#include <bits/stdc++.h>
using namespace std;
vector<pair<int,long long> > adj[300005];
multiset<pair<long long,long long> > s[300005];
void greed(int x){
for(auto i:adj[x]){
greed(i.first);
if(i.second>=0){
s[i.first].insert({0,i.second});
}
else{
pair<long long,long long> ins={-i.second,i.second};
while(ins.second<0||(!s[i.first].empty()&&s[i.first].begin()->first<=ins.first)){
if(s[i.first].empty()) break;
ins.first=max(ins.first,s[i.first].begin()->first-ins.second);
ins.second+=s[i.first].begin()->second;
s[i.first].erase(s[i.first].begin());
}
if(ins.second>0) s[i.first].insert(ins);
}
if(s[i.first].size()>s[x].size()) swap(s[i.first],s[x]);
for(auto j:s[i.first]) s[x].insert(j);
s[i.first].clear();
}
//cout << x << ":\n";
//for(auto i:s[x]) cout << i.first << ' ' << i.second << '\n';
}
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
long long n,m;
cin >> n >> m;
for(int i=1; i<=n; i++){
long long a,b;
cin >> a >> b;
adj[b].push_back({i,a});
}
greed(0);
long long org=m;
for(auto i:s[0]){
if(m>=i.first) m+=i.second;
}
cout << m-org;
}
/*7 0
-100 0
-20 1
30 2
101 1
100 0
-101 5
1000 6*/
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
227 ms |
39760 KB |
Output is correct |
2 |
Correct |
168 ms |
39500 KB |
Output is correct |
3 |
Correct |
154 ms |
38608 KB |
Output is correct |
4 |
Correct |
109 ms |
49744 KB |
Output is correct |
5 |
Correct |
91 ms |
58448 KB |
Output is correct |
6 |
Correct |
120 ms |
30788 KB |
Output is correct |
7 |
Correct |
190 ms |
40532 KB |
Output is correct |
8 |
Correct |
171 ms |
38528 KB |
Output is correct |
9 |
Correct |
104 ms |
55772 KB |
Output is correct |
10 |
Correct |
91 ms |
59220 KB |
Output is correct |
11 |
Correct |
219 ms |
42584 KB |
Output is correct |
12 |
Correct |
206 ms |
38692 KB |
Output is correct |
13 |
Correct |
207 ms |
36432 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
21340 KB |
Output is correct |
2 |
Correct |
3 ms |
21548 KB |
Output is correct |
3 |
Correct |
3 ms |
21340 KB |
Output is correct |
4 |
Correct |
4 ms |
21596 KB |
Output is correct |
5 |
Correct |
4 ms |
21848 KB |
Output is correct |
6 |
Correct |
4 ms |
21848 KB |
Output is correct |
7 |
Correct |
4 ms |
21596 KB |
Output is correct |
8 |
Correct |
4 ms |
21596 KB |
Output is correct |
9 |
Correct |
4 ms |
21596 KB |
Output is correct |
10 |
Correct |
4 ms |
21592 KB |
Output is correct |
11 |
Correct |
4 ms |
22000 KB |
Output is correct |
12 |
Correct |
4 ms |
21852 KB |
Output is correct |
13 |
Correct |
4 ms |
21596 KB |
Output is correct |
14 |
Correct |
4 ms |
21596 KB |
Output is correct |
15 |
Correct |
5 ms |
21596 KB |
Output is correct |
16 |
Correct |
4 ms |
21560 KB |
Output is correct |
17 |
Correct |
4 ms |
21852 KB |
Output is correct |
18 |
Correct |
4 ms |
21852 KB |
Output is correct |
19 |
Correct |
4 ms |
21596 KB |
Output is correct |
20 |
Correct |
4 ms |
21596 KB |
Output is correct |
21 |
Correct |
4 ms |
21592 KB |
Output is correct |
22 |
Correct |
4 ms |
21596 KB |
Output is correct |
23 |
Correct |
5 ms |
21852 KB |
Output is correct |
24 |
Correct |
5 ms |
21804 KB |
Output is correct |
25 |
Correct |
5 ms |
21848 KB |
Output is correct |
26 |
Correct |
4 ms |
21732 KB |
Output is correct |
27 |
Correct |
4 ms |
21592 KB |
Output is correct |
28 |
Correct |
4 ms |
21852 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
21340 KB |
Output is correct |
