#include <bits/stdc++.h>
int main() {
std::ios_base::sync_with_stdio(false);
std::cin.tie(nullptr);
int N, M, K;
std::cin >> N >> M >> K;
std::vector<int> p(N);
for (int u = 1; u < N; ++u) {
std::cin >> p[u];
--p[u];
}
std::vector<int> d(N), w(N);
for (int j = 0; j < M; ++j) {
int v;
std::cin >> v;
--v;
std::cin >> d[v] >> w[v];
}
std::vector<std::map<int, int64_t>> s(N);
for (int u = N - 1; u > 0; --u) {
auto iter = s[u].insert({d[u], 0}).first;
iter->second += w[u];
++iter;
if (iter != s[u].end()) {
int64_t sum = -w[u];
while (iter != s[u].end() && iter->second + sum < 0) {
sum += iter->second;
iter = s[u].erase(iter);
}
if (iter != s[u].end()) {
iter->second += sum;
}
}
int v = p[u];
if (s[v].size() < s[u].size()) {
std::swap(s[v], s[u]);
}
for (auto [d, w] : s[u]) {
s[v][d] += w;
}
}
int64_t maxpref = 0, pref = 0;
for (auto [d, w] : s[0]) {
pref += w;
maxpref = std::max(maxpref, pref);
}
std::cout << maxpref << '\n';
exit(0);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
288 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
0 ms |
312 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
308 KB |
Output is correct |
9 |
Correct |
0 ms |
308 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
45 ms |
18628 KB |
Output is correct |
2 |
Correct |
26 ms |
9272 KB |
Output is correct |
3 |
Correct |
122 ms |
37836 KB |
Output is correct |
4 |
Correct |
63 ms |
16084 KB |
Output is correct |
5 |
Correct |
87 ms |
20480 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
332 KB |
Output is correct |
2 |
Correct |
0 ms |
332 KB |
Output is correct |
3 |
Correct |
1 ms |
308 KB |
Output is correct |
4 |
Correct |
33 ms |
8100 KB |
Output is correct |
5 |
Correct |
52 ms |
12108 KB |
Output is correct |
6 |
Correct |
43 ms |
8176 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
41 ms |
10712 KB |
Output is correct |
2 |
Correct |
38 ms |
11892 KB |
Output is correct |
3 |
Correct |
34 ms |
9664 KB |
Output is correct |
4 |
Correct |
32 ms |
14148 KB |
Output is correct |
5 |
Correct |
35 ms |
8252 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
288 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
0 ms |
312 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
308 KB |
Output is correct |
9 |
Correct |
0 ms |
308 KB |
Output is correct |
10 |
Correct |
54 ms |
17240 KB |
Output is correct |
11 |
Correct |
46 ms |
15532 KB |
Output is correct |
12 |
Correct |
32 ms |
9128 KB |
Output is correct |
13 |
Correct |
32 ms |
13556 KB |
Output is correct |
14 |
Correct |
28 ms |
7684 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
2252 KB |
Output is correct |
2 |
Correct |
24 ms |
10028 KB |
Output is correct |
3 |
Correct |
17 ms |
10056 KB |
Output is correct |
4 |
Correct |
24 ms |
10128 KB |
Output is correct |
5 |
Correct |
14 ms |
12736 KB |
Output is correct |
6 |
Correct |
17 ms |
10560 KB |
Output is correct |
7 |
Correct |
15 ms |
8004 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
288 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
0 ms |
312 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
308 KB |
Output is correct |
9 |
Correct |
0 ms |
308 KB |
Output is correct |
10 |
Correct |
0 ms |
332 KB |
Output is correct |
11 |
Correct |
0 ms |
332 KB |
Output is correct |
12 |
Correct |
1 ms |
308 KB |
Output is correct |
13 |
Correct |
33 ms |
8100 KB |
Output is correct |
14 |
Correct |
