#include <bits/stdc++.h>
#define ll long long
#define ld long double
#define sp ' '
#define en '\n'
#define smin(a, b) a = min(a, b)
#define smax(a, b) a = max(a, b)
using namespace std;
const int N = 2e5 + 2;
const int inf = 2e9;
int mn[4 * N], mx[4 * N], st[4 * N], lzymn[4 * N], lzymx[4 * N], h[N];
void Propagate(int node, int l, int r) {
if (lzymn[node] == inf) return;
smax(st[node], lzymx[node] - mn[node]);
smax(st[node], mx[node] - lzymn[node]);
if (l < r) {
smin(lzymn[2 * node], lzymn[node]);
smin(lzymn[2 * node + 1], lzymn[node]);
smax(lzymx[2 * node], lzymx[node]);
smax(lzymx[2 * node + 1], lzymx[node]);
}
lzymn[node] = inf; lzymx[node] = -1;
}
void Update(int node, int l, int r, int x, int y) {
Propagate(node, l, r);
if (l == r) {
if (y == 0) {mn[node] = mx[node] = h[l];}
else {mn[node] = inf; mx[node] = -1;}
return;
}
int mid = l + r >> 1;
if (x <= mid) Update(2 * node, l, mid, x, y);
else Update(2 * node + 1, mid + 1, r, x, y);
mn[node] = min(mn[2 * node], mn[2 * node + 1]);
mx[node] = max(mx[2 * node], mx[2 * node + 1]);
smax(st[node], max(st[2 * node], st[2 * node + 1]));
}
void Add(int node, int l, int r, int ql, int qr, int v) {
Propagate(node, l, r);
if (r < ql || qr < l) return;
if (ql <= l && r <= qr) {
lzymn[node] = lzymx[node] = v;
Propagate(node, l, r);
return;
}
int mid = l + r >> 1;
Add(2 * node, l, mid, ql, qr, v);
Add(2 * node + 1, mid + 1, r, ql, qr, v);
smax(st[node], max(st[2 * node], st[2 * node + 1]));
}
int Get(int node, int l, int r, int ql, int qr) {
Propagate(node, l, r);
if (r < ql || qr < l) return -1;
if (ql <= l && r <= qr) return st[node];
int mid = l + r >> 1;
int aa = Get(2 * node, l, mid, ql, qr);
int bb = Get(2 * node + 1, mid + 1, r, ql, qr);
smax(st[node], max(st[2 * node], st[2 * node + 1]));
return max(aa, bb);
}
int main() {
ios::sync_with_stdio(false);
cin.tie(0);
cout.tie(0);
int n; cin >> n;
vector<int> a(n), b(n);
vector<vector<array<int, 2>>> op(n);
for (int i = 0; i < n; i++) {
cin >> h[i] >> a[i] >> b[i];
if (i + a[i] < n) op[i + a[i]].push_back({i, 0});
if (i + b[i] + 1 < n) op[i + b[i] + 1].push_back({i, 1});
}
int q; cin >> q;
vector<int> l(q), r(q), ans(q);
vector<vector<int>> qq(n);
for (int i = 0; i < q; i++) {
cin >> l[i] >> r[i];
l[i] -= 1; r[i] -= 1;
qq[r[i]].push_back(i);
}
for (int i = 1; i <= 4 * n; i++) {mn[i] = lzymn[i] = inf; mx[i] = lzymx[i] = st[i] = -1;}
for (int i = 0; i < n; i++) {
for (auto u : op[i]) Update(1, 0, n - 1, u[0], u[1]);
if (i >= a[i]) Add(1, 0, n - 1, max(0, i - b[i]), i - a[i], h[i]);
for (int j : qq[i]) ans[j] = Get(1, 0, n - 1, l[j], i);
}
for (int i = 0; i < q; i++) cout << ans[i] << en;
return 0;
}
Compilation message
antennas.cpp: In function 'void Update(int, int, int, int, int)':
antennas.cpp:31:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
31 | int mid = l + r >> 1;
| ~~^~~
antennas.cpp: In function 'void Add(int, int, int, int, int, int)':
antennas.cpp:46:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
46 | int mid = l + r >> 1;
| ~~^~~
antennas.cpp: In function 'int Get(int, int, int, int, int)':
antennas.cpp:55:17: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
55 | int mid = l + r >> 1;
| ~~^~~
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
72 ms |
5516 KB |
Output is correct |
26 |
Correct |
13 ms |
1236 KB |
Output is correct |
27 |
Correct |
106 ms |
7716 KB |
Output is correct |
28 |
Correct |
104 ms |
7824 KB |
Output is correct |
29 |
Correct |
83 ms |
5512 KB |
Output is correct |
30 |
Correct |
69 ms |
5444 KB |
Output is correct |
31 |
Correct |
85 ms |
6828 KB |
Output is correct |
32 |
Correct |
111 ms |
7904 KB |
Output is correct |
33 |
Correct |