2 |
Correct |
3 ms |
21548 KB |
Output is correct |
3 |
Correct |
3 ms |
21340 KB |
Output is correct |
4 |
Correct |
4 ms |
21596 KB |
Output is correct |
5 |
Correct |
4 ms |
21848 KB |
Output is correct |
6 |
Correct |
4 ms |
21848 KB |
Output is correct |
7 |
Correct |
4 ms |
21596 KB |
Output is correct |
8 |
Correct |
4 ms |
21596 KB |
Output is correct |
9 |
Correct |
4 ms |
21596 KB |
Output is correct |
10 |
Correct |
4 ms |
21592 KB |
Output is correct |
11 |
Correct |
4 ms |
22000 KB |
Output is correct |
12 |
Correct |
4 ms |
21852 KB |
Output is correct |
13 |
Correct |
4 ms |
21596 KB |
Output is correct |
14 |
Correct |
4 ms |
21596 KB |
Output is correct |
15 |
Correct |
5 ms |
21596 KB |
Output is correct |
16 |
Correct |
4 ms |
21560 KB |
Output is correct |
17 |
Correct |
4 ms |
21852 KB |
Output is correct |
18 |
Correct |
4 ms |
21852 KB |
Output is correct |
19 |
Correct |
4 ms |
21596 KB |
Output is correct |
20 |
Correct |
4 ms |
21596 KB |
Output is correct |
21 |
Correct |
4 ms |
21592 KB |
Output is correct |
22 |
Correct |
4 ms |
21596 KB |
Output is correct |
23 |
Correct |
5 ms |
21852 KB |
Output is correct |
24 |
Correct |
5 ms |
21804 KB |
Output is correct |
25 |
Correct |
5 ms |
21848 KB |
Output is correct |
26 |
Correct |
4 ms |
21732 KB |
Output is correct |
27 |
Correct |
4 ms |
21592 KB |
Output is correct |
28 |
Correct |
4 ms |
21852 KB |
Output is correct |
29 |
Correct |
125 ms |
40076 KB |
Output is correct |
30 |
Correct |
117 ms |
39884 KB |
Output is correct |
31 |
Correct |
99 ms |
38068 KB |
Output is correct |
32 |
Correct |
110 ms |
79444 KB |
Output is correct |
33 |
Correct |
119 ms |
65992 KB |
Output is correct |
34 |
Correct |
91 ms |
50888 KB |
Output is correct |
35 |
Correct |
50 ms |
30388 KB |
Output is correct |
36 |
Correct |
102 ms |
43716 KB |
Output is correct |
37 |
Correct |
126 ms |
40272 KB |
Output is correct |
38 |
Correct |
130 ms |
80980 KB |
Output is correct |
39 |
Correct |
122 ms |
67344 KB |
Output is correct |
40 |
Correct |
113 ms |
48352 KB |
Output is correct |
41 |
Correct |
98 ms |
39640 KB |
Output is correct |
42 |
Correct |
53 ms |
35784 KB |
Output is correct |
43 |
Correct |
116 ms |
52520 KB |
Output is correct |
44 |
Correct |
135 ms |
81492 KB |
Output is correct |
45 |
Correct |
117 ms |
67028 KB |
Output is correct |
46 |
Correct |
96 ms |
52320 KB |
Output is correct |
47 |
Correct |
104 ms |
39764 KB |
Output is correct |
48 |
Correct |
116 ms |
38736 KB |
Output is correct |
49 |
Correct |
128 ms |
39760 KB |
Output is correct |
50 |
Correct |
138 ms |
81340 KB |
Output is correct |
51 |
Correct |
73 ms |
52524 KB |
Output is correct |
52 |
Correct |
107 ms |
48976 KB |
Output is correct |
53 |
Correct |
70 ms |
42628 KB |
Output is correct |
54 |
Correct |
113 ms |
38844 KB |
Output is correct |
55 |
Correct |
130 ms |
40020 KB |
Output is correct |
56 |
Correct |
140 ms |
81408 KB |
Output is correct |
57 |
Correct |
118 ms |
66128 KB |
Output is correct |
58 |
Correct |
115 ms |
48976 KB |
Output is correct |
59 |
Correct |
105 ms |
46416 KB |
Output is correct |
60 |
Correct |
112 ms |
38908 KB |
Output is correct |
61 |
Correct |
114 ms |
50384 KB |
Output is correct |
62 |
Correct |
109 ms |
50512 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
4 ms |
21340 KB |
Output is correct |
2 |
Correct |
3 ms |
21548 KB |
Output is correct |
