#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) {
while(v[x].size() && v[x].top().first <= cur.first) {
cur.second += v[x].top().second;
v[x].pop();
}
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 |
183 ms |
49012 KB |
Output is correct |
2 |
Correct |
139 ms |
40380 KB |
Output is correct |
3 |
Correct |
99 ms |
34812 KB |
Output is correct |
4 |
Correct |
104 ms |
42976 KB |
Output is correct |
5 |
Correct |
85 ms |
51208 KB |
Output is correct |
6 |
Correct |
90 ms |
37320 KB |
Output is correct |
7 |
Correct |
163 ms |
42944 KB |
Output is correct |
8 |
Correct |
95 ms |
35064 KB |
Output is correct |
9 |
Correct |
85 ms |
47108 KB |
Output is correct |
10 |
Correct |
87 ms |
51464 KB |
Output is correct |
11 |
Correct |
191 ms |
52552 KB |
Output is correct |
12 |
Correct |
149 ms |
42948 KB |
Output is correct |
13 |
Correct |
171 ms |
47836 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19036 KB |
Output is correct |
2 |
Correct |
3 ms |
19204 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19292 KB |
Output is correct |
5 |
Correct |
3 ms |
19380 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
3 ms |
19292 KB |
Output is correct |
8 |
Correct |
3 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 |
4 ms |
19528 KB |
Output is correct |
12 |
Correct |
4 ms |
19292 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19212 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
3 ms |
19292 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19292 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 |
4 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 |
19340 KB |
Output is correct |
28 |
Correct |
4 ms |
19288 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19036 KB |
Output is correct |
2 |
Correct |
3 ms |
19204 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19292 KB |
Output is correct |
5 |
Correct |
3 ms |
19380 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
3 ms |
19292 KB |
Output is correct |
8 |
Correct |
3 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 |
4 ms |
19528 KB |
Output is correct |
12 |
Correct |
4 ms |
19292 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19212 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
3 ms |
19292 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19292 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 |
4 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 |
19340 KB |
Output is correct |
28 |
Correct |
4 ms |
19288 KB |
Output is correct |
29 |
Correct |
83 ms |
37108 KB |
Output is correct |
30 |
Correct |
73 ms |
37572 KB |
Output is correct |
31 |
Correct |
67 ms |
34240 KB |
Output is correct |
32 |
Correct |
116 ms |
68968 KB |
Output is correct |
33 |
Correct |
83 ms |
53212 KB |
Output is correct |
34 |
Correct |
96 ms |
45632 KB |
Output is correct |
35 |
Correct |
39 ms |
26452 KB |
Output is correct |
36 |
Correct |
80 ms |
38816 KB |
Output is correct |
37 |
Correct |
87 ms |
37316 KB |
Output is correct |
38 |
Correct |
96 ms |
68296 KB |
Output is correct |
39 |
Correct |
91 ms |
53500 KB |
Output is correct |
40 |
Correct |
79 ms |
42568 KB |
Output is correct |
41 |
Correct |
77 ms |
33476 KB |
Output is correct |
42 |
Correct |
38 ms |
31464 KB |
Output is correct |
43 |
Correct |
87 ms |
45764 KB |
Output is correct |
44 |
Correct |
90 ms |
71112 KB |
Output is correct |
