#include <bits/stdc++.h>
using namespace std;
#define int long long
vector<int> adj[300005];
int a[300005];
priority_queue<pair<int, int>, vector<pair<int, int>>, greater<pair<int, int>>> v[300005];
void dfs(int x) {
for(int i : adj[x]) {
dfs(i);
if(v[i].size() > v[x].size()) swap(v[i], v[x]);
while(v[i].size()) {
v[x].push(v[i].top());
v[i].pop();
}
}
if(a[x] >= 0) v[x].push({0, a[x]});
else {
pair<int, int> cur = {-a[x], a[x]};
while(v[x].size() && cur.second < 0) {
pair<int, int> tmp = v[x].top();
v[x].pop();
cur.first = max(cur.first, tmp.first-cur.second);
cur.second += tmp.second;
}
if(cur.second >= 0) v[x].push(cur);
}
}
int32_t main() {
ios_base::sync_with_stdio(0);
cin.tie(0); cout.tie(0);
int n, s, x, ans = 0;
cin >> n >> s;
a[0] = s;
for(int i = 1; i <= n; i++) {
cin >> a[i] >> x;
adj[x].push_back(i);
}
dfs(0);
while(v[0].size() && v[0].top().first <= ans) {
ans += v[0].top().second;
v[0].pop();
}
cout << ans-s;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
172 ms |
49124 KB |
Output is correct |
2 |
Correct |
135 ms |
39868 KB |
Output is correct |
3 |
Correct |
105 ms |
35576 KB |
Output is correct |
4 |
Correct |
88 ms |
41376 KB |
Output is correct |
5 |
Correct |
85 ms |
49928 KB |
Output is correct |
6 |
Correct |
97 ms |
37324 KB |
Output is correct |
7 |
Correct |
159 ms |
44224 KB |
Output is correct |
8 |
Correct |
120 ms |
34808 KB |
Output is correct |
9 |
Correct |
79 ms |
45004 KB |
Output is correct |
10 |
Correct |
81 ms |
49500 KB |
Output is correct |
11 |
Correct |
194 ms |
50504 KB |
Output is correct |
12 |
Correct |
141 ms |
42948 KB |
Output is correct |
13 |
Correct |
174 ms |
47648 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19032 KB |
Output is correct |
2 |
Correct |
3 ms |
19036 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19288 KB |
Output is correct |
5 |
Correct |
4 ms |
19464 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
4 ms |
19292 KB |
Output is correct |
8 |
Correct |
4 ms |
19292 KB |
Output is correct |
9 |
Correct |
3 ms |
19292 KB |
Output is correct |
10 |
Correct |
3 ms |
19292 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
4 ms |
19288 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19292 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
4 ms |
19216 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19288 KB |
Output is correct |
19 |
Correct |
3 ms |
19292 KB |
Output is correct |
20 |
Correct |
3 ms |
19292 KB |
Output is correct |
21 |
Correct |
3 ms |
19292 KB |
Output is correct |
22 |
Correct |
3 ms |
19292 KB |
Output is correct |
23 |
Correct |
3 ms |
19548 KB |
Output is correct |
24 |
Correct |
3 ms |
19292 KB |
Output is correct |
25 |
Correct |
3 ms |
19292 KB |
Output is correct |
26 |
Correct |
3 ms |
19292 KB |
Output is correct |
27 |
Correct |
3 ms |
19292 KB |
Output is correct |
28 |
Correct |
4 ms |
19212 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19032 KB |
Output is correct |
2 |
Correct |
3 ms |
19036 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19288 KB |
Output is correct |
5 |
Correct |
4 ms |
19464 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
4 ms |
19292 KB |
Output is correct |