52 ms |
12108 KB |
Output is correct |
15 |
Correct |
43 ms |
8176 KB |
Output is correct |
16 |
Correct |
54 ms |
17240 KB |
Output is correct |
17 |
Correct |
46 ms |
15532 KB |
Output is correct |
18 |
Correct |
32 ms |
9128 KB |
Output is correct |
19 |
Correct |
32 ms |
13556 KB |
Output is correct |
20 |
Correct |
28 ms |
7684 KB |
Output is correct |
21 |
Correct |
16 ms |
6092 KB |
Output is correct |
22 |
Correct |
60 ms |
21180 KB |
Output is correct |
23 |
Correct |
67 ms |
26172 KB |
Output is correct |
24 |
Correct |
114 ms |
39388 KB |
Output is correct |
25 |
Correct |
69 ms |
17448 KB |
Output is correct |
26 |
Correct |
76 ms |
18752 KB |
Output is correct |
27 |
Correct |
55 ms |
11840 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
0 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
204 KB |
Output is correct |
3 |
Correct |
0 ms |
288 KB |
Output is correct |
4 |
Correct |
1 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
0 ms |
312 KB |
Output is correct |
7 |
Correct |
0 ms |
204 KB |
Output is correct |
8 |
Correct |
0 ms |
308 KB |
Output is correct |
9 |
Correct |
0 ms |
308 KB |
Output is correct |
10 |
Correct |
45 ms |
18628 KB |
Output is correct |
11 |
Correct |
26 ms |
9272 KB |
Output is correct |
12 |
Correct |
122 ms |
37836 KB |
Output is correct |
13 |
Correct |
63 ms |
16084 KB |
Output is correct |
14 |
Correct |
87 ms |
20480 KB |
Output is correct |
15 |
Correct |
0 ms |
332 KB |
Output is correct |
16 |
Correct |
0 ms |
332 KB |
Output is correct |
17 |
Correct |
1 ms |
308 KB |
Output is correct |
18 |
Correct |
33 ms |
8100 KB |
Output is correct |
19 |
Correct |
52 ms |
12108 KB |
Output is correct |
20 |
Correct |
43 ms |
8176 KB |
Output is correct |
21 |
Correct |
41 ms |
10712 KB |
Output is correct |
22 |
Correct |
38 ms |
11892 KB |
Output is correct |
23 |
Correct |
34 ms |
9664 KB |
Output is correct |
24 |
Correct |
32 ms |
14148 KB |
Output is correct |
25 |
Correct |
35 ms |
8252 KB |
Output is correct |
26 |
Correct |
54 ms |
17240 KB |
Output is correct |
27 |
Correct |
46 ms |
15532 KB |
Output is correct |
28 |
Correct |
32 ms |
9128 KB |
Output is correct |
29 |
Correct |
32 ms |
13556 KB |
Output is correct |
30 |
Correct |
28 ms |
7684 KB |
Output is correct |
31 |
Correct |
4 ms |
2252 KB |
Output is correct |
32 |
Correct |
24 ms |
10028 KB |
Output is correct |
33 |
Correct |
17 ms |
10056 KB |
Output is correct |
34 |
Correct |
24 ms |
10128 KB |
Output is correct |
35 |
Correct |
14 ms |
12736 KB |
Output is correct |
36 |
Correct |
17 ms |
10560 KB |
Output is correct |
37 |
Correct |
15 ms |
8004 KB |
Output is correct |
38 |
Correct |
16 ms |
6092 KB |
Output is correct |
39 |
Correct |
60 ms |
21180 KB |
Output is correct |
40 |
Correct |
67 ms |
26172 KB |
Output is correct |
41 |
Correct |
114 ms |
39388 KB |
Output is correct |
42 |
Correct |
69 ms |
17448 KB |
Output is correct |
43 |
Correct |
76 ms |
18752 KB |
Output is correct |
44 |
Correct |
55 ms |
11840 KB |
Output is correct |
45 |
Correct |
16 ms |
5692 KB |
Output is correct |
46 |
Correct |
59 ms |
20520 KB |
Output is correct |
47 |
Correct |
75 ms |
24620 KB |
Output is correct |
48 |
Correct |
100 ms |
35328 KB |
Output is correct |
49 |
Correct |
80 ms |
18168 KB |
Output is correct |
50 |
Correct |
83 ms |
18800 KB |
Output is correct |
51 |
Correct |
55 ms |
11844 KB |
Output is correct |