#include <bits/stdc++.h>
using namespace std;
#define all(v) v.begin(), v.end()
typedef long long ll;
const int NMAX = 2e5 + 5;
const ll inf = 1e18;
ll n, h[NMAX], a[NMAX], b[NMAX], Q, ans[NMAX], l[NMAX], r[NMAX], base = 1, s, e;
vector<ll> p[NMAX], m[NMAX];
vector<pair<ll, ll>> query[NMAX];
vector<ll> c, d, lazy;
void init() {
for (int i = 1; i <= n + 1; i++) {
p[i].clear();
m[i].clear();
}
for (int i = 1; i < base * 2; i++) c[i] = inf, d[i] = -inf, lazy[i] = -1;
return;
}
void upd_lazy(ll idx) {
if (lazy[idx] == -1) return;
d[idx] = max(d[idx], lazy[idx] - c[idx]);
if (idx < base) {
lazy[idx * 2] = max(lazy[idx * 2], lazy[idx]);
lazy[idx * 2 + 1] = max(lazy[idx * 2 + 1], lazy[idx]);
}
lazy[idx] = -1;
return;
}
void updc(ll idx, ll nl, ll nr, ll k, ll v) {
upd_lazy(idx);
if (nl == nr) {
c[idx] = v;
return;
}
ll mid = (nl + nr) / 2;
if (k <= mid) updc(idx * 2, nl, mid, k, v);
else updc(idx * 2 + 1, mid + 1, nr, k, v);
c[idx] = min(c[idx * 2], c[idx * 2 + 1]);
return;
}
ll minc(ll l, ll r) {
ll ret = inf;
l += base; r += base;
while (l <= r) {
if (l & 1) ret = min(ret, c[l++]);
if (!(r & 1)) ret = min(ret, c[r--]);
l /= 2; r /= 2;
}
return ret;
}
void updd(ll idx, ll nl, ll nr, ll l, ll r, ll v) {
upd_lazy(idx);
if (nr < l || nl > r) return;
if (nl >= l && nr <= r) {
d[idx] = max(d[idx], v - c[idx]);
if (nl != nr) {
lazy[idx * 2] = max(lazy[idx * 2], v);
lazy[idx * 2 + 1] = max(lazy[idx * 2 + 1], v);
}
return;
}
ll mid = (nl + nr) / 2;
updd(idx * 2, nl, mid, l, r, v);
updd(idx * 2 + 1, mid + 1, nr, l, r, v);
d[idx] = max(d[idx * 2], d[idx * 2 + 1]);
return;
}
ll mxd(ll idx, ll nl, ll nr, ll l, ll r) {
upd_lazy(idx);
if (nr < l || nl > r) return -inf;
if (nl >= l && nr <= r) return d[idx];
ll mid = (nl + nr) / 2;
return max(mxd(idx * 2, nl, mid, l, r), mxd(idx * 2 + 1, mid + 1, nr, l, r));
}
void go() {
init();
for (int i = 1; i <= n; i++) {
s = i + a[i];
e = min(i + b[i] + 1, n + 1);
if (s <= n) {
p[s].emplace_back(i);
m[e].emplace_back(i);
}
for (ll x : p[i]) updc(1, 0, base - 1, x, h[x]);
for (ll x : m[i]) updc(1, 0, base - 1, x, inf);
if (i > 1) {
s = max(i - b[i], 1LL);
e = i - a[i];
if (e >= 1) updd(1, 0, base - 1, s, e, h[i]);
for (auto& q : query[i])
ans[q.second] = max(ans[q.second], mxd(1, 0, base - 1, q.first, i));
}
}
return;
}
int main(void) {
ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
cin >> n;
while (base < n + 1) base *= 2;
c.resize(base * 2); d.resize(base * 2); lazy.resize(base * 2);
for (int i = 1; i <= n; i++) cin >> h[i] >> a[i] >> b[i];
cin >> Q;
for (int i = 0; i < Q; i++) {
cin >> l[i] >> r[i];
query[r[i]].emplace_back(l[i], i);
ans[i] = -1;
}
go();
reverse(h + 1, h + n + 1);
reverse(a + 1, a + n + 1);
reverse(b + 1, b + n + 1);
for (int i = 1; i <= n; i++) query[i].clear();
for (int i = 0; i < Q; i++) {
l[i] = n + 1 - l[i];
r[i] = n + 1 - r[i];
swap(l[i], r[i]);
query[r[i]].emplace_back(l[i], i);
}
go();
for (int i = 0; i < Q; i++) {
cout << ans[i] << '\n';
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
8 ms |
14416 KB |
Output is correct |
3 |
Correct |
9 ms |
14424 KB |
Output is correct |
4 |
Correct |
10 ms |
14412 KB |
Output is correct |
5 |
Correct |
8 ms |
14384 KB |
Output is correct |
6 |
Correct |
9 ms |