99 ms |
7220 KB |
Output is correct |
34 |
Correct |
60 ms |
4104 KB |
Output is correct |
35 |
Correct |
109 ms |
7628 KB |
Output is correct |
36 |
Correct |
101 ms |
7848 KB |
Output is correct |
37 |
Correct |
58 ms |
4244 KB |
Output is correct |
38 |
Correct |
103 ms |
6872 KB |
Output is correct |
39 |
Correct |
15 ms |
1532 KB |
Output is correct |
40 |
Correct |
97 ms |
6860 KB |
Output is correct |
41 |
Correct |
71 ms |
5136 KB |
Output is correct |
42 |
Correct |
107 ms |
6800 KB |
Output is correct |
43 |
Correct |
36 ms |
2628 KB |
Output is correct |
44 |
Correct |
96 ms |
6840 KB |
Output is correct |
45 |
Correct |
19 ms |
1660 KB |
Output is correct |
46 |
Correct |
123 ms |
6896 KB |
Output is correct |
47 |
Correct |
31 ms |
2288 KB |
Output is correct |
48 |
Correct |
99 ms |
6884 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
230 ms |
31984 KB |
Output is correct |
2 |
Correct |
264 ms |
35408 KB |
Output is correct |
3 |
Correct |
180 ms |
24888 KB |
Output is correct |
4 |
Correct |
252 ms |
35380 KB |
Output is correct |
5 |
Correct |
90 ms |
16448 KB |
Output is correct |
6 |
Correct |
278 ms |
35440 KB |
Output is correct |
7 |
Correct |
191 ms |
30760 KB |
Output is correct |
8 |
Correct |
256 ms |
35492 KB |
Output is correct |
9 |
Correct |
28 ms |
5844 KB |
Output is correct |
10 |
Correct |
230 ms |
35408 KB |
Output is correct |
11 |
Correct |
130 ms |
22152 KB |
Output is correct |
12 |
Correct |
258 ms |
35400 KB |
Output is correct |
13 |
Correct |
148 ms |
33976 KB |
Output is correct |
14 |
Correct |
143 ms |
33976 KB |
Output is correct |
15 |
Correct |
138 ms |
33956 KB |
Output is correct |
16 |
Correct |
146 ms |
34636 KB |
Output is correct |
17 |
Correct |
148 ms |
34100 KB |
Output is correct |
18 |
Correct |
134 ms |
34508 KB |
Output is correct |
19 |
Correct |
146 ms |
33844 KB |
Output is correct |
20 |
Correct |
136 ms |
33972 KB |
Output is correct |
21 |
Correct |
139 ms |
33340 KB |
Output is correct |
22 |
Correct |
144 ms |
33872 KB |
Output is correct |
23 |
Correct |
152 ms |
33848 KB |
Output is correct |
24 |
Correct |
122 ms |
34016 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
1 ms |
340 KB |
Output is correct |
2 |
Correct |
1 ms |
340 KB |
Output is correct |
3 |
Correct |
1 ms |
340 KB |
Output is correct |
4 |
Correct |
1 ms |
340 KB |
Output is correct |
5 |
Correct |
1 ms |
340 KB |
Output is correct |
6 |
Correct |
1 ms |
340 KB |
Output is correct |
7 |
Correct |
1 ms |
332 KB |
Output is correct |
8 |
Correct |
1 ms |
340 KB |
Output is correct |
9 |
Correct |
1 ms |
340 KB |
Output is correct |
10 |
Correct |
1 ms |
340 KB |
Output is correct |
11 |
Correct |
1 ms |
340 KB |
Output is correct |
12 |
Correct |
1 ms |
340 KB |
Output is correct |
13 |
Correct |
1 ms |
352 KB |
Output is correct |
14 |
Correct |
1 ms |
340 KB |
Output is correct |
15 |
Correct |
1 ms |
340 KB |
Output is correct |
16 |
Correct |
1 ms |
340 KB |
Output is correct |
17 |
Correct |
1 ms |
340 KB |
Output is correct |
18 |
Correct |
1 ms |
340 KB |
Output is correct |
19 |
Correct |
1 ms |
340 KB |
Output is correct |
20 |
Correct |
1 ms |
340 KB |
Output is correct |
21 |
Correct |
1 ms |
340 KB |
Output is correct |
22 |
Correct |
1 ms |
340 KB |
Output is correct |
23 |
Correct |
1 ms |
340 KB |
Output is correct |
24 |
Correct |
1 ms |
340 KB |
Output is correct |
25 |
Correct |
72 ms |
5516 KB |
Output is correct |
26 |
Correct |
13 ms |
1236 KB |
Output is correct |
27 |
Correct |
106 ms |
7716 KB |
Output is correct |
28 |
Correct |
104 ms |
7824 KB |
Output is correct |
29 |
Correct |
83 ms |
5512 KB |
Output is correct |
