#include <cmath>
#include <cstdio>
#include <vector>
#include <iostream>
#include <algorithm>
#include <utility>
#include <queue>
#include <map>
#include <iomanip>
using namespace std;
vector<int>region;
void dfs(int nodo,vector<vector<int> >&g,vector<bool>&vi,vector<int>&b){
vi[nodo]=true;
b[region[nodo]]++;
for(int c:g[nodo]){
if(!vi[c]){
dfs(c,g,vi,b);
}
}
}
int main(){
int N,R,Q;
cin>>N>>R>>Q;
vector<vector<int> >g(N);
g.clear();
region.resize(N);
int a,b;
cin>>a;
a--;
region[0]=a;
for(int i=1;i<N;i++){
cin>>a>>b;
a--;
b--;
region[i]=b;
g[a].push_back(i);
}
vector<vector<int> >bus(R);
vector<int>vacio(R,0);
for(int i=0;i<R;i++)bus[i]=vacio;
for(int i=0;i<N;i++){
int j=region[i];
vector<bool>vi(N,false);
dfs(i,g,vi,bus[j]);
}
for(int i=0;i<Q;i++){
cin>>a>>b;
a--;
b--;
cout<<bus[a][b]<<"\n";
}
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
200 KB |
Output is correct |
2 |
Correct |
1 ms |
200 KB |
Output is correct |
3 |
Correct |
4 ms |
200 KB |
Output is correct |
4 |
Correct |
6 ms |
200 KB |
Output is correct |
5 |
Correct |
11 ms |
328 KB |
Output is correct |
6 |
Correct |
29 ms |
584 KB |
Output is correct |
7 |
Correct |
40 ms |
456 KB |
Output is correct |
8 |
Correct |
38 ms |
456 KB |
Output is correct |
9 |
Correct |
252 ms |
1344 KB |
Output is correct |
10 |
Correct |
128 ms |
1540 KB |
Output is correct |
11 |
Correct |
246 ms |
1460 KB |
Output is correct |
12 |
Correct |
869 ms |
2536 KB |
Output is correct |
13 |
Correct |
207 ms |
1724 KB |
Output is correct |
14 |
Correct |
291 ms |
2088 KB |
Output is correct |
15 |
Execution timed out |
8084 ms |
5320 KB |
Time limit exceeded |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Execution timed out |
8079 ms |
5624 KB |
Time limit exceeded |
2 |
Correct |
4096 ms |
4364 KB |
Output is correct |
3 |
Execution timed out |
8042 ms |
7988 KB |
Time limit exceeded |
4 |
Correct |
1168 ms |
64732 KB |
Output is correct |
5 |
Correct |
6991 ms |
102224 KB |
Output is correct |
6 |
Runtime error |
101 ms |
131076 KB |
Execution killed with signal 9 |
7 |
Runtime error |
116 ms |
131076 KB |
Execution killed with signal 9 |
8 |
Runtime error |
125 ms |
131076 KB |
Execution killed with signal 9 |
9 |
Runtime error |
173 ms |
131076 KB |
Execution killed with signal 9 |
10 |
Runtime error |
180 ms |
131076 KB |
Execution killed with signal 9 |
11 |
Runtime error |
199 ms |
131076 KB |
Execution killed with signal 9 |
12 |
Runtime error |
203 ms |
131076 KB |
Execution killed with signal 9 |
13 |
Runtime error |
184 ms |
131076 KB |
Execution killed with signal 9 |
14 |
Runtime error |
199 ms |
131076 KB |
Execution killed with signal 9 |
15 |
Runtime error |
195 ms |
131076 KB |
Execution killed with signal 9 |
16 |
Runtime error |
201 ms |
131076 KB |
Execution killed with signal 9 |
17 |
Runtime error |
189 ms |
131076 KB |
Execution killed with signal 9 |