14452 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
10 ms |
14512 KB |
Output is correct |
9 |
Correct |
9 ms |
14404 KB |
Output is correct |
10 |
Correct |
9 ms |
14412 KB |
Output is correct |
11 |
Correct |
9 ms |
14416 KB |
Output is correct |
12 |
Correct |
9 ms |
14412 KB |
Output is correct |
13 |
Correct |
8 ms |
14452 KB |
Output is correct |
14 |
Correct |
9 ms |
14668 KB |
Output is correct |
15 |
Correct |
9 ms |
14488 KB |
Output is correct |
16 |
Correct |
9 ms |
14412 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14412 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14424 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
8 ms |
14412 KB |
Output is correct |
23 |
Correct |
8 ms |
14416 KB |
Output is correct |
24 |
Correct |
9 ms |
14412 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
8 ms |
14416 KB |
Output is correct |
3 |
Correct |
9 ms |
14424 KB |
Output is correct |
4 |
Correct |
10 ms |
14412 KB |
Output is correct |
5 |
Correct |
8 ms |
14384 KB |
Output is correct |
6 |
Correct |
9 ms |
14452 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
10 ms |
14512 KB |
Output is correct |
9 |
Correct |
9 ms |
14404 KB |
Output is correct |
10 |
Correct |
9 ms |
14412 KB |
Output is correct |
11 |
Correct |
9 ms |
14416 KB |
Output is correct |
12 |
Correct |
9 ms |
14412 KB |
Output is correct |
13 |
Correct |
8 ms |
14452 KB |
Output is correct |
14 |
Correct |
9 ms |
14668 KB |
Output is correct |
15 |
Correct |
9 ms |
14488 KB |
Output is correct |
16 |
Correct |
9 ms |
14412 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14412 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14424 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
8 ms |
14412 KB |
Output is correct |
23 |
Correct |
8 ms |
14416 KB |
Output is correct |
24 |
Correct |
9 ms |
14412 KB |
Output is correct |
25 |
Correct |
137 ms |
25292 KB |
Output is correct |
26 |
Correct |
28 ms |
15820 KB |
Output is correct |
27 |
Correct |
205 ms |
29400 KB |
Output is correct |
28 |
Correct |
217 ms |
29016 KB |
Output is correct |
29 |
Correct |
145 ms |
25592 KB |
Output is correct |
30 |
Correct |
143 ms |
24796 KB |
Output is correct |
31 |
Correct |
155 ms |
27844 KB |
Output is correct |
32 |
Correct |
218 ms |
29152 KB |
Output is correct |
33 |
Correct |
197 ms |
28804 KB |
Output is correct |
34 |
Correct |
102 ms |
21584 KB |
Output is correct |
35 |
Correct |
209 ms |
29888 KB |
Output is correct |
36 |
Correct |
249 ms |
29088 KB |
Output is correct |
37 |
Correct |
119 ms |
22596 KB |
Output is correct |
38 |
Correct |
208 ms |
28044 KB |
Output is correct |
39 |
Correct |
44 ms |
16580 KB |
Output is correct |
40 |
Correct |
207 ms |
28064 KB |
Output is correct |
41 |
Correct |
147 ms |
25044 KB |
Output is correct |
42 |
Correct |
223 ms |
28140 KB |
Output is correct |
43 |
Correct |
71 ms |
19244 KB |
Output is correct |
44 |
Correct |
196 ms |
27972 KB |
Output is correct |
45 |
Correct |
43 ms |
17048 KB |
Output is correct |
46 |
Correct |
204 ms |
28080 KB |
Output is correct |
47 |
Correct |
58 ms |
18116 KB |
Output is correct |
48 |
Correct |
197 ms |
27972 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
528 ms |
36504 KB |
Output is correct |
2 |
Correct |
