 KB |
Output is correct |
14 |
Correct |
6 ms |
11340 KB |
Output is correct |
15 |
Correct |
7 ms |
11360 KB |
Output is correct |
16 |
Correct |
6 ms |
11340 KB |
Output is correct |
17 |
Correct |
6 ms |
11372 KB |
Output is correct |
18 |
Correct |
6 ms |
11340 KB |
Output is correct |
19 |
Correct |
5 ms |
11340 KB |
Output is correct |
20 |
Correct |
8 ms |
11364 KB |
Output is correct |
21 |
Correct |
7 ms |
11340 KB |
Output is correct |
22 |
Correct |
6 ms |
11320 KB |
Output is correct |
23 |
Correct |
5 ms |
11372 KB |
Output is correct |
24 |
Correct |
7 ms |
11340 KB |
Output is correct |
25 |
Correct |
138 ms |
19056 KB |
Output is correct |
26 |
Correct |
20 ms |
12584 KB |
Output is correct |
27 |
Correct |
178 ms |
22268 KB |
Output is correct |
28 |
Correct |
171 ms |
22424 KB |
Output is correct |
29 |
Correct |
123 ms |
19028 KB |
Output is correct |
30 |
Correct |
107 ms |
18840 KB |
Output is correct |
31 |
Correct |
119 ms |
21100 KB |
Output is correct |
32 |
Correct |
162 ms |
22372 KB |
Output is correct |
33 |
Correct |
153 ms |
21628 KB |
Output is correct |
34 |
Correct |
79 ms |
16880 KB |
Output is correct |
35 |
Correct |
180 ms |
22268 KB |
Output is correct |
36 |
Correct |
181 ms |
22388 KB |
Output is correct |
37 |
Correct |
100 ms |
17360 KB |
Output is correct |
38 |
Correct |
159 ms |
21448 KB |
Output is correct |
39 |
Correct |
38 ms |
13100 KB |
Output is correct |
40 |
Correct |
175 ms |
21472 KB |
Output is correct |
41 |
Correct |
120 ms |
18756 KB |
Output is correct |
42 |
Correct |
189 ms |
21364 KB |
Output is correct |
43 |
Correct |
56 ms |
14912 KB |
Output is correct |
44 |
Correct |
194 ms |
21464 KB |
Output is correct |
45 |
Correct |
33 ms |
13392 KB |
Output is correct |
46 |
Correct |
158 ms |
21340 KB |
Output is correct |
47 |
Correct |
45 ms |
14296 KB |
Output is correct |
48 |
Correct |
166 ms |
21572 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
459 ms |
62344 KB |
Output is correct |
2 |
Correct |
462 ms |
72508 KB |
Output is correct |
3 |
Correct |
320 ms |
54212 KB |
Output is correct |
4 |
Correct |
541 ms |
72656 KB |
Output is correct |
5 |
Correct |
165 ms |
39416 KB |
Output is correct |
6 |
Correct |
479 ms |
72524 KB |
Output is correct |
7 |
Correct |
441 ms |
64420 KB |
Output is correct |
8 |
Correct |
477 ms |
72516 KB |
Output is correct |
9 |
Correct |
66 ms |
21092 KB |
Output is correct |
10 |
Correct |
505 ms |
72524 KB |
Output is correct |
11 |
Correct |
261 ms |
49600 KB |
Output is correct |
12 |
Correct |
536 ms |
72556 KB |
Output is correct |
13 |
Correct |
310 ms |
70916 KB |
Output is correct |
14 |
Correct |
274 ms |
71024 KB |
Output is correct |
15 |
Correct |
281 ms |
71020 KB |
Output is correct |
16 |
Correct |
248 ms |
71508 KB |
Output is correct |
17 |
Correct |
328 ms |
71164 KB |
Output is correct |
18 |
Correct |
329 ms |
71516 KB |
Output is correct |
19 |
Correct |
316 ms |
70780 KB |
Output is correct |
20 |
Correct |
317 ms |
70920 KB |
Output is correct |
21 |
Correct |
282 ms |
70756 KB |
Output is correct |
22 |
Correct |
368 ms |
71004 KB |
Output is correct |
23 |
Correct |
310 ms |
70844 KB |
Output is correct |
24 |
Correct |
306 ms |
70968 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
5 ms |
11340 KB |
Output is correct |
2 |
Correct |
6 ms |
11296 KB |
Output is correct |
3 |
Correct |
6 ms |
11368 KB |
Output is correct |
4 |
Correct |
6 ms |
11384 KB |
Output is correct |
5 |
Correct |
6 ms |
11368 KB |
Output is correct |
6 |
Correct |
5 ms |
11332 KB |
Output is correct |
7 |
Correct |
6 ms |
11340 KB |
Output is correct |
8 |
Correct |
6 ms |
11304 KB |
Output is correct |
9 |
Correct |
6 ms |
11248 KB |
Output is correct |
10 |
Correct |
6 ms |
11384 KB |
Output is correct |
11 |
Correct |
5 ms |
11244 KB |
Output is correct |
12 |
Correct |
6 ms |
11388 KB |
Output is correct |
13 |
Correct |
6 ms |
11372 KB |
Output is correct |
14 |
Correct |
6 ms |
11340 KB |
Output is correct |
15 |
Correct |
7 ms |
11360 KB |
Output is correct |
16 |
Correct |
6 ms |
11340 KB |
Output is correct |
17 |
Correct |
6 ms |
11372 KB |
Output is correct |
18 |
Correct |
6 ms |
11340 KB |
Output is correct |
19 |
Correct |
5 ms |
11340 KB |