8 |
Correct |
4 ms |
19292 KB |
Output is correct |
9 |
Correct |
3 ms |
19292 KB |
Output is correct |
10 |
Correct |
3 ms |
19292 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
4 ms |
19288 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19292 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
4 ms |
19216 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19288 KB |
Output is correct |
19 |
Correct |
3 ms |
19292 KB |
Output is correct |
20 |
Correct |
3 ms |
19292 KB |
Output is correct |
21 |
Correct |
3 ms |
19292 KB |
Output is correct |
22 |
Correct |
3 ms |
19292 KB |
Output is correct |
23 |
Correct |
3 ms |
19548 KB |
Output is correct |
24 |
Correct |
3 ms |
19292 KB |
Output is correct |
25 |
Correct |
3 ms |
19292 KB |
Output is correct |
26 |
Correct |
3 ms |
19292 KB |
Output is correct |
27 |
Correct |
3 ms |
19292 KB |
Output is correct |
28 |
Correct |
4 ms |
19212 KB |
Output is correct |
29 |
Correct |
77 ms |
36288 KB |
Output is correct |
30 |
Correct |
74 ms |
35772 KB |
Output is correct |
31 |
Correct |
66 ms |
34752 KB |
Output is correct |
32 |
Correct |
90 ms |
64356 KB |
Output is correct |
33 |
Correct |
90 ms |
52224 KB |
Output is correct |
34 |
Correct |
80 ms |
44100 KB |
Output is correct |
35 |
Correct |
37 ms |
26452 KB |
Output is correct |
36 |
Correct |
79 ms |
37832 KB |
Output is correct |
37 |
Correct |
83 ms |
36428 KB |
Output is correct |
38 |
Correct |
88 ms |
63436 KB |
Output is correct |
39 |
Correct |
87 ms |
50760 KB |
Output is correct |
40 |
Correct |
84 ms |
42348 KB |
Output is correct |
41 |
Correct |
72 ms |
33404 KB |
Output is correct |
42 |
Correct |
34 ms |
30664 KB |
Output is correct |
43 |
Correct |
86 ms |
44228 KB |
Output is correct |
44 |
Correct |
93 ms |
64976 KB |
Output is correct |
45 |
Correct |
105 ms |
50764 KB |
Output is correct |
46 |
Correct |
86 ms |
43888 KB |
Output is correct |
47 |
Correct |
78 ms |
33192 KB |
Output is correct |
48 |
Correct |
74 ms |
35008 KB |
Output is correct |
49 |
Correct |
83 ms |
36544 KB |
Output is correct |
50 |
Correct |
91 ms |
65480 KB |
Output is correct |
51 |
Correct |
81 ms |
43716 KB |
Output is correct |
52 |
Correct |
89 ms |
41172 KB |
Output is correct |
53 |
Correct |
56 ms |
36572 KB |
Output is correct |
54 |
Correct |
74 ms |
35336 KB |
Output is correct |
55 |
Correct |
77 ms |
37328 KB |
Output is correct |
56 |
Correct |
91 ms |
66916 KB |
Output is correct |
57 |
Correct |
96 ms |
51452 KB |
Output is correct |
58 |
Correct |
73 ms |
42200 KB |
Output is correct |
59 |
Correct |
83 ms |
38592 KB |
Output is correct |
60 |
Correct |
60 ms |
34748 KB |
Output is correct |
61 |
Correct |
83 ms |
43488 KB |
Output is correct |
62 |
Correct |
87 ms |
42052 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19032 KB |
Output is correct |
2 |
Correct |
3 ms |
19036 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19288 KB |
Output is correct |
5 |
Correct |
4 ms |
19464 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
4 ms |
19292 KB |
Output is correct |
8 |
Correct |
4 ms |
19292 KB |
Output is correct |
9 |
Correct |
3 ms |
19292 KB |
Output is correct |
10 |
Correct |