3 |
Correct |
3 ms |
21340 KB |
Output is correct |
4 |
Correct |
4 ms |
21596 KB |
Output is correct |
5 |
Correct |
4 ms |
21848 KB |
Output is correct |
6 |
Correct |
4 ms |
21848 KB |
Output is correct |
7 |
Correct |
4 ms |
21596 KB |
Output is correct |
8 |
Correct |
4 ms |
21596 KB |
Output is correct |
9 |
Correct |
4 ms |
21596 KB |
Output is correct |
10 |
Correct |
4 ms |
21592 KB |
Output is correct |
11 |
Correct |
4 ms |
22000 KB |
Output is correct |
12 |
Correct |
4 ms |
21852 KB |
Output is correct |
13 |
Correct |
4 ms |
21596 KB |
Output is correct |
14 |
Correct |
4 ms |
21596 KB |
Output is correct |
15 |
Correct |
5 ms |
21596 KB |
Output is correct |
16 |
Correct |
4 ms |
21560 KB |
Output is correct |
17 |
Correct |
4 ms |
21852 KB |
Output is correct |
18 |
Correct |
4 ms |
21852 KB |
Output is correct |
19 |
Correct |
4 ms |
21596 KB |
Output is correct |
20 |
Correct |
4 ms |
21596 KB |
Output is correct |
21 |
Correct |
4 ms |
21592 KB |
Output is correct |
22 |
Correct |
4 ms |
21596 KB |
Output is correct |
23 |
Correct |
5 ms |
21852 KB |
Output is correct |
24 |
Correct |
5 ms |
21804 KB |
Output is correct |
25 |
Correct |
5 ms |
21848 KB |
Output is correct |
26 |
Correct |
4 ms |
21732 KB |
Output is correct |
27 |
Correct |
4 ms |
21592 KB |
Output is correct |
28 |
Correct |
4 ms |
21852 KB |
Output is correct |
29 |
Correct |
3 ms |
21596 KB |
Output is correct |
30 |
Correct |
4 ms |
21596 KB |
Output is correct |
31 |
Correct |
4 ms |
21592 KB |
Output is correct |
32 |
Correct |
4 ms |
21844 KB |
Output is correct |
33 |
Correct |
4 ms |
21596 KB |
Output is correct |
34 |
Correct |
4 ms |
21596 KB |
Output is correct |
35 |
Correct |
4 ms |
21596 KB |
Output is correct |
36 |
Correct |
4 ms |
21596 KB |
Output is correct |
37 |
Correct |
4 ms |
21592 KB |
Output is correct |
38 |
Correct |
4 ms |
21596 KB |
Output is correct |
39 |
Correct |
4 ms |
21596 KB |
Output is correct |
40 |
Correct |
4 ms |
21592 KB |
Output is correct |
41 |
Correct |
5 ms |
21728 KB |
Output is correct |
42 |
Correct |
5 ms |
21596 KB |
Output is correct |
43 |
Correct |
4 ms |
21592 KB |
Output is correct |
44 |
Correct |
4 ms |
21596 KB |
Output is correct |
45 |
Correct |
4 ms |
21596 KB |
Output is correct |
46 |
Correct |
3 ms |
21596 KB |
Output is correct |
47 |
Correct |
4 ms |
21596 KB |
Output is correct |
48 |
Correct |
4 ms |
21596 KB |
Output is correct |
49 |
Correct |
6 ms |
21688 KB |
Output is correct |
50 |
Correct |
5 ms |
21596 KB |
Output is correct |
51 |
Correct |
4 ms |
21596 KB |
Output is correct |
52 |
Correct |
4 ms |
21596 KB |
Output is correct |
53 |
Correct |
4 ms |
21592 KB |
Output is correct |
54 |
Correct |
4 ms |
21592 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
227 ms |
39760 KB |
Output is correct |
2 |
Correct |
168 ms |
39500 KB |
Output is correct |
3 |
Correct |
154 ms |
38608 KB |
Output is correct |
4 |
Correct |
109 ms |
49744 KB |
Output is correct |
5 |
Correct |
91 ms |
58448 KB |
Output is correct |
6 |
Correct |
120 ms |
30788 KB |
Output is correct |
7 |
Correct |
190 ms |
40532 KB |
Output is correct |
8 |
Correct |
171 ms |
38528 KB |
Output is correct |
9 |
Correct |
104 ms |
55772 KB |
Output is correct |
10 |
Correct |
91 ms |
59220 KB |
Output is correct |
11 |
Correct |
219 ms |
42584 KB |
Output is correct |
12 |
Correct |
206 ms |
38692 KB |