586 ms |
42024 KB |
Output is correct |
3 |
Correct |
396 ms |
37508 KB |
Output is correct |
4 |
Correct |
600 ms |
42076 KB |
Output is correct |
5 |
Correct |
219 ms |
27684 KB |
Output is correct |
6 |
Correct |
570 ms |
42160 KB |
Output is correct |
7 |
Correct |
494 ms |
40204 KB |
Output is correct |
8 |
Correct |
596 ms |
42144 KB |
Output is correct |
9 |
Correct |
66 ms |
18372 KB |
Output is correct |
10 |
Correct |
568 ms |
42056 KB |
Output is correct |
11 |
Correct |
345 ms |
30204 KB |
Output is correct |
12 |
Correct |
573 ms |
42044 KB |
Output is correct |
13 |
Correct |
370 ms |
41148 KB |
Output is correct |
14 |
Correct |
363 ms |
40864 KB |
Output is correct |
15 |
Correct |
322 ms |
39800 KB |
Output is correct |
16 |
Correct |
309 ms |
40108 KB |
Output is correct |
17 |
Correct |
387 ms |
41776 KB |
Output is correct |
18 |
Correct |
329 ms |
40700 KB |
Output is correct |
19 |
Correct |
333 ms |
40580 KB |
Output is correct |
20 |
Correct |
346 ms |
40684 KB |
Output is correct |
21 |
Correct |
332 ms |
40976 KB |
Output is correct |
22 |
Correct |
355 ms |
40720 KB |
Output is correct |
23 |
Correct |
332 ms |
41144 KB |
Output is correct |
24 |
Correct |
330 ms |
39468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
8 ms |
14412 KB |
Output is correct |
2 |
Correct |
8 ms |
14416 KB |
Output is correct |
3 |
Correct |
9 ms |
14424 KB |
Output is correct |
4 |
Correct |
10 ms |
14412 KB |
Output is correct |
5 |
Correct |
8 ms |
14384 KB |
Output is correct |
6 |
Correct |
9 ms |
14452 KB |
Output is correct |
7 |
Correct |
9 ms |
14412 KB |
Output is correct |
8 |
Correct |
10 ms |
14512 KB |
Output is correct |
9 |
Correct |
9 ms |
14404 KB |
Output is correct |
10 |
Correct |
9 ms |
14412 KB |
Output is correct |
11 |
Correct |
9 ms |
14416 KB |
Output is correct |
12 |
Correct |
9 ms |
14412 KB |
Output is correct |
13 |
Correct |
8 ms |
14452 KB |
Output is correct |
14 |
Correct |
9 ms |
14668 KB |
Output is correct |
15 |
Correct |
9 ms |
14488 KB |
Output is correct |
16 |
Correct |
9 ms |
14412 KB |
Output is correct |
17 |
Correct |
9 ms |
14412 KB |
Output is correct |
18 |
Correct |
9 ms |
14412 KB |
Output is correct |
19 |
Correct |
9 ms |
14412 KB |
Output is correct |
20 |
Correct |
10 ms |
14424 KB |
Output is correct |
21 |
Correct |
8 ms |
14412 KB |
Output is correct |
22 |
Correct |
8 ms |
14412 KB |
Output is correct |
23 |
Correct |
8 ms |
14416 KB |
Output is correct |
24 |
Correct |
9 ms |
14412 KB |
Output is correct |
25 |
Correct |
137 ms |
25292 KB |
Output is correct |
26 |
Correct |
28 ms |
15820 KB |
Output is correct |
27 |
Correct |
205 ms |
29400 KB |
Output is correct |
28 |
Correct |
217 ms |
29016 KB |
Output is correct |
29 |
Correct |
145 ms |
25592 KB |
Output is correct |
30 |
Correct |
143 ms |
24796 KB |
Output is correct |
31 |
Correct |
155 ms |
27844 KB |
Output is correct |
32 |
Correct |
218 ms |
29152 KB |
Output is correct |
33 |
Correct |
197 ms |
28804 KB |
Output is correct |
34 |
Correct |
102 ms |
21584 KB |
Output is correct |
35 |
Correct |
209 ms |
29888 KB |
Output is correct |
36 |
Correct |
249 ms |
29088 KB |
Output is correct |
37 |
Correct |
119 ms |
22596 KB |
Output is correct |