3 ms |
19292 KB |
Output is correct |
11 |
Correct |
3 ms |
19548 KB |
Output is correct |
12 |
Correct |
4 ms |
19288 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19292 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
4 ms |
19216 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19288 KB |
Output is correct |
19 |
Correct |
3 ms |
19292 KB |
Output is correct |
20 |
Correct |
3 ms |
19292 KB |
Output is correct |
21 |
Correct |
3 ms |
19292 KB |
Output is correct |
22 |
Correct |
3 ms |
19292 KB |
Output is correct |
23 |
Correct |
3 ms |
19548 KB |
Output is correct |
24 |
Correct |
3 ms |
19292 KB |
Output is correct |
25 |
Correct |
3 ms |
19292 KB |
Output is correct |
26 |
Correct |
3 ms |
19292 KB |
Output is correct |
27 |
Correct |
3 ms |
19292 KB |
Output is correct |
28 |
Correct |
4 ms |
19212 KB |
Output is correct |
29 |
Correct |
3 ms |
19036 KB |
Output is correct |
30 |
Correct |
4 ms |
19388 KB |
Output is correct |
31 |
Correct |
4 ms |
19292 KB |
Output is correct |
32 |
Correct |
3 ms |
19292 KB |
Output is correct |
33 |
Correct |
4 ms |
19288 KB |
Output is correct |
34 |
Correct |
4 ms |
19292 KB |
Output is correct |
35 |
Correct |
3 ms |
19292 KB |
Output is correct |
36 |
Correct |
4 ms |
19404 KB |
Output is correct |
37 |
Correct |
3 ms |
19292 KB |
Output is correct |
38 |
Correct |
4 ms |
19292 KB |
Output is correct |
39 |
Correct |
3 ms |
19292 KB |
Output is correct |
40 |
Correct |
4 ms |
19292 KB |
Output is correct |
41 |
Incorrect |
3 ms |
19400 KB |
Output isn't correct |
42 |
Halted |
0 ms |
0 KB |
- |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
172 ms |
49124 KB |
Output is correct |
2 |
Correct |
135 ms |
39868 KB |
Output is correct |
3 |
Correct |
105 ms |
35576 KB |
Output is correct |
4 |
Correct |
88 ms |
41376 KB |
Output is correct |
5 |
Correct |
85 ms |
49928 KB |
Output is correct |
6 |
Correct |
97 ms |
37324 KB |
Output is correct |
7 |
Correct |
159 ms |
44224 KB |
Output is correct |
8 |
Correct |
120 ms |
34808 KB |
Output is correct |
9 |
Correct |
79 ms |
45004 KB |
Output is correct |
10 |
Correct |
81 ms |
49500 KB |
Output is correct |
11 |
Correct |
194 ms |
50504 KB |
Output is correct |
12 |
Correct |
141 ms |
42948 KB |
Output is correct |
13 |
Correct |
174 ms |
47648 KB |
Output is correct |
14 |
Correct |
3 ms |
19032 KB |
Output is correct |
15 |
Correct |
3 ms |
19036 KB |
Output is correct |
16 |
Correct |
3 ms |
19036 KB |
Output is correct |
17 |
Correct |
3 ms |
19288 KB |
Output is correct |
18 |
Correct |
4 ms |
19464 KB |
Output is correct |
19 |
Correct |
3 ms |
19292 KB |
Output is correct |
20 |
Correct |
4 ms |
19292 KB |
Output is correct |
21 |
Correct |
4 ms |
19292 KB |
Output is correct |
22 |
Correct |
3 ms |
19292 KB |
Output is correct |
23 |
Correct |
3 ms |
19292 KB |
Output is correct |
24 |
Correct |
3 ms |
19548 KB |
Output is correct |
25 |
Correct |
4 ms |
19288 KB |
Output is correct |
26 |
Correct |
4 ms |
19292 KB |
Output is correct |
27 |
Correct |
3 ms |
19292 KB |
Output is correct |
28 |
Correct |
3 ms |
19292 KB |
Output is correct |
29 |
Correct |
4 ms |
19216 KB |
Output is correct |
30 |
Correct |