30 |
Correct |
69 ms |
5444 KB |
Output is correct |
31 |
Correct |
85 ms |
6828 KB |
Output is correct |
32 |
Correct |
111 ms |
7904 KB |
Output is correct |
33 |
Correct |
99 ms |
7220 KB |
Output is correct |
34 |
Correct |
60 ms |
4104 KB |
Output is correct |
35 |
Correct |
109 ms |
7628 KB |
Output is correct |
36 |
Correct |
101 ms |
7848 KB |
Output is correct |
37 |
Correct |
58 ms |
4244 KB |
Output is correct |
38 |
Correct |
103 ms |
6872 KB |
Output is correct |
39 |
Correct |
15 ms |
1532 KB |
Output is correct |
40 |
Correct |
97 ms |
6860 KB |
Output is correct |
41 |
Correct |
71 ms |
5136 KB |
Output is correct |
42 |
Correct |
107 ms |
6800 KB |
Output is correct |
43 |
Correct |
36 ms |
2628 KB |
Output is correct |
44 |
Correct |
96 ms |
6840 KB |
Output is correct |
45 |
Correct |
19 ms |
1660 KB |
Output is correct |
46 |
Correct |
123 ms |
6896 KB |
Output is correct |
47 |
Correct |
31 ms |
2288 KB |
Output is correct |
48 |
Correct |
99 ms |
6884 KB |
Output is correct |
49 |
Correct |
230 ms |
31984 KB |
Output is correct |
50 |
Correct |
264 ms |
35408 KB |
Output is correct |
51 |
Correct |
180 ms |
24888 KB |
Output is correct |
52 |
Correct |
252 ms |
35380 KB |
Output is correct |
53 |
Correct |
90 ms |
16448 KB |
Output is correct |
54 |
Correct |
278 ms |
35440 KB |
Output is correct |
55 |
Correct |
191 ms |
30760 KB |
Output is correct |
56 |
Correct |
256 ms |
35492 KB |
Output is correct |
57 |
Correct |
28 ms |
5844 KB |
Output is correct |
58 |
Correct |
230 ms |
35408 KB |
Output is correct |
59 |
Correct |
130 ms |
22152 KB |
Output is correct |
60 |
Correct |
258 ms |
35400 KB |
Output is correct |
61 |
Correct |
148 ms |
33976 KB |
Output is correct |
62 |
Correct |
143 ms |
33976 KB |
Output is correct |
63 |
Correct |
138 ms |
33956 KB |
Output is correct |
64 |
Correct |
146 ms |
34636 KB |
Output is correct |
65 |
Correct |
148 ms |
34100 KB |
Output is correct |
66 |
Correct |
134 ms |
34508 KB |
Output is correct |
67 |
Correct |
146 ms |
33844 KB |
Output is correct |
68 |
Correct |
136 ms |
33972 KB |
Output is correct |
69 |
Correct |
139 ms |
33340 KB |
Output is correct |
70 |
Correct |
144 ms |
33872 KB |
Output is correct |
71 |
Correct |
152 ms |
33848 KB |
Output is correct |
72 |
Correct |
122 ms |
34016 KB |
Output is correct |
73 |
Correct |
392 ms |
39628 KB |
Output is correct |
74 |
Correct |
291 ms |
36272 KB |
Output is correct |
75 |
Correct |
350 ms |
34504 KB |
Output is correct |
76 |
Correct |
468 ms |
45516 KB |
Output is correct |
77 |
Correct |
232 ms |
23268 KB |
Output is correct |
78 |
Correct |
395 ms |
42480 KB |
Output is correct |
79 |
Correct |
447 ms |
40676 KB |
Output is correct |
80 |
Correct |
461 ms |
45580 KB |
Output is correct |
81 |
Correct |
178 ms |
13852 KB |
Output is correct |
82 |
Correct |
346 ms |
40716 KB |
Output is correct |
83 |
Correct |
375 ms |
31676 KB |
Output is correct |
84 |
Correct |
461 ms |
45512 KB |
Output is correct |
85 |
Correct |
259 ms |
39480 KB |
Output is correct |
86 |
Correct |
334 ms |
42896 KB |
Output is correct |
87 |
Correct |
161 ms |
35472 KB |
Output is correct |
88 |
Correct |
353 ms |
43604 KB |
Output is correct |
89 |
Correct |
316 ms |
40960 KB |
Output is correct |
90 |
Correct |
339 ms |
43468 KB |
Output is correct |
91 |
Correct |
211 ms |
37340 KB |
Output is correct |
92 |
Correct |
337 ms |
42868 KB |
Output is correct |
93 |
Correct |
175 ms |
35456 KB |
Output is correct |
94 |
Correct |
354 ms |
42772 KB |
Output is correct |
95 |
Correct |
198 ms |
36548 KB |
Output is correct |
96 |
Correct |
314 ms |
43060 KB |
Output is correct |