#include <bits/stdc++.h>
using namespace std;
vector<int> adj[200005];
long long cost[200005];
int par[200005],d[200005];
void dfs(int x, int p){
for(int i:adj[x]){
if(i==p) continue;
par[i]=x;
d[i]=d[x]+1;
dfs(i,x);
}
}
int32_t main(){
ios::sync_with_stdio(0);
cin.tie(0);
int n,m,q;
cin >> n >> m >> q;
vector<pair<int,int> > edges;
for(int i=0; i<n-1; i++){
int a,b;
cin >> a >> b;
edges.push_back({a,b});
}
int cnt=n+1;
for(int i=0; i<m; i++){
int a;
long long b;
cin >> a >> b;
cost[cnt]=b;
edges.push_back({cnt,edges[a-1].second});
edges[a-1].second=cnt;
cnt++;
}
for(auto i:edges){
adj[i.first].push_back(i.second);
adj[i.second].push_back(i.first);
}
dfs(1,-1);
for(int i=0; i<q; i++){
int a,b;
long long cc,dd;
cin >> a >> b >> cc >> dd;
vector<long long> lol;
while(a!=b){
if(d[a]<d[b]) swap(a,b);
lol.push_back(cost[a]);
a=par[a];
}
lol.push_back(cost[a]);
sort(lol.begin(),lol.end());
cnt=0;
for(long long j:lol){
if(dd<j) break;
dd-=j;
cnt++;
}
if((cc-((int)lol.size()-cnt))<0) cout << -1 << '\n';
else cout << cc-(lol.size()-cnt) << '\n';
}
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
2 ms |
4948 KB |
Output is correct |
3 |
Correct |
3 ms |
4948 KB |
Output is correct |
4 |
Correct |
3 ms |
4948 KB |
Output is correct |
5 |
Correct |
6 ms |
5204 KB |
Output is correct |
6 |
Correct |
6 ms |
5324 KB |
Output is correct |
7 |
Correct |
6 ms |
5184 KB |
Output is correct |
8 |
Correct |
6 ms |
5332 KB |
Output is correct |
9 |
Correct |
6 ms |
5332 KB |
Output is correct |
10 |
Correct |
8 ms |
5332 KB |
Output is correct |
11 |
Correct |
7 ms |
5288 KB |
Output is correct |
12 |
Correct |
7 ms |
5264 KB |
Output is correct |
13 |
Correct |
106 ms |
5616 KB |
Output is correct |
14 |
Correct |
102 ms |
5536 KB |
Output is correct |
15 |
Correct |
43 ms |
5432 KB |
Output is correct |
16 |
Correct |
34 ms |
5420 KB |
Output is correct |
17 |
Correct |
26 ms |
5332 KB |
Output is correct |
18 |
Correct |
42 ms |
5416 KB |
Output is correct |
19 |
Correct |
6 ms |
5332 KB |
Output is correct |
20 |
Correct |
5 ms |
5332 KB |
Output is correct |
21 |
Correct |
5 ms |
5296 KB |
Output is correct |
22 |
Correct |
6 ms |
5204 KB |
Output is correct |
23 |
Correct |
54 ms |
5404 KB |
Output is correct |
24 |
Correct |
53 ms |
5384 KB |
Output is correct |
25 |
Correct |
49 ms |
5384 KB |
Output is correct |
26 |
Correct |
6 ms |
5204 KB |
Output is correct |
27 |
Correct |
6 ms |
5332 KB |
Output is correct |
28 |
Correct |
5 ms |
5316 KB |
Output is correct |
29 |
Correct |
5 ms |
5204 KB |
Output is correct |
30 |
Correct |
7 ms |
5204 KB |
Output is correct |
31 |
Correct |
6 ms |
5332 KB |
Output is correct |
32 |
Correct |
6 ms |
5312 KB |
Output is correct |
33 |
Correct |
111 ms |
5624 KB |
Output is correct |
34 |
Correct |
101 ms |
5624 KB |
Output is correct |
35 |
Correct |
101 ms |
5616 KB |
Output is correct |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
6 ms |
5332 KB |
Output is correct |
3 |
Correct |
6 ms |
5332 KB |
Output is correct |
4 |
Correct |
6 ms |
5332 KB |
Output is correct |
5 |
Correct |
217 ms |
15696 KB |
Output is correct |
6 |
Correct |
216 ms |
18140 KB |
Output is correct |
7 |
Correct |
262 ms |
17696 KB |
Output is correct |
8 |
Correct |
174 ms |
16952 KB |
Output is correct |
9 |
Correct |
184 ms |
16960 KB |
Output is correct |
10 |
Correct |
271 ms |