3 ms |
19548 KB |
Output is correct |
31 |
Correct |
3 ms |
19288 KB |
Output is correct |
32 |
Correct |
3 ms |
19292 KB |
Output is correct |
33 |
Correct |
3 ms |
19292 KB |
Output is correct |
34 |
Correct |
3 ms |
19292 KB |
Output is correct |
35 |
Correct |
3 ms |
19292 KB |
Output is correct |
36 |
Correct |
3 ms |
19548 KB |
Output is correct |
37 |
Correct |
3 ms |
19292 KB |
Output is correct |
38 |
Correct |
3 ms |
19292 KB |
Output is correct |
39 |
Correct |
3 ms |
19292 KB |
Output is correct |
40 |
Correct |
3 ms |
19292 KB |
Output is correct |
41 |
Correct |
4 ms |
19212 KB |
Output is correct |
42 |
Correct |
77 ms |
36288 KB |
Output is correct |
43 |
Correct |
74 ms |
35772 KB |
Output is correct |
44 |
Correct |
66 ms |
34752 KB |
Output is correct |
45 |
Correct |
90 ms |
64356 KB |
Output is correct |
46 |
Correct |
90 ms |
52224 KB |
Output is correct |
47 |
Correct |
80 ms |
44100 KB |
Output is correct |
48 |
Correct |
37 ms |
26452 KB |
Output is correct |
49 |
Correct |
79 ms |
37832 KB |
Output is correct |
50 |
Correct |
83 ms |
36428 KB |
Output is correct |
51 |
Correct |
88 ms |
63436 KB |
Output is correct |
52 |
Correct |
87 ms |
50760 KB |
Output is correct |
53 |
Correct |
84 ms |
42348 KB |
Output is correct |
54 |
Correct |
72 ms |
33404 KB |
Output is correct |
55 |
Correct |
34 ms |
30664 KB |
Output is correct |
56 |
Correct |
86 ms |
44228 KB |
Output is correct |
57 |
Correct |
93 ms |
64976 KB |
Output is correct |
58 |
Correct |
105 ms |
50764 KB |
Output is correct |
59 |
Correct |
86 ms |
43888 KB |
Output is correct |
60 |
Correct |
78 ms |
33192 KB |
Output is correct |
61 |
Correct |
74 ms |
35008 KB |
Output is correct |
62 |
Correct |
83 ms |
36544 KB |
Output is correct |
63 |
Correct |
91 ms |
65480 KB |
Output is correct |
64 |
Correct |
81 ms |
43716 KB |
Output is correct |
65 |
Correct |
89 ms |
41172 KB |
Output is correct |
66 |
Correct |
56 ms |
36572 KB |
Output is correct |
67 |
Correct |
74 ms |
35336 KB |
Output is correct |
68 |
Correct |
77 ms |
37328 KB |
Output is correct |
69 |
Correct |
91 ms |
66916 KB |
Output is correct |
70 |
Correct |
96 ms |
51452 KB |
Output is correct |
71 |
Correct |
73 ms |
42200 KB |
Output is correct |
72 |
Correct |
83 ms |
38592 KB |
Output is correct |
73 |
Correct |
60 ms |
34748 KB |
Output is correct |
74 |
Correct |
83 ms |
43488 KB |
Output is correct |
75 |
Correct |
87 ms |
42052 KB |
Output is correct |
76 |
Correct |
3 ms |
19036 KB |
Output is correct |
77 |
Correct |
4 ms |
19388 KB |
Output is correct |
78 |
Correct |
4 ms |
19292 KB |
Output is correct |
79 |
Correct |
3 ms |
19292 KB |
Output is correct |
80 |
Correct |
4 ms |
19288 KB |
Output is correct |
81 |
Correct |
4 ms |
19292 KB |
Output is correct |
82 |
Correct |
3 ms |
19292 KB |
Output is correct |
83 |
Correct |
4 ms |
19404 KB |
Output is correct |
84 |
Correct |
3 ms |
19292 KB |
Output is correct |
85 |
Correct |
4 ms |
19292 KB |
Output is correct |
86 |
Correct |
3 ms |
19292 KB |
Output is correct |
87 |
Correct |
4 ms |
19292 KB |
Output is correct |
88 |
Incorrect |
3 ms |
19400 KB |
Output isn't correct |
89 |
Halted |
0 ms |
0 KB |
- |