38 |
Correct |
208 ms |
28044 KB |
Output is correct |
39 |
Correct |
44 ms |
16580 KB |
Output is correct |
40 |
Correct |
207 ms |
28064 KB |
Output is correct |
41 |
Correct |
147 ms |
25044 KB |
Output is correct |
42 |
Correct |
223 ms |
28140 KB |
Output is correct |
43 |
Correct |
71 ms |
19244 KB |
Output is correct |
44 |
Correct |
196 ms |
27972 KB |
Output is correct |
45 |
Correct |
43 ms |
17048 KB |
Output is correct |
46 |
Correct |
204 ms |
28080 KB |
Output is correct |
47 |
Correct |
58 ms |
18116 KB |
Output is correct |
48 |
Correct |
197 ms |
27972 KB |
Output is correct |
49 |
Correct |
528 ms |
36504 KB |
Output is correct |
50 |
Correct |
586 ms |
42024 KB |
Output is correct |
51 |
Correct |
396 ms |
37508 KB |
Output is correct |
52 |
Correct |
600 ms |
42076 KB |
Output is correct |
53 |
Correct |
219 ms |
27684 KB |
Output is correct |
54 |
Correct |
570 ms |
42160 KB |
Output is correct |
55 |
Correct |
494 ms |
40204 KB |
Output is correct |
56 |
Correct |
596 ms |
42144 KB |
Output is correct |
57 |
Correct |
66 ms |
18372 KB |
Output is correct |
58 |
Correct |
568 ms |
42056 KB |
Output is correct |
59 |
Correct |
345 ms |
30204 KB |
Output is correct |
60 |
Correct |
573 ms |
42044 KB |
Output is correct |
61 |
Correct |
370 ms |
41148 KB |
Output is correct |
62 |
Correct |
363 ms |
40864 KB |
Output is correct |
63 |
Correct |
322 ms |
39800 KB |
Output is correct |
64 |
Correct |
309 ms |
40108 KB |
Output is correct |
65 |
Correct |
387 ms |
41776 KB |
Output is correct |
66 |
Correct |
329 ms |
40700 KB |
Output is correct |
67 |
Correct |
333 ms |
40580 KB |
Output is correct |
68 |
Correct |
346 ms |
40684 KB |
Output is correct |
69 |
Correct |
332 ms |
40976 KB |
Output is correct |
70 |
Correct |
355 ms |
40720 KB |
Output is correct |
71 |
Correct |
332 ms |
41144 KB |
Output is correct |
72 |
Correct |
330 ms |
39468 KB |
Output is correct |
73 |
Correct |
932 ms |
53900 KB |
Output is correct |
74 |
Correct |
641 ms |
43656 KB |
Output is correct |
75 |
Correct |
880 ms |
54328 KB |
Output is correct |
76 |
Correct |
1154 ms |
59576 KB |
Output is correct |
77 |
Correct |
553 ms |
39820 KB |
Output is correct |
78 |
Correct |
996 ms |
54112 KB |
Output is correct |
79 |
Correct |
1051 ms |
57300 KB |
Output is correct |
80 |
Correct |
1150 ms |
59572 KB |
Output is correct |
81 |
Correct |
406 ms |
33424 KB |
Output is correct |
82 |
Correct |
864 ms |
51080 KB |
Output is correct |
83 |
Correct |
792 ms |
46920 KB |
Output is correct |
84 |
Correct |
1183 ms |
59588 KB |
Output is correct |
85 |
Correct |
635 ms |
51016 KB |
Output is correct |
86 |
Correct |
776 ms |
57220 KB |
Output is correct |
87 |
Correct |
374 ms |
42456 KB |
Output is correct |
88 |
Correct |
789 ms |
56560 KB |
Output is correct |
89 |
Correct |
733 ms |
54004 KB |
Output is correct |
90 |
Correct |
808 ms |
56852 KB |
Output is correct |
91 |
Correct |
487 ms |
46456 KB |
Output is correct |
92 |
Correct |
830 ms |
56964 KB |
Output is correct |
93 |
Correct |
441 ms |
44176 KB |
Output is correct |
94 |
Correct |
842 ms |
57024 KB |
Output is correct |
95 |
Correct |
462 ms |
45772 KB |
Output is correct |
96 |
Correct |
776 ms |
55776 KB |
Output is correct |