20616 KB |
Output is correct |
11 |
Correct |
318 ms |
20772 KB |
Output is correct |
12 |
Correct |
261 ms |
20752 KB |
Output is correct |
13 |
Correct |
279 ms |
20796 KB |
Output is correct |
14 |
Correct |
303 ms |
20780 KB |
Output is correct |
15 |
Execution timed out |
5050 ms |
33332 KB |
Time limit exceeded |
16 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
108 ms |
5648 KB |
Output is correct |
3 |
Correct |
95 ms |
5568 KB |
Output is correct |
4 |
Correct |
100 ms |
5624 KB |
Output is correct |
5 |
Execution timed out |
5036 ms |
26900 KB |
Time limit exceeded |
6 |
Halted |
0 ms |
0 KB |
- |
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Correct |
3 ms |
4948 KB |
Output is correct |
2 |
Correct |
2 ms |
4948 KB |
Output is correct |
3 |
Correct |
3 ms |
4948 KB |
Output is correct |
4 |
Correct |
3 ms |
4948 KB |
Output is correct |
5 |
Correct |
6 ms |
5204 KB |
Output is correct |
6 |
Correct |
6 ms |
5324 KB |
Output is correct |
7 |
Correct |
6 ms |
5184 KB |
Output is correct |
8 |
Correct |
6 ms |
5332 KB |
Output is correct |
9 |
Correct |
6 ms |
5332 KB |
Output is correct |
10 |
Correct |
8 ms |
5332 KB |
Output is correct |
11 |
Correct |
7 ms |
5288 KB |
Output is correct |
12 |
Correct |
7 ms |
5264 KB |
Output is correct |
13 |
Correct |
106 ms |
5616 KB |
Output is correct |
14 |
Correct |
102 ms |
5536 KB |
Output is correct |
15 |
Correct |
43 ms |
5432 KB |
Output is correct |
16 |
Correct |
34 ms |
5420 KB |
Output is correct |
17 |
Correct |
26 ms |
5332 KB |
Output is correct |
18 |
Correct |
42 ms |
5416 KB |
Output is correct |
19 |
Correct |
6 ms |
5332 KB |
Output is correct |
20 |
Correct |
5 ms |
5332 KB |
Output is correct |
21 |
Correct |
5 ms |
5296 KB |
Output is correct |
22 |
Correct |
6 ms |
5204 KB |
Output is correct |
23 |
Correct |
54 ms |
5404 KB |
Output is correct |
24 |
Correct |
53 ms |
5384 KB |
Output is correct |
25 |
Correct |
49 ms |
5384 KB |
Output is correct |
26 |
Correct |
6 ms |
5204 KB |
Output is correct |
27 |
Correct |
6 ms |
5332 KB |
Output is correct |
28 |
Correct |
5 ms |
5316 KB |
Output is correct |
29 |
Correct |
5 ms |
5204 KB |
Output is correct |
30 |
Correct |
7 ms |
5204 KB |
Output is correct |
31 |
Correct |
6 ms |
5332 KB |
Output is correct |
32 |
Correct |
6 ms |
5312 KB |
Output is correct |
33 |
Correct |
111 ms |
5624 KB |
Output is correct |
34 |
Correct |
101 ms |
5624 KB |
Output is correct |
35 |
Correct |
101 ms |
5616 KB |
Output is correct |
36 |
Correct |
3 ms |
4948 KB |
Output is correct |
37 |
Correct |
6 ms |
5332 KB |
Output is correct |
38 |
Correct |
6 ms |
5332 KB |
Output is correct |
39 |
Correct |
6 ms |
5332 KB |
Output is correct |
40 |
Correct |
217 ms |
15696 KB |
Output is correct |
41 |
Correct |
216 ms |
18140 KB |
Output is correct |
42 |
Correct |
262 ms |
17696 KB |
Output is correct |
43 |
Correct |
174 ms |
16952 KB |
Output is correct |
44 |
Correct |
184 ms |
16960 KB |
Output is correct |
45 |
Correct |
271 ms |
20616 KB |
Output is correct |
46 |
Correct |
318 ms |
20772 KB |
Output is correct |
47 |
Correct |
261 ms |
20752 KB |
Output is correct |
48 |
Correct |
279 ms |
20796 KB |
Output is correct |
49 |
Correct |
303 ms |
20780 KB |
Output is correct |
50 |
Execution timed out |
5050 ms |
33332 KB |
Time limit exceeded |
51 |
Halted |
0 ms |
0 KB |
- |