/*input
4 6
1 5
2 5
2 8
3 3
3 2
3 3
2 9
4 4
4 3
*/
#include <iostream>
#include <vector>
#include <algorithm>
#include <queue>
using namespace std;
struct Curve : priority_queue<long long>
{
long long end_slope, offset;
void swap(Curve &rhs)
{
priority_queue::swap(rhs);
std::swap(end_slope, rhs.end_slope);
std::swap(offset, rhs.offset);
}
void init(long long x)
{
while (!empty()) pop();
push(x), push(x);
end_slope = 1;
offset = 0;
}
void merge(Curve &rhs)
{
if (size() < rhs.size()) swap(rhs);
if (rhs.empty()) return;
if (top() < rhs.top()) offset = offset + rhs.offset + (long long) end_slope * (rhs.top() - top());
else offset = offset + rhs.offset + (long long) rhs.end_slope * (top() - rhs.top());
end_slope += rhs.end_slope;
for (; !rhs.empty(); rhs.pop()) push(rhs.top());
}
void normalize(long long x)
{
for (; end_slope > 1; --end_slope) {
long long t = top();
pop();
offset -= (long long) (t - top()) * (end_slope - 1);
}
long long first = top();
pop();
long long second = top();
pop();
push(second + x);
push(first + x);
}
};
int main()
{
ios_base::sync_with_stdio(0); cin.tie(0);
int N, M;
cin >> N >> M;
vector<int> P(N + M + 1), C(N + M + 1);
for (int i = 2; i <= N + M; ++i) cin >> P[i] >> C[i];
vector<Curve> curves(N + M + 1);
for (int i = N + M; i > N; --i) {
curves[i].init(C[i]);
curves[P[i]].merge(curves[i]);
}
for (int i = N; i > 1; --i) {
curves[i].normalize(C[i]);
curves[P[i]].merge(curves[i]);
}
curves[1].normalize(0);
cout << curves[1].offset << endl;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
384 KB |
Output is correct |
| 9 |
Correct |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
392 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
1 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
1 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
1 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
384 KB |
Output is correct |
| 9 |
Correct |
1 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
384 KB |
Output is correct |
| 11 |
Correct |
0 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
0 ms |
384 KB |
Output is correct |
| 15 |
Correct |
0 ms |
384 KB |
Output is correct |
| 16 |
Correct |
1 ms |
384 KB |
Output is correct |
| 17 |
Correct |
1 ms |
384 KB |
Output is correct |
| 18 |
Correct |
1 ms |
384 KB |
Output is correct |
| 19 |
Correct |
0 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
384 KB |
Output is correct |
| 9 |
Correct |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
0 ms |
384 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
0 ms |
384 KB |
Output is correct |
| 17 |
Correct |
0 ms |
384 KB |
Output is correct |
| 18 |
Correct |
0 ms |
384 KB |
Output is correct |
| 19 |
Correct |
1 ms |
384 KB |
Output is correct |
| 20 |
Correct |
0 ms |
384 KB |
Output is correct |
| 21 |
Correct |
0 ms |
384 KB |
Output is correct |
| 22 |
Correct |
0 ms |
384 KB |
Output is correct |
| 23 |
Correct |
1 ms |
384 KB |
Output is correct |
| 24 |
Correct |
0 ms |
384 KB |
Output is correct |
| 25 |
Correct |
0 ms |
384 KB |
Output is correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
0 ms |
384 KB |
Output is correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Correct |
1 ms |
512 KB |
Output is correct |
| 32 |
Correct |
1 ms |
512 KB |
Output is correct |
| 33 |
Correct |
2 ms |
512 KB |
Output is correct |
| 34 |
Correct |
2 ms |
640 KB |
Output is correct |
| 35 |
Correct |
2 ms |
768 KB |
Output is correct |
| 36 |
Correct |
2 ms |
768 KB |
Output is correct |
| 37 |
Correct |
3 ms |
896 KB |
Output is correct |
| 38 |
Correct |
3 ms |
896 KB |
Output is correct |
| 39 |
Correct |
3 ms |
896 KB |
Output is correct |
| 40 |
Correct |
2 ms |
640 KB |
Output is correct |
| 41 |
Correct |
2 ms |
640 KB |
Output is correct |
| 42 |
Correct |
2 ms |
640 KB |
Output is correct |
| 43 |
Correct |
3 ms |
768 KB |
Output is correct |
| 44 |
Correct |
3 ms |
896 KB |
Output is correct |
| 45 |
Correct |
3 ms |
896 KB |
Output is correct |
| 46 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 47 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 48 |
Correct |
3 ms |
896 KB |
Output is correct |
| 49 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 50 |
Correct |
3 ms |
896 KB |
Output is correct |
| 51 |
Correct |
3 ms |
896 KB |
Output is correct |
| 52 |
Correct |
3 ms |
896 KB |
Output is correct |
| 53 |
Correct |
