#include <cmath>
#include <functional>
#include <fstream>
#include <iostream>
#include <vector>
#include <algorithm>
#include <string>
#include <set>
#include <map>
#include <list>
#include <time.h>
#include <math.h>
#include <random>
#include <deque>
#include <cassert>
#include <queue>
#include <unordered_map>
#include <unordered_set>
#include <iomanip>
#include <bitset>
#include <sstream>
#include <stack>
#include <chrono>
#include <cstring>
#include <numeric>
using namespace std;
typedef long long ll;
const int N = 200000 + 7;
const ll INF = (ll)1e18 + 7;
int n;
int par[N];
int h[N];
int c[N];
vector<int> g[N];
ll sumc[N];
ll dp[N];
ll compute(int a, int dim) {
ll sol = c[a];
for (auto& b : g[a]) {
sol += compute(b, dim);
}
if (h[a] >= dim) {
sol = min(sol, dp[a]);
}
return sol;
}
void build1(int a) {
sumc[a] = c[a];
dp[a] = 0;
for (auto& b : g[a]) {
build1(b);
sumc[a] += sumc[b];
dp[a] += compute(b, h[a]);
}
}
signed main() {
#ifdef ONPC
FILE* stream;
freopen_s(&stream, "input.txt", "r", stdin);
#else
ios::sync_with_stdio(false);
cin.tie(0); cout.tie(0);
#endif
cin >> n;
for (int i = 1; i <= n; i++) {
cin >> par[i] >> h[i] >> c[i];
}
assert(par[1] == 1);
for (int i = 2; i <= n; i++) {
assert(1 <= par[i] && par[i] <= i - 1);
g[par[i]].push_back(i);
}
build1(1);
cout << compute(1, 0) << "\n";
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
5028 KB |
Output is correct |
3 |
Correct |
4 ms |
5028 KB |
Output is correct |
4 |
Correct |
4 ms |
4948 KB |
Output is correct |
5 |
Correct |
6 ms |
5340 KB |
Output is correct |
6 |
Correct |
7 ms |
5320 KB |
Output is correct |
7 |
Correct |
7 ms |
5388 KB |
Output is correct |
8 |
Correct |
5 ms |
5332 KB |
Output is correct |
9 |
Correct |
5 ms |
5332 KB |
Output is correct |
10 |
Correct |
6 ms |
5332 KB |
Output is correct |
11 |
Correct |
6 ms |
5332 KB |
Output is correct |
12 |
Correct |
112 ms |
5752 KB |
Output is correct |
13 |
Correct |
113 ms |
5684 KB |
Output is correct |
14 |
Correct |
66 ms |
5564 KB |
Output is correct |
15 |
Correct |
58 ms |
5596 KB |
Output is correct |
16 |
Correct |
6 ms |
5332 KB |
Output is correct |
17 |
Correct |
5 ms |
5304 KB |
Output is correct |
18 |
Correct |
5 ms |
5296 KB |
Output is correct |
19 |
Correct |
54 ms |
5512 KB |
Output is correct |
20 |
Correct |
51 ms |
5644 KB |
Output is correct |
21 |
Correct |
51 ms |
5460 KB |
Output is correct |
22 |
Correct |
4 ms |
5332 KB |
Output is correct |
23 |
Correct |
5 ms |
5332 KB |
Output is correct |
24 |
Correct |
73 ms |
5556 KB |
Output is correct |
25 |
Correct |
71 ms |
5460 KB |
Output is correct |
26 |
Correct |
83 ms |
5756 KB |
Output is correct |
27 |
Correct |
37 ms |
5460 KB |
Output is correct |
28 |
Correct |
70 ms |
5460 KB |
Output is correct |
29 |
Correct |
91 ms |
5632 KB |
Output is correct |
30 |
Correct |
48 ms |
5548 KB |
Output is correct |
31 |
Correct |
50 ms |
5588 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
5028 KB |
Output is correct |
3 |
Correct |
4 ms |
5028 KB |
Output is correct |
4 |
Correct |
4 ms |
4948 KB |
Output is correct |
5 |
Correct |
6 ms |
5340 KB |
Output is correct |
6 |
Correct |
7 ms |
5320 KB |
Output is correct |
7 |
Correct |
7 ms |
5388 KB |
Output is correct |
8 |
Correct |
5 ms |
5332 KB |
Output is correct |
9 |
Correct |
5 ms |
5332 KB |
Output is correct |
10 |
Correct |
6 ms |
5332 KB |
Output is correct |
11 |
Correct |
6 ms |
5332 KB |
Output is correct |
12 |
Correct |
112 ms |
5752 KB |
Output is correct |
13 |
Correct |