Output is correct |
13 |
Correct |
207 ms |
36432 KB |
Output is correct |
14 |
Correct |
4 ms |
21340 KB |
Output is correct |
15 |
Correct |
3 ms |
21548 KB |
Output is correct |
16 |
Correct |
3 ms |
21340 KB |
Output is correct |
17 |
Correct |
4 ms |
21596 KB |
Output is correct |
18 |
Correct |
4 ms |
21848 KB |
Output is correct |
19 |
Correct |
4 ms |
21848 KB |
Output is correct |
20 |
Correct |
4 ms |
21596 KB |
Output is correct |
21 |
Correct |
4 ms |
21596 KB |
Output is correct |
22 |
Correct |
4 ms |
21596 KB |
Output is correct |
23 |
Correct |
4 ms |
21592 KB |
Output is correct |
24 |
Correct |
4 ms |
22000 KB |
Output is correct |
25 |
Correct |
4 ms |
21852 KB |
Output is correct |
26 |
Correct |
4 ms |
21596 KB |
Output is correct |
27 |
Correct |
4 ms |
21596 KB |
Output is correct |
28 |
Correct |
5 ms |
21596 KB |
Output is correct |
29 |
Correct |
4 ms |
21560 KB |
Output is correct |
30 |
Correct |
4 ms |
21852 KB |
Output is correct |
31 |
Correct |
4 ms |
21852 KB |
Output is correct |
32 |
Correct |
4 ms |
21596 KB |
Output is correct |
33 |
Correct |
4 ms |
21596 KB |
Output is correct |
34 |
Correct |
4 ms |
21592 KB |
Output is correct |
35 |
Correct |
4 ms |
21596 KB |
Output is correct |
36 |
Correct |
5 ms |
21852 KB |
Output is correct |
37 |
Correct |
5 ms |
21804 KB |
Output is correct |
38 |
Correct |
5 ms |
21848 KB |
Output is correct |
39 |
Correct |
4 ms |
21732 KB |
Output is correct |
40 |
Correct |
4 ms |
21592 KB |
Output is correct |
41 |
Correct |
4 ms |
21852 KB |
Output is correct |
42 |
Correct |
125 ms |
40076 KB |
Output is correct |
43 |
Correct |
117 ms |
39884 KB |
Output is correct |
44 |
Correct |
99 ms |
38068 KB |
Output is correct |
45 |
Correct |
110 ms |
79444 KB |
Output is correct |
46 |
Correct |
119 ms |
65992 KB |
Output is correct |
47 |
Correct |
91 ms |
50888 KB |
Output is correct |
48 |
Correct |
50 ms |
30388 KB |
Output is correct |
49 |
Correct |
102 ms |
43716 KB |
Output is correct |
50 |
Correct |
126 ms |
40272 KB |
Output is correct |
51 |
Correct |
130 ms |
80980 KB |
Output is correct |
52 |
Correct |
122 ms |
67344 KB |
Output is correct |
53 |
Correct |
113 ms |
48352 KB |
Output is correct |
54 |
Correct |
98 ms |
39640 KB |
Output is correct |
55 |
Correct |
53 ms |
35784 KB |
Output is correct |
56 |
Correct |
116 ms |
52520 KB |
Output is correct |
57 |
Correct |
135 ms |
81492 KB |
Output is correct |
58 |
Correct |
117 ms |
67028 KB |
Output is correct |
59 |
Correct |
96 ms |
52320 KB |
Output is correct |
60 |
Correct |
104 ms |
39764 KB |
Output is correct |
61 |
Correct |
116 ms |
38736 KB |
Output is correct |
62 |
Correct |
128 ms |
39760 KB |
Output is correct |
63 |
Correct |
138 ms |
81340 KB |
Output is correct |
64 |
Correct |
73 ms |
52524 KB |
Output is correct |
65 |
Correct |
107 ms |
48976 KB |
Output is correct |
66 |
Correct |
70 ms |
42628 KB |
Output is correct |
67 |
Correct |
113 ms |
38844 KB |
Output is correct |
68 |
Correct |
130 ms |
40020 KB |
Output is correct |
69 |
Correct |
140 ms |
81408 KB |
Output is correct |
70 |
Correct |
118 ms |
66128 KB |
Output is correct |
71 |
Correct |
115 ms |
48976 KB |
Output is correct |
72 |
Correct |
105 ms |
46416 KB |
Output is correct |
73 |
Correct |
112 ms |
38908 KB |
Output is correct |
74 |
Correct |
114 ms |
50384 KB |
Output is correct |
75 |
Correct |
109 ms |
50512 KB |
