#include <bits/stdc++.h>
using namespace std;
const int DIM = 300005;
struct Dp {
long long a, b;
priority_queue<long long> *points;
};
Dp dp[DIM];
int parent[DIM], length[DIM];
Dp merge(Dp str1, Dp str2) {
Dp ans;
ans.a = str1.a + str2.a;
ans.b = str1.b + str2.b;
if (str1.points -> size() > str2.points -> size()) {
ans.points = str1.points;
while (str2.points -> size()) {
ans.points -> push(str2.points -> top());
str2.points -> pop();
}
} else {
ans.points = str2.points;
while (str1.points -> size()) {
ans.points -> push(str1.points -> top());
str1.points -> pop();
}
}
return ans;
}
int main(void) {
// freopen("fireworks.in", "r", stdin);
// freopen("fireworks.out", "w", stdout);
int n, m;
cin >> n >> m;
for (int i = 1; i <= n + m; ++i) {
if (i > 1)
cin >> parent[i] >> length[i];
dp[i].points = new priority_queue<long long>();
}
for (int i = n + m; i > 1; --i) {
if (i > n) {
dp[i].a = 1; dp[i].b = -length[i];
dp[i].points -> push(length[i]);
dp[i].points -> push(length[i]);
} else {
while (dp[i].a > 1) {
long long x = dp[i].points -> top();
dp[i].a--; dp[i].b += x;
dp[i].points -> pop();
}
long long x = dp[i].points -> top();
dp[i].points -> pop();
long long y = dp[i].points -> top();
dp[i].points -> pop();
dp[i].points -> push(x + length[i]);
dp[i].points -> push(y + length[i]);
dp[i].b -= length[i];
}
dp[parent[i]] = merge(dp[parent[i]], dp[i]);
}
while (dp[1].a > 0) {
long long x = dp[1].points -> top();
dp[1].a--; dp[1].b += x;
dp[1].points -> pop();
}
cout << dp[1].b << endl;
return 0;
}
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
2 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
384 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
3 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
3 ms |
384 KB |
Output is correct |
| 11 |
Correct |
2 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
3 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
384 KB |
Output is correct |
| 17 |
Correct |
2 ms |
384 KB |
Output is correct |
| 18 |
Correct |
3 ms |
384 KB |
Output is correct |
| 19 |
Correct |
2 ms |
384 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
2 ms |
384 KB |
Output is correct |
| 11 |
Correct |
2 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
384 KB |
Output is correct |
| 17 |
Correct |
3 ms |
384 KB |
Output is correct |
| 18 |
Correct |
2 ms |
384 KB |
Output is correct |
| 19 |
Correct |
2 ms |
384 KB |
Output is correct |
| 20 |
Correct |
3 ms |
384 KB |
Output is correct |
| 21 |
Correct |
2 ms |
384 KB |
Output is correct |
| 22 |
Correct |
2 ms |
384 KB |
Output is correct |
| 23 |
Correct |
2 ms |
384 KB |
Output is correct |
| 24 |
Correct |
3 ms |
384 KB |
Output is correct |
| 25 |
Correct |
2 ms |
384 KB |
Output is correct |
| 26 |
Correct |
2 ms |
384 KB |
Output is correct |
| 27 |
Correct |
2 ms |
384 KB |
Output is correct |
| 28 |
Correct |
3 ms |
384 KB |
Output is correct |
| 29 |
Correct |
2 ms |
384 KB |
Output is correct |
| 30 |
Correct |
3 ms |
256 KB |
Output is correct |
| 31 |
Correct |
3 ms |
512 KB |
Output is correct |
| 32 |
Correct |
4 ms |
512 KB |
Output is correct |
| 33 |
Correct |
5 ms |
640 KB |
Output is correct |
| 34 |
Correct |
5 ms |
640 KB |
Output is correct |
| 35 |
Correct |
6 ms |
768 KB |
Output is correct |
| 36 |
Correct |
6 ms |
896 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 38 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 39 |
Correct |
9 ms |
896 KB |
Output is correct |
| 40 |
Correct |
6 ms |
768 KB |
Output is correct |
| 41 |
Correct |
11 ms |
768 KB |
Output is correct |
| 42 |
Correct |
7 ms |
896 KB |
Output is correct |
| 43 |
Correct |
7 ms |
896 KB |
Output is correct |
| 44 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 45 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 46 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 47 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 48 |
Correct |
6 ms |
1024 KB |
Output is correct |
| 49 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 50 |
Correct |
8 ms |
1024 KB |
Output is correct |
| 51 |
Correct |
6 ms |
896 KB |
Output is correct |
| 52 |
Correct |
6 ms |
1024 KB |
Output is correct |
| 53 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 54 |
Correct |
6 ms |
1020 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