113 ms |
5684 KB |
Output is correct |
14 |
Correct |
66 ms |
5564 KB |
Output is correct |
15 |
Correct |
58 ms |
5596 KB |
Output is correct |
16 |
Correct |
6 ms |
5332 KB |
Output is correct |
17 |
Correct |
5 ms |
5304 KB |
Output is correct |
18 |
Correct |
5 ms |
5296 KB |
Output is correct |
19 |
Correct |
54 ms |
5512 KB |
Output is correct |
20 |
Correct |
51 ms |
5644 KB |
Output is correct |
21 |
Correct |
51 ms |
5460 KB |
Output is correct |
22 |
Correct |
4 ms |
5332 KB |
Output is correct |
23 |
Correct |
5 ms |
5332 KB |
Output is correct |
24 |
Correct |
73 ms |
5556 KB |
Output is correct |
25 |
Correct |
71 ms |
5460 KB |
Output is correct |
26 |
Correct |
83 ms |
5756 KB |
Output is correct |
27 |
Correct |
37 ms |
5460 KB |
Output is correct |
28 |
Correct |
70 ms |
5460 KB |
Output is correct |
29 |
Correct |
91 ms |
5632 KB |
Output is correct |
30 |
Correct |
48 ms |
5548 KB |
Output is correct |
31 |
Correct |
50 ms |
5588 KB |
Output is correct |
32 |
Correct |
6 ms |
5332 KB |
Output is correct |
33 |
Correct |
216 ms |
18752 KB |
Output is correct |
34 |
Correct |
208 ms |
18752 KB |
Output is correct |
35 |
Correct |
192 ms |
18636 KB |
Output is correct |
36 |
Correct |
207 ms |
18744 KB |
Output is correct |
37 |
Correct |
214 ms |
18772 KB |
Output is correct |
38 |
Correct |
184 ms |
18616 KB |
Output is correct |
39 |
Execution timed out |
2065 ms |
34376 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
3 ms |
5028 KB |
Output is correct |
3 |
Correct |
4 ms |
5028 KB |
Output is correct |
4 |
Correct |
4 ms |
4948 KB |
Output is correct |
5 |
Correct |
6 ms |
5340 KB |
Output is correct |
6 |
Correct |
7 ms |
5320 KB |
Output is correct |
7 |
Correct |
7 ms |
5388 KB |
Output is correct |
8 |
Correct |
5 ms |
5332 KB |
Output is correct |
9 |
Correct |
5 ms |
5332 KB |
Output is correct |
10 |
Correct |
6 ms |
5332 KB |
Output is correct |
11 |
Correct |
6 ms |
5332 KB |
Output is correct |
12 |
Correct |
112 ms |
5752 KB |
Output is correct |
13 |
Correct |
113 ms |
5684 KB |
Output is correct |
14 |
Correct |
66 ms |
5564 KB |
Output is correct |
15 |
Correct |
58 ms |
5596 KB |
Output is correct |
16 |
Correct |
6 ms |
5332 KB |
Output is correct |
17 |
Correct |
5 ms |
5304 KB |
Output is correct |
18 |
Correct |
5 ms |
5296 KB |
Output is correct |
19 |
Correct |
54 ms |
5512 KB |
Output is correct |
20 |
Correct |
51 ms |
5644 KB |
Output is correct |
21 |
Correct |
51 ms |
5460 KB |
Output is correct |
22 |
Correct |
4 ms |
5332 KB |
Output is correct |
23 |
Correct |
5 ms |
5332 KB |
Output is correct |
24 |
Correct |
73 ms |
5556 KB |
Output is correct |
25 |
Correct |
71 ms |
5460 KB |
Output is correct |
26 |
Correct |
83 ms |
5756 KB |
Output is correct |
27 |
Correct |
37 ms |
5460 KB |
Output is correct |
28 |
Correct |
70 ms |
5460 KB |
Output is correct |
29 |
Correct |
91 ms |
5632 KB |
Output is correct |
30 |
Correct |
48 ms |
5548 KB |
Output is correct |
31 |
Correct |
50 ms |
5588 KB |
Output is correct |
32 |
Correct |
6 ms |
5332 KB |
Output is correct |
33 |
Correct |
216 ms |
18752 KB |
Output is correct |
34 |
Correct |
208 ms |
18752 KB |
Output is correct |
35 |
Correct |
192 ms |
18636 KB |
Output is correct |
36 |
Correct |
207 ms |
18744 KB |
Output is correct |
37 |
Correct |
214 ms |
18772 KB |
Output is correct |
38 |
Correct |
184 ms |
18616 KB |
Output is correct |
39 |
Execution timed out |
2065 ms |
34376 KB |
Time limit exceeded |
40 |
Halted |
0 ms |
0 KB |
- |