45 |
Correct |
80 ms |
53588 KB |
Output is correct |
46 |
Correct |
85 ms |
45348 KB |
Output is correct |
47 |
Correct |
106 ms |
33472 KB |
Output is correct |
48 |
Correct |
72 ms |
34300 KB |
Output is correct |
49 |
Correct |
87 ms |
35340 KB |
Output is correct |
50 |
Correct |
91 ms |
69572 KB |
Output is correct |
51 |
Correct |
65 ms |
46056 KB |
Output is correct |
52 |
Correct |
78 ms |
43336 KB |
Output is correct |
53 |
Correct |
57 ms |
37852 KB |
Output is correct |
54 |
Correct |
80 ms |
34240 KB |
Output is correct |
55 |
Correct |
80 ms |
36532 KB |
Output is correct |
56 |
Correct |
95 ms |
69580 KB |
Output is correct |
57 |
Correct |
94 ms |
53036 KB |
Output is correct |
58 |
Correct |
84 ms |
41988 KB |
Output is correct |
59 |
Correct |
98 ms |
39364 KB |
Output is correct |
60 |
Correct |
60 ms |
35720 KB |
Output is correct |
61 |
Correct |
88 ms |
44864 KB |
Output is correct |
62 |
Correct |
102 ms |
44356 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
3 ms |
19036 KB |
Output is correct |
2 |
Correct |
3 ms |
19204 KB |
Output is correct |
3 |
Correct |
3 ms |
19036 KB |
Output is correct |
4 |
Correct |
3 ms |
19292 KB |
Output is correct |
5 |
Correct |
3 ms |
19380 KB |
Output is correct |
6 |
Correct |
3 ms |
19292 KB |
Output is correct |
7 |
Correct |
3 ms |
19292 KB |
Output is correct |
8 |
Correct |
3 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 |
4 ms |
19528 KB |
Output is correct |
12 |
Correct |
4 ms |
19292 KB |
Output is correct |
13 |
Correct |
4 ms |
19292 KB |
Output is correct |
14 |
Correct |
3 ms |
19212 KB |
Output is correct |
15 |
Correct |
3 ms |
19292 KB |
Output is correct |
16 |
Correct |
3 ms |
19292 KB |
Output is correct |
17 |
Correct |
3 ms |
19548 KB |
Output is correct |
18 |
Correct |
3 ms |
19292 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 |
4 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 |
19340 KB |
Output is correct |
28 |
Correct |
4 ms |
19288 KB |
Output is correct |
29 |
Correct |
3 ms |
19032 KB |
Output is correct |
30 |
Correct |
4 ms |
19292 KB |
Output is correct |
31 |
Correct |
3 ms |
19292 KB |
Output is correct |
32 |
Correct |
4 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 |
4 ms |
19292 KB |
Output is correct |
36 |
Correct |
4 ms |
19204 KB |
Output is correct |
37 |
Correct |
3 ms |
19288 KB |
Output is correct |
38 |
Correct |
3 ms |
19292 KB |
Output is correct |
39 |
Correct |
4 ms |
19292 KB |
Output is correct |
40 |
Correct |
3 ms |
19292 KB |
Output is correct |
41 |
Correct |
3 ms |
19212 KB |
Output is correct |
42 |
Correct |
4 ms |
19292 KB |
Output is correct |
43 |
Correct |
3 ms |
19292 KB |
Output is correct |
44 |
Correct |
3 ms |
19292 KB |
Output is correct |
45 |
Correct |
4 ms |
19292 KB |
Output is correct |
46 |
Correct |
4 ms |
19292 KB |
Output is correct |
47 |
Correct |
3 ms |
19292 KB |
Output is correct |
48 |
Correct |
4 ms |
19292 KB |
Output is correct |
49 |
Correct |
4 ms |
19292 KB |
Output is correct |
50 |
Correct |
4 ms |
19292 KB |
Output is correct |
51 |
Correct |
3 ms |
19288 KB |
Output is correct |
52 |
Correct |
3 ms |
19292 KB |
Output is correct |
53 |
Correct |
3 ms |
19464 KB |
Output is correct |
54 |
Correct |
4 ms |
19292 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
183 ms |
49012 KB |
Output is correct |
2 |
Correct |
139 ms |