Output is correct |
20 |
Correct |
8 ms |
11364 KB |
Output is correct |
21 |
Correct |
7 ms |
11340 KB |
Output is correct |
22 |
Correct |
6 ms |
11320 KB |
Output is correct |
23 |
Correct |
5 ms |
11372 KB |
Output is correct |
24 |
Correct |
7 ms |
11340 KB |
Output is correct |
25 |
Correct |
138 ms |
19056 KB |
Output is correct |
26 |
Correct |
20 ms |
12584 KB |
Output is correct |
27 |
Correct |
178 ms |
22268 KB |
Output is correct |
28 |
Correct |
171 ms |
22424 KB |
Output is correct |
29 |
Correct |
123 ms |
19028 KB |
Output is correct |
30 |
Correct |
107 ms |
18840 KB |
Output is correct |
31 |
Correct |
119 ms |
21100 KB |
Output is correct |
32 |
Correct |
162 ms |
22372 KB |
Output is correct |
33 |
Correct |
153 ms |
21628 KB |
Output is correct |
34 |
Correct |
79 ms |
16880 KB |
Output is correct |
35 |
Correct |
180 ms |
22268 KB |
Output is correct |
36 |
Correct |
181 ms |
22388 KB |
Output is correct |
37 |
Correct |
100 ms |
17360 KB |
Output is correct |
38 |
Correct |
159 ms |
21448 KB |
Output is correct |
39 |
Correct |
38 ms |
13100 KB |
Output is correct |
40 |
Correct |
175 ms |
21472 KB |
Output is correct |
41 |
Correct |
120 ms |
18756 KB |
Output is correct |
42 |
Correct |
189 ms |
21364 KB |
Output is correct |
43 |
Correct |
56 ms |
14912 KB |
Output is correct |
44 |
Correct |
194 ms |
21464 KB |
Output is correct |
45 |
Correct |
33 ms |
13392 KB |
Output is correct |
46 |
Correct |
158 ms |
21340 KB |
Output is correct |
47 |
Correct |
45 ms |
14296 KB |
Output is correct |
48 |
Correct |
166 ms |
21572 KB |
Output is correct |
49 |
Correct |
459 ms |
62344 KB |
Output is correct |
50 |
Correct |
462 ms |
72508 KB |
Output is correct |
51 |
Correct |
320 ms |
54212 KB |
Output is correct |
52 |
Correct |
541 ms |
72656 KB |
Output is correct |
53 |
Correct |
165 ms |
39416 KB |
Output is correct |
54 |
Correct |
479 ms |
72524 KB |
Output is correct |
55 |
Correct |
441 ms |
64420 KB |
Output is correct |
56 |
Correct |
477 ms |
72516 KB |
Output is correct |
57 |
Correct |
66 ms |
21092 KB |
Output is correct |
58 |
Correct |
505 ms |
72524 KB |
Output is correct |
59 |
Correct |
261 ms |
49600 KB |
Output is correct |
60 |
Correct |
536 ms |
72556 KB |
Output is correct |
61 |
Correct |
310 ms |
70916 KB |
Output is correct |
62 |
Correct |
274 ms |
71024 KB |
Output is correct |
63 |
Correct |
281 ms |
71020 KB |
Output is correct |
64 |
Correct |
248 ms |
71508 KB |
Output is correct |
65 |
Correct |
328 ms |
71164 KB |
Output is correct |
66 |
Correct |
329 ms |
71516 KB |
Output is correct |
67 |
Correct |
316 ms |
70780 KB |
Output is correct |
68 |
Correct |
317 ms |
70920 KB |
Output is correct |
69 |
Correct |
282 ms |
70756 KB |
Output is correct |
70 |
Correct |
368 ms |
71004 KB |
Output is correct |
71 |
Correct |
310 ms |
70844 KB |
Output is correct |
72 |
Correct |
306 ms |
70968 KB |
Output is correct |
73 |
Correct |
1000 ms |
76184 KB |
Output is correct |
74 |
Correct |
681 ms |
73688 KB |
Output is correct |
75 |
Correct |
868 ms |
66836 KB |
Output is correct |
76 |
Correct |
1210 ms |
85540 KB |
Output is correct |
77 |
Correct |
636 ms |
48548 KB |
Output is correct |
78 |
Correct |
929 ms |
81476 KB |
Output is correct |
79 |
Correct |
1060 ms |
77208 KB |
Output is correct |
80 |
Correct |
1106 ms |
85524 KB |
Output is correct |
81 |
Correct |
337 ms |
32064 KB |
Output is correct |
82 |
Correct |
876 ms |
79176 KB |
Output is correct |
83 |
Correct |
751 ms |
62020 KB |
Output is correct |
84 |
Correct |
978 ms |
85544 KB |
Output is correct |
85 |
Correct |
569 ms |
77992 KB |
Output is correct |
86 |
Correct |
767 ms |
82844 KB |
Output is correct |
87 |
Correct |
339 ms |
72828 KB |
Output is correct |
88 |
Correct |
709 ms |
83324 KB |
Output is correct |
89 |
Correct |
636 ms |
79900 KB |
Output is correct |
90 |
Correct |
732 ms |
83308 KB |
Output is correct |
91 |
Correct |
454 ms |
74992 KB |
Output is correct |
92 |
Correct |
728 ms |
82704 KB |
Output is correct |
93 |
Correct |
346 ms |
72920 KB |
Output is correct |
94 |
Correct |
744 ms |
82816 KB |
Output is correct |
95 |
Correct |
399 ms |
74148 KB |
Output is correct |
96 |
Correct |
682 ms |
82680 KB |
Output is correct |