2 ms |
512 KB |
Output is correct |
| 2 |
Correct |
2 ms |
384 KB |
Output is correct |
| 3 |
Correct |
2 ms |
384 KB |
Output is correct |
| 4 |
Correct |
2 ms |
384 KB |
Output is correct |
| 5 |
Correct |
2 ms |
384 KB |
Output is correct |
| 6 |
Correct |
2 ms |
384 KB |
Output is correct |
| 7 |
Correct |
2 ms |
384 KB |
Output is correct |
| 8 |
Correct |
2 ms |
384 KB |
Output is correct |
| 9 |
Correct |
2 ms |
384 KB |
Output is correct |
| 10 |
Correct |
2 ms |
384 KB |
Output is correct |
| 11 |
Correct |
2 ms |
384 KB |
Output is correct |
| 12 |
Correct |
2 ms |
384 KB |
Output is correct |
| 13 |
Correct |
2 ms |
384 KB |
Output is correct |
| 14 |
Correct |
2 ms |
384 KB |
Output is correct |
| 15 |
Correct |
2 ms |
384 KB |
Output is correct |
| 16 |
Correct |
2 ms |
384 KB |
Output is correct |
| 17 |
Correct |
3 ms |
384 KB |
Output is correct |
| 18 |
Correct |
2 ms |
384 KB |
Output is correct |
| 19 |
Correct |
2 ms |
384 KB |
Output is correct |
| 20 |
Correct |
3 ms |
384 KB |
Output is correct |
| 21 |
Correct |
2 ms |
384 KB |
Output is correct |
| 22 |
Correct |
2 ms |
384 KB |
Output is correct |
| 23 |
Correct |
2 ms |
384 KB |
Output is correct |
| 24 |
Correct |
3 ms |
384 KB |
Output is correct |
| 25 |
Correct |
2 ms |
384 KB |
Output is correct |
| 26 |
Correct |
2 ms |
384 KB |
Output is correct |
| 27 |
Correct |
2 ms |
384 KB |
Output is correct |
| 28 |
Correct |
3 ms |
384 KB |
Output is correct |
| 29 |
Correct |
2 ms |
384 KB |
Output is correct |
| 30 |
Correct |
3 ms |
256 KB |
Output is correct |
| 31 |
Correct |
3 ms |
512 KB |
Output is correct |
| 32 |
Correct |
4 ms |
512 KB |
Output is correct |
| 33 |
Correct |
5 ms |
640 KB |
Output is correct |
| 34 |
Correct |
5 ms |
640 KB |
Output is correct |
| 35 |
Correct |
6 ms |
768 KB |
Output is correct |
| 36 |
Correct |
6 ms |
896 KB |
Output is correct |
| 37 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 38 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 39 |
Correct |
9 ms |
896 KB |
Output is correct |
| 40 |
Correct |
6 ms |
768 KB |
Output is correct |
| 41 |
Correct |
11 ms |
768 KB |
Output is correct |
| 42 |
Correct |
7 ms |
896 KB |
Output is correct |
| 43 |
Correct |
7 ms |
896 KB |
Output is correct |
| 44 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 45 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 46 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 47 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 48 |
Correct |
6 ms |
1024 KB |
Output is correct |
| 49 |
Correct |
7 ms |
1152 KB |
Output is correct |
| 50 |
Correct |
8 ms |
1024 KB |
Output is correct |
| 51 |
Correct |
6 ms |
896 KB |
Output is correct |
| 52 |
Correct |
6 ms |
1024 KB |
Output is correct |
| 53 |
Correct |
7 ms |
1024 KB |
Output is correct |
| 54 |
Correct |
6 ms |
1020 KB |
Output is correct |
| 55 |
Correct |
15 ms |
2088 KB |
Output is correct |
| 56 |
Correct |
52 ms |
6896 KB |
Output is correct |
| 57 |
Correct |
89 ms |
11388 KB |
Output is correct |
| 58 |
Correct |
116 ms |
14424 KB |
Output is correct |
| 59 |
Correct |
159 ms |
18940 KB |
Output is correct |
| 60 |
Correct |
199 ms |
23516 KB |
Output is correct |
| 61 |
Correct |
231 ms |
26864 KB |
Output is correct |
| 62 |
Correct |
263 ms |
29864 KB |
Output is correct |
| 63 |
Correct |
314 ms |
35300 KB |
Output is correct |
| 64 |
Correct |
364 ms |
36972 KB |
Output is correct |
| 65 |
Correct |
244 ms |
28792 KB |
Output is correct |
| 66 |
Correct |
244 ms |
28792 KB |
Output is correct |
| 67 |
Correct |
252 ms |
28740 KB |
Output is correct |
| 68 |
Correct |
294 ms |
35404 KB |
Output is correct |
| 69 |
Correct |
312 ms |
36080 KB |
Output is correct |
| 70 |
Correct |
314 ms |
36204 KB |
Output is correct |
| 71 |
Correct |
333 ms |
50988 KB |
Output is correct |
| 72 |
Correct |
340 ms |
51180 KB |
Output is correct |
| 73 |
Correct |
306 ms |
47356 KB |
Output is correct |
| 74 |
Correct |
334 ms |
48100 KB |
Output is correct |
| 75 |
Correct |
302 ms |
46324 KB |
Output is correct |
| 76 |
Correct |
297 ms |
46308 KB |
Output is correct |
| 77 |
Correct |
318 ms |
45456 KB |
Output is correct |
| 78 |
Correct |
314 ms |
44972 KB |
Output is correct |
| 79 |
Correct |
311 ms |
43692 KB |
Output is correct |