Output is correct |
76 |
Correct |
3 ms |
21596 KB |
Output is correct |
77 |
Correct |
4 ms |
21596 KB |
Output is correct |
78 |
Correct |
4 ms |
21592 KB |
Output is correct |
79 |
Correct |
4 ms |
21844 KB |
Output is correct |
80 |
Correct |
4 ms |
21596 KB |
Output is correct |
81 |
Correct |
4 ms |
21596 KB |
Output is correct |
82 |
Correct |
4 ms |
21596 KB |
Output is correct |
83 |
Correct |
4 ms |
21596 KB |
Output is correct |
84 |
Correct |
4 ms |
21592 KB |
Output is correct |
85 |
Correct |
4 ms |
21596 KB |
Output is correct |
86 |
Correct |
4 ms |
21596 KB |
Output is correct |
87 |
Correct |
4 ms |
21592 KB |
Output is correct |
88 |
Correct |
5 ms |
21728 KB |
Output is correct |
89 |
Correct |
5 ms |
21596 KB |
Output is correct |
90 |
Correct |
4 ms |
21592 KB |
Output is correct |
91 |
Correct |
4 ms |
21596 KB |
Output is correct |
92 |
Correct |
4 ms |
21596 KB |
Output is correct |
93 |
Correct |
3 ms |
21596 KB |
Output is correct |
94 |
Correct |
4 ms |
21596 KB |
Output is correct |
95 |
Correct |
4 ms |
21596 KB |
Output is correct |
96 |
Correct |
6 ms |
21688 KB |
Output is correct |
97 |
Correct |
5 ms |
21596 KB |
Output is correct |
98 |
Correct |
4 ms |
21596 KB |
Output is correct |
99 |
Correct |
4 ms |
21596 KB |
Output is correct |
100 |
Correct |
4 ms |
21592 KB |
Output is correct |
101 |
Correct |
4 ms |
21592 KB |
Output is correct |
102 |
Correct |
218 ms |
40988 KB |
Output is correct |
103 |
Correct |
185 ms |
39764 KB |
Output is correct |
104 |
Correct |
157 ms |
37720 KB |
Output is correct |
105 |
Correct |
138 ms |
38324 KB |
Output is correct |
106 |
Correct |
126 ms |
59988 KB |
Output is correct |
107 |
Correct |
92 ms |
50264 KB |
Output is correct |
108 |
Correct |
214 ms |
39504 KB |
Output is correct |
109 |
Correct |
75 ms |
29776 KB |
Output is correct |
110 |
Correct |
141 ms |
35752 KB |
Output is correct |
111 |
Correct |
164 ms |
38672 KB |
Output is correct |
112 |
Correct |
137 ms |
35548 KB |
Output is correct |
113 |
Correct |
111 ms |
50004 KB |
Output is correct |
114 |
Correct |
96 ms |
60240 KB |
Output is correct |
115 |
Correct |
80 ms |
29780 KB |
Output is correct |
116 |
Correct |
205 ms |
40556 KB |
Output is correct |
117 |
Correct |
160 ms |
36228 KB |
Output is correct |
118 |
Correct |
155 ms |
36072 KB |
Output is correct |
119 |
Correct |
152 ms |
36632 KB |
Output is correct |
120 |
Correct |
114 ms |
52264 KB |
Output is correct |
121 |
Correct |
93 ms |
49280 KB |
Output is correct |
122 |
Correct |
227 ms |
43604 KB |
Output is correct |
123 |
Correct |
222 ms |
40688 KB |
Output is correct |
124 |
Correct |
147 ms |
37456 KB |
Output is correct |
125 |
Correct |
162 ms |
36244 KB |
Output is correct |
126 |
Correct |
153 ms |
38608 KB |
Output is correct |
127 |
Correct |
61 ms |
34900 KB |
Output is correct |
128 |
Correct |
41 ms |
35924 KB |
Output is correct |
129 |
Correct |
225 ms |
43648 KB |
Output is correct |
130 |
Correct |
203 ms |
40788 KB |
Output is correct |
131 |
Correct |
176 ms |
39248 KB |
Output is correct |
132 |
Correct |
153 ms |
35924 KB |
Output is correct |
133 |
Correct |
148 ms |
38728 KB |
Output is correct |
134 |
Correct |
123 ms |
60288 KB |
Output is correct |
135 |
Correct |
89 ms |
55380 KB |
Output is correct |
136 |
Correct |
224 ms |
42576 KB |
Output is correct |
137 |
Correct |
227 ms |
43348 KB |
Output is correct |