3 ms |
896 KB |
Output is correct |
| 54 |
Correct |
3 ms |
896 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
0 ms |
384 KB |
Output is correct |
| 2 |
Correct |
0 ms |
384 KB |
Output is correct |
| 3 |
Correct |
0 ms |
384 KB |
Output is correct |
| 4 |
Correct |
0 ms |
384 KB |
Output is correct |
| 5 |
Correct |
0 ms |
384 KB |
Output is correct |
| 6 |
Correct |
0 ms |
384 KB |
Output is correct |
| 7 |
Correct |
0 ms |
384 KB |
Output is correct |
| 8 |
Correct |
0 ms |
384 KB |
Output is correct |
| 9 |
Correct |
0 ms |
384 KB |
Output is correct |
| 10 |
Correct |
0 ms |
392 KB |
Output is correct |
| 11 |
Correct |
1 ms |
384 KB |
Output is correct |
| 12 |
Correct |
0 ms |
384 KB |
Output is correct |
| 13 |
Correct |
1 ms |
384 KB |
Output is correct |
| 14 |
Correct |
0 ms |
384 KB |
Output is correct |
| 15 |
Correct |
1 ms |
384 KB |
Output is correct |
| 16 |
Correct |
0 ms |
384 KB |
Output is correct |
| 17 |
Correct |
0 ms |
384 KB |
Output is correct |
| 18 |
Correct |
0 ms |
384 KB |
Output is correct |
| 19 |
Correct |
1 ms |
384 KB |
Output is correct |
| 20 |
Correct |
0 ms |
384 KB |
Output is correct |
| 21 |
Correct |
0 ms |
384 KB |
Output is correct |
| 22 |
Correct |
0 ms |
384 KB |
Output is correct |
| 23 |
Correct |
1 ms |
384 KB |
Output is correct |
| 24 |
Correct |
0 ms |
384 KB |
Output is correct |
| 25 |
Correct |
0 ms |
384 KB |
Output is correct |
| 26 |
Correct |
1 ms |
384 KB |
Output is correct |
| 27 |
Correct |
1 ms |
384 KB |
Output is correct |
| 28 |
Correct |
1 ms |
384 KB |
Output is correct |
| 29 |
Correct |
0 ms |
384 KB |
Output is correct |
| 30 |
Correct |
1 ms |
384 KB |
Output is correct |
| 31 |
Correct |
1 ms |
512 KB |
Output is correct |
| 32 |
Correct |
1 ms |
512 KB |
Output is correct |
| 33 |
Correct |
2 ms |
512 KB |
Output is correct |
| 34 |
Correct |
2 ms |
640 KB |
Output is correct |
| 35 |
Correct |
2 ms |
768 KB |
Output is correct |
| 36 |
Correct |
2 ms |
768 KB |
Output is correct |
| 37 |
Correct |
3 ms |
896 KB |
Output is correct |
| 38 |
Correct |
3 ms |
896 KB |
Output is correct |
| 39 |
Correct |
3 ms |
896 KB |
Output is correct |
| 40 |
Correct |
2 ms |
640 KB |
Output is correct |
| 41 |
Correct |
2 ms |
640 KB |
Output is correct |
| 42 |
Correct |
2 ms |
640 KB |
Output is correct |
| 43 |
Correct |
3 ms |
768 KB |
Output is correct |
| 44 |
Correct |
3 ms |
896 KB |
Output is correct |
| 45 |
Correct |
3 ms |
896 KB |
Output is correct |
| 46 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 47 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 48 |
Correct |
3 ms |
896 KB |
Output is correct |
| 49 |
Correct |
3 ms |
1024 KB |
Output is correct |
| 50 |
Correct |
3 ms |
896 KB |
Output is correct |
| 51 |
Correct |
3 ms |
896 KB |
Output is correct |
| 52 |
Correct |
3 ms |
896 KB |
Output is correct |
| 53 |
Correct |
3 ms |
896 KB |
Output is correct |
| 54 |
Correct |
3 ms |
896 KB |
Output is correct |
| 55 |
Correct |
7 ms |
1784 KB |
Output is correct |
| 56 |
Correct |
25 ms |
5752 KB |
Output is correct |
| 57 |
Correct |
46 ms |
9340 KB |
Output is correct |
| 58 |
Correct |
68 ms |
12120 KB |
Output is correct |
| 59 |
Correct |
78 ms |
15600 KB |
Output is correct |
| 60 |
Correct |
105 ms |
19468 KB |
Output is correct |
| 61 |
Correct |
117 ms |
22640 KB |
Output is correct |
| 62 |
Correct |
133 ms |
24556 KB |
Output is correct |
| 63 |
Correct |
154 ms |
29156 KB |
Output is correct |
| 64 |
Correct |
164 ms |
30448 KB |
Output is correct |
| 65 |
Correct |
93 ms |
21624 KB |
Output is correct |
| 66 |
Correct |
86 ms |
21624 KB |
Output is correct |
| 67 |
Correct |
86 ms |
21752 KB |
Output is correct |
| 68 |
Correct |
150 ms |
28468 KB |
Output is correct |
| 69 |
Correct |
161 ms |
29164 KB |
Output is correct |
| 70 |
Correct |
172 ms |
29036 KB |
Output is correct |
| 71 |
Correct |
216 ms |
43908 KB |
Output is correct |
| 72 |
Correct |
204 ms |
44136 KB |
Output is correct |
| 73 |
Correct |
175 ms |
40460 KB |
Output is correct |
| 74 |
Correct |
181 ms |
40904 KB |
Output is correct |
| 75 |
Correct |
181 ms |
39276 KB |
Output is correct |
| 76 |
Correct |
188 ms |
39480 KB |
Output is correct |
| 77 |
Correct |
193 ms |
38576 KB |
Output is correct |
| 78 |
Correct |
195 ms |
38120 KB |
Output is correct |
| 79 |
Correct |
172 ms |
36768 KB |
Output is correct |