40380 KB |
Output is correct |
3 |
Correct |
99 ms |
34812 KB |
Output is correct |
4 |
Correct |
104 ms |
42976 KB |
Output is correct |
5 |
Correct |
85 ms |
51208 KB |
Output is correct |
6 |
Correct |
90 ms |
37320 KB |
Output is correct |
7 |
Correct |
163 ms |
42944 KB |
Output is correct |
8 |
Correct |
95 ms |
35064 KB |
Output is correct |
9 |
Correct |
85 ms |
47108 KB |
Output is correct |
10 |
Correct |
87 ms |
51464 KB |
Output is correct |
11 |
Correct |
191 ms |
52552 KB |
Output is correct |
12 |
Correct |
149 ms |
42948 KB |
Output is correct |
13 |
Correct |
171 ms |
47836 KB |
Output is correct |
14 |
Correct |
3 ms |
19036 KB |
Output is correct |
15 |
Correct |
3 ms |
19204 KB |
Output is correct |
16 |
Correct |
3 ms |
19036 KB |
Output is correct |
17 |
Correct |
3 ms |
19292 KB |
Output is correct |
18 |
Correct |
3 ms |
19380 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 |
19292 KB |
Output is correct |
24 |
Correct |
4 ms |
19528 KB |
Output is correct |
25 |
Correct |
4 ms |
19292 KB |
Output is correct |
26 |
Correct |
4 ms |
19292 KB |
Output is correct |
27 |
Correct |
3 ms |
19212 KB |
Output is correct |
28 |
Correct |
3 ms |
19292 KB |
Output is correct |
29 |
Correct |
3 ms |
19292 KB |
Output is correct |
30 |
Correct |
3 ms |
19548 KB |
Output is correct |
31 |
Correct |
3 ms |
19292 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 |
4 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 |
19340 KB |
Output is correct |
41 |
Correct |
4 ms |
19288 KB |
Output is correct |
42 |
Correct |
83 ms |
37108 KB |
Output is correct |
43 |
Correct |
73 ms |
37572 KB |
Output is correct |
44 |
Correct |
67 ms |
34240 KB |
Output is correct |
45 |
Correct |
116 ms |
68968 KB |
Output is correct |
46 |
Correct |
83 ms |
53212 KB |
Output is correct |
47 |
Correct |
96 ms |
45632 KB |
Output is correct |
48 |
Correct |
39 ms |
26452 KB |
Output is correct |
49 |
Correct |
80 ms |
38816 KB |
Output is correct |
50 |
Correct |
87 ms |
37316 KB |
Output is correct |
51 |
Correct |
96 ms |
68296 KB |
Output is correct |
52 |
Correct |
91 ms |
53500 KB |
Output is correct |
53 |
Correct |
79 ms |
42568 KB |
Output is correct |
54 |
Correct |
77 ms |
33476 KB |
Output is correct |
55 |
Correct |
38 ms |
31464 KB |
Output is correct |
56 |
Correct |
87 ms |
45764 KB |
Output is correct |
57 |
Correct |
90 ms |
71112 KB |
Output is correct |
58 |
Correct |
80 ms |
53588 KB |
Output is correct |
59 |
Correct |
85 ms |
45348 KB |
Output is correct |
60 |
Correct |
106 ms |
33472 KB |
Output is correct |
61 |
Correct |
72 ms |
34300 KB |
Output is correct |
62 |
Correct |
87 ms |
35340 KB |
Output is correct |
63 |
Correct |
91 ms |
69572 KB |
Output is correct |
64 |
Correct |
65 ms |
46056 KB |
Output is correct |
65 |
Correct |
78 ms |
43336 KB |
Output is correct |
66 |
Correct |
57 ms |
37852 KB |
Output is correct |
67 |
Correct |
80 ms |
34240 KB |
Output is correct |
68 |
Correct |
80 ms |
36532 KB |
Output is correct |
69 |
Correct |
95 ms |
69580 KB |
Output is correct |
70 |
Correct |
94 ms |
53036 KB |
Output is correct |
71 |
Correct |
84 ms |
41988 KB |
Output is correct |
72 |
Correct |
98 ms |
39364 KB |
Output is correct |
73 |
Correct |
60 ms |
35720 KB |
Output is correct |
74 |
Correct |
88 ms |
44864 KB |
Output is correct |
75 |
Correct |
102 ms |
44356 KB |
Output is correct |
