#include <bits/stdc++.h>
using namespace std;
template<typename T>
void out(T x) { cout << x << endl; exit(0); }
#define watch(x) cout << (#x) << " is " << (x) << endl
using ll = long long;
const int maxn = 1e6 + 5;
int n;
ll x[maxn], g[maxn], d[maxn];
int main() {
ios_base::sync_with_stdio(false); cin.tie(0); cout.tie(0);
cin>>n;
for (int i=1; i<=n; i++) {
cin>>x[i]>>g[i]>>d[i];
g[i]+=g[i-1];
d[i]+=d[i-1];
}
map<ll,ll> mp; // mono-decreasing
auto insert = [&](ll k, ll v) {
auto iter = mp.lower_bound(k);
// inserting v is useless
if (iter != mp.end() && iter->second >= v) {
return;
}
mp[k] = v;
iter = mp.lower_bound(k);
if (iter == mp.begin()) return;
--iter;
while (true) {
if (iter->second > v) break;
auto it2 = iter;
bool done = false;
if (it2==mp.begin()) {
done=true;
} else {
--it2;
}
mp.erase(iter);
if (done) break;
iter = it2;
}
};
auto check = [&]() {
ll last = 1e18;
for (auto p: mp) {
if (p.second > last) return false;
last = p.second;
}
return true;
};
ll ans = 0;
for (int i=1; i<=n; i++) {
insert(x[i]-d[i-1], -g[i-1]);
auto iter = mp.lower_bound(x[i]-d[i]);
if (iter != mp.end()) {
ans = max(ans, g[i]+iter->second);
}
//assert(check());
}
cout<<ans<<endl;
return 0;
}
Compilation message
divide.cpp: In function 'int main()':
divide.cpp:64:10: warning: variable 'check' set but not used [-Wunused-but-set-variable]
64 | auto check = [&]() {
| ^~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
512 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
512 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
384 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
2 ms |
492 KB |
Output is correct |
| 23 |
Correct |
4 ms |
748 KB |
Output is correct |
| 24 |
Correct |
3 ms |
748 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
1 ms |
364 KB |
Output is correct |
| 2 |
Correct |
1 ms |
364 KB |
Output is correct |
| 3 |
Correct |
0 ms |
364 KB |
Output is correct |
| 4 |
Correct |
1 ms |
364 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
1 ms |
364 KB |
Output is correct |
| 7 |
Correct |
1 ms |
512 KB |
Output is correct |
| 8 |
Correct |
0 ms |
364 KB |
Output is correct |
| 9 |
Correct |
1 ms |
364 KB |
Output is correct |
| 10 |
Correct |
1 ms |
364 KB |
Output is correct |
| 11 |
Correct |
1 ms |
364 KB |
Output is correct |
| 12 |
Correct |
1 ms |
364 KB |
Output is correct |
| 13 |
Correct |
1 ms |
364 KB |
Output is correct |
| 14 |
Correct |
1 ms |
364 KB |
Output is correct |
| 15 |
Correct |
1 ms |
364 KB |
Output is correct |
| 16 |
Correct |
1 ms |
364 KB |
Output is correct |
| 17 |
Correct |
1 ms |
384 KB |
Output is correct |
| 18 |
Correct |
1 ms |
364 KB |
Output is correct |
| 19 |
Correct |
1 ms |
364 KB |
Output is correct |
| 20 |
Correct |
1 ms |
364 KB |
Output is correct |
| 21 |
Correct |
1 ms |
364 KB |
Output is correct |
| 22 |
Correct |
2 ms |
492 KB |
Output is correct |
| 23 |
Correct |
4 ms |
748 KB |
Output is correct |
| 24 |
Correct |
3 ms |
748 KB |
Output is correct |
| 25 |
Correct |
2 ms |
492 KB |
Output is correct |
| 26 |
Correct |
5 ms |
620 KB |
Output is correct |
| 27 |
Correct |
4 ms |
620 KB |
Output is correct |
| 28 |
Correct |
22 ms |
1516 KB |
Output is correct |
| 29 |
Correct |
18 ms |
2796 KB |
Output is correct |
| 30 |
Correct |
41 ms |
5592 KB |
Output is correct |
| 31 |
Correct |
30 ms |
4460 KB |
Output is correct |
| 32 |
Correct |
31 ms |
4588 KB |
Output is correct |
| 33 |
Correct |
30 ms |
4332 KB |
Output is correct |
| 34 |
Correct |
74 ms |
7532 KB |
Output is correct |
| 35 |
Correct |
104 ms |
11140 KB |
Output is correct |
| 36 |
Correct |
86 ms |
11072 KB |
Output is correct |
