//Challenge: Accepted
#include <bits/stdc++.h>
using namespace std;
#ifdef zisk
void debug(){cout << endl;}
template<class T, class ... U> void debug(T a, U ... b){cout << a << " ", debug(b...);}
template<class T> void pary(T l, T r) {
while (l != r) cout << *l << " ", l++;
cout << endl;
}
#else
#define debug(...) 0
#define pary(...) 0
#endif
#define ll long long
#define maxn 200005
#define pii pair<int, int>
#define ff first
#define ss second
#define io ios_base::sync_with_stdio(0);cin.tie(0);
const ll inf = 1<<30;
/*
struct beats{
ll mi[4*maxn], smi[4*maxn], ma[4*maxn], tag[4*maxn], arr[4*maxn], seg[4*maxn];
//Arr: single point array, ma: second array, seg = max(ma[i] - arr[i]), mi, smi, tag are to maintain ma
void push(int cur, int l, int r) {
}
void pull(int cur, int l, int r) {
}
void init(int cur, int l, int r) {
if (r <= l) return;
tag[cur] = 0;
if (r - l == 1) {
mi[cur] = -inf + 1, smi[cur] = -inf;
arr[cur] = inf;
seg[cur] = mi[cur] - arr[cur];
return;
}
int m = (l + r) / 2;
init(cur*2, l, m), init(cur*2+1, m, r);
pull(cur, l, r);
}
};
*/
struct segtree{
ll seg[4*maxn];
void init(int cur, int l, int r){
if (r <= l) return;
seg[cur] = inf;
if (r - l == 1) return;
int m = (l + r) / 2;
init(cur*2, l, m), init(cur*2+1, m, r);
}
void modify(int cur, int l, int r, int ind, ll val) {
if (r <= l) return;
if (r - l == 1) {
seg[cur] = val;
return;
}
int m = (l + r) / 2;
if (ind < m) modify(cur*2, l, m, ind, val);
else modify(cur*2+1, m, r, ind, val);
seg[cur] = min(seg[cur*2], seg[cur*2+1]);
}
ll query(int cur, int l, int r, int ql, int qr) {
if (r <= l || ql >= r || qr <= l) return inf;
if (ql <= l && qr >= r) return seg[cur];
int m = (l + r) / 2;
return min(query(cur*2, l, m, ql, qr),query(cur*2+1, m, r, ql, qr));
}
} tr;
ll h[maxn], ans[maxn];
int a[maxn], b[maxn];
vector<pii> que[maxn], ev[maxn];
void solve(int n) {
tr.init(1, 0, n);
for (int i = 0;i < n;i++) ev[i].clear();
for (int i = 0;i < n;i++) {
for (auto [id, ch]:ev[i]) {
debug(id, ch);
if (ch == 1) tr.modify(1, 0, n, id, h[id]);
else tr.modify(1, 0, n, id, inf);
}
int l = max(0, i - b[i]), r = max(0, i - a[i]);
debug(i, h[i], tr.query(1, 0, n, l, r+1));
ans[0] = max(ans[0], h[i] - tr.query(1, 0, n, l, r+1));
l = min(n-1, i+a[i]), r = min(n, i + b[i] + 1);
ev[l].push_back({i, 1}), ev[r].push_back({i, -1});
}
}
int main() {
io
int n;
cin >> n;
for (int i = 0;i < n;i++) {
cin >> h[i] >> a[i] >> b[i];
}
ans[0] = -1;
int q;
cin >> q;
for (int i = 0;i < q;i++) {
int l, r;
cin >> l >> r;
r--, l--;
que[r].push_back({l, i});
}
solve(n);
for (int i = 0;i < n;i++) h[i] = -h[i];
solve(n);
for (int i = 0;i < q;i++) cout << ans[i] << "\n";
}
Compilation message
antennas.cpp: In function 'void solve(int)':
antennas.cpp:12:20: warning: statement has no effect [-Wunused-value]
12 | #define debug(...) 0
| ^
antennas.cpp:83:4: note: in expansion of macro 'debug'
83 | debug(id, ch);
| ^~~~~
antennas.cpp:12:20: warning: statement has no effect [-Wunused-value]
12 | #define debug(...) 0
| ^
antennas.cpp:88:3: note: in expansion of macro 'debug'
88 | debug(i, h[i], tr.query(1, 0, n, l, r+1));
| ^~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
9712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
9712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
243 ms |
28908 KB |
Output is correct |
| 2 |
Correct |
293 ms |
30092 KB |
Output is correct |
| 3 |
Correct |
190 ms |
24124 KB |
Output is correct |
| 4 |
Correct |
252 ms |
30020 KB |
Output is correct |
| 5 |
Correct |
129 ms |
19220 KB |
Output is correct |
| 6 |
Correct |
244 ms |
29900 KB |
Output is correct |
| 7 |
Correct |
212 ms |
26068 KB |
Output is correct |
| 8 |
Correct |
268 ms |
29896 KB |
Output is correct |
| 9 |
Correct |
48 ms |
12544 KB |
Output is correct |
| 10 |
Correct |
248 ms |
29928 KB |
Output is correct |
| 11 |
Correct |
140 ms |
21180 KB |
Output is correct |
| 12 |
Correct |
246 ms |
29996 KB |
Output is correct |
| 13 |
Correct |
157 ms |
26528 KB |
Output is correct |
| 14 |
Correct |
174 ms |
28272 KB |
Output is correct |
| 15 |
Correct |
156 ms |
26188 KB |
Output is correct |
| 16 |
Correct |
148 ms |
26568 KB |
Output is correct |
| 17 |
Correct |
213 ms |
26536 KB |
Output is correct |
| 18 |
Correct |
152 ms |
26472 KB |
Output is correct |
| 19 |
Correct |
172 ms |
26480 KB |
Output is correct |
| 20 |
Correct |
215 ms |
26040 KB |
Output is correct |
| 21 |
Correct |
149 ms |
28504 KB |
Output is correct |
| 22 |
Correct |
164 ms |
28248 KB |
Output is correct |
| 23 |
Correct |
163 ms |
26440 KB |
Output is correct |
| 24 |
Correct |
152 ms |
26976 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Incorrect |
5 ms |
9712 KB |
Output isn't correct |
| 2 |
Halted |
0 ms |
0 KB |
- |