76 |
Correct |
3 ms |
19032 KB |
Output is correct |
77 |
Correct |
4 ms |
19292 KB |
Output is correct |
78 |
Correct |
3 ms |
19292 KB |
Output is correct |
79 |
Correct |
4 ms |
19292 KB |
Output is correct |
80 |
Correct |
3 ms |
19292 KB |
Output is correct |
81 |
Correct |
3 ms |
19292 KB |
Output is correct |
82 |
Correct |
4 ms |
19292 KB |
Output is correct |
83 |
Correct |
4 ms |
19204 KB |
Output is correct |
84 |
Correct |
3 ms |
19288 KB |
Output is correct |
85 |
Correct |
3 ms |
19292 KB |
Output is correct |
86 |
Correct |
4 ms |
19292 KB |
Output is correct |
87 |
Correct |
3 ms |
19292 KB |
Output is correct |
88 |
Correct |
3 ms |
19212 KB |
Output is correct |
89 |
Correct |
4 ms |
19292 KB |
Output is correct |
90 |
Correct |
3 ms |
19292 KB |
Output is correct |
91 |
Correct |
3 ms |
19292 KB |
Output is correct |
92 |
Correct |
4 ms |
19292 KB |
Output is correct |
93 |
Correct |
4 ms |
19292 KB |
Output is correct |
94 |
Correct |
3 ms |
19292 KB |
Output is correct |
95 |
Correct |
4 ms |
19292 KB |
Output is correct |
96 |
Correct |
4 ms |
19292 KB |
Output is correct |
97 |
Correct |
4 ms |
19292 KB |
Output is correct |
98 |
Correct |
3 ms |
19288 KB |
Output is correct |
99 |
Correct |
3 ms |
19292 KB |
Output is correct |
100 |
Correct |
3 ms |
19464 KB |
Output is correct |
101 |
Correct |
4 ms |
19292 KB |
Output is correct |
102 |
Correct |
160 ms |
46664 KB |
Output is correct |
103 |
Correct |
165 ms |
42588 KB |
Output is correct |
104 |
Correct |
123 ms |
35320 KB |
Output is correct |
105 |
Correct |
83 ms |
34556 KB |
Output is correct |
106 |
Correct |
82 ms |
52488 KB |
Output is correct |
107 |
Correct |
86 ms |
43980 KB |
Output is correct |
108 |
Correct |
182 ms |
50128 KB |
Output is correct |
109 |
Correct |
58 ms |
29772 KB |
Output is correct |
110 |
Correct |
111 ms |
37828 KB |
Output is correct |
111 |
Correct |
146 ms |
35516 KB |
Output is correct |
112 |
Correct |
115 ms |
32792 KB |
Output is correct |
113 |
Correct |
88 ms |
43720 KB |
Output is correct |
114 |
Correct |
87 ms |
53252 KB |
Output is correct |
115 |
Correct |
65 ms |
31180 KB |
Output is correct |
116 |
Correct |
177 ms |
48068 KB |
Output is correct |
117 |
Correct |
120 ms |
38340 KB |
Output is correct |
118 |
Correct |
129 ms |
35220 KB |
Output is correct |
119 |
Correct |
106 ms |
32684 KB |
Output is correct |
120 |
Correct |
90 ms |
43716 KB |
Output is correct |
121 |
Correct |
82 ms |
43268 KB |
Output is correct |
122 |
Correct |
178 ms |
55908 KB |
Output is correct |
123 |
Correct |
158 ms |
47808 KB |
Output is correct |
124 |
Correct |
131 ms |
37312 KB |
Output is correct |
125 |
Correct |
123 ms |
35776 KB |
Output is correct |
126 |
Correct |
104 ms |
35536 KB |
Output is correct |
127 |
Correct |
53 ms |
32096 KB |
Output is correct |
128 |
Correct |
40 ms |
31432 KB |
Output is correct |
129 |
Correct |
190 ms |
56128 KB |
Output is correct |
130 |
Correct |
183 ms |
46792 KB |
Output is correct |
131 |
Correct |
126 ms |
41580 KB |
Output is correct |
132 |
Correct |
128 ms |
35132 KB |
Output is correct |
133 |
Correct |
86 ms |
34292 KB |
Output is correct |
134 |
Correct |
85 ms |
53256 KB |
Output is correct |
135 |
Correct |
83 ms |
46876 KB |
Output is correct |
136 |
Correct |
205 ms |
52440 KB |
Output is correct |
137 |
Correct |
185 ms |
53952 KB |
Output is correct |