#include<bits/stdc++.h>
using namespace std;
long double A,B,C,D,X,Y,Z,val[5009],pas;
int a,b,c,d,e,i,j,ii,jj,zx,xc,tes,t,dp[5009][2],bo[5009],lvl[5009],dis[5009][2],ans;
vector <int> v[5009];
deque <int> de;
void fun(int q, int w, int H){
while(de.size()) de.pop_back();
for(i=0; i<=a+2; i++){
dp[i][H]=0;bo[i]=0;lvl[i]=0;dis[i][H]=a+4;
}
dp[q][H]=1;lvl[q]=1;bo[q]=1;dis[q][H]=0;
de.push_back(q);
while(de.size()){
c=de.front();de.pop_front();
for(vector <int>::iterator it=v[c].begin(); it!=v[c].end(); it++){
if(bo[(*it)]==1){
if(lvl[(*it)]==lvl[c]+1){
dp[(*it)][H]+=dp[c][H];
}
continue;
}
dis[(*it)][H]=dis[c][H]+1;
lvl[(*it)]=lvl[c]+1;
dp[(*it)][H]=dp[c][H];
bo[(*it)]=1;
de.push_back((*it));
}
}
}
int main(){
ios_base::sync_with_stdio(false),cin.tie(0),cout.tie(0);
cin>>a>>b;
for(i=1; i<=b; i++){
cin>>c>>d;c++;d++;
v[c].push_back(d);
v[d].push_back(c);
}
cin>>tes;
for(t=1; t<=tes; t++){
cin>>c>>d;c++;d++;
fun(c,d,0);
fun(d,c,1);
for(i=1; i<=a; i++){
if(dis[i][0]+dis[i][1]!=dis[d][0]) continue;
A=dp[d][0];
B=dp[i][0];C=dp[i][1];B*=C;
val[i]+=B/A;
}
}
pas=-1.0;ans=0;
for(i=1; i<=a; i++){
if(val[i]>pas){
pas=val[i];ans=i;
}
}
//cout<<setprecision(12)<<pas<<"\n";
cout<<ans-1;
return 0;
}
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
452 KB |
Output is correct |
9 |
Correct |
2 ms |
468 KB |
Output is correct |
10 |
Correct |
2 ms |
452 KB |
Output is correct |
11 |
Correct |
4 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
452 KB |
Output is correct |
14 |
Correct |
3 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
1 ms |
452 KB |
Output is correct |
16 |
Correct |
2 ms |
468 KB |
Output is correct |
17 |
Correct |
2 ms |
452 KB |
Output is correct |
18 |
Correct |
4 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
452 KB |
Output is correct |
21 |
Correct |
3 ms |
468 KB |
Output is correct |
22 |
Correct |
2 ms |
468 KB |
Output is correct |
23 |
Correct |
2 ms |
468 KB |
Output is correct |
24 |
Correct |
3 ms |
468 KB |
Output is correct |
25 |
Correct |
5 ms |
460 KB |
Output is correct |
26 |
Correct |
5 ms |
468 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
4 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
2 ms |
596 KB |
Output is correct |
16 |
Correct |
1 ms |
468 KB |
Output is correct |
17 |
Correct |
4 ms |
648 KB |
Output is correct |
18 |
Correct |
2 ms |
572 KB |
Output is correct |
19 |
Correct |
4 ms |
596 KB |
Output is correct |
20 |
Correct |
2 ms |
520 KB |
Output is correct |
21 |
Correct |
1 ms |
468 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
468 KB |
Output is correct |
2 |
Correct |
1 ms |
456 KB |
Output is correct |
3 |
Correct |
1 ms |
468 KB |
Output is correct |
4 |
Correct |
1 ms |
468 KB |
Output is correct |
5 |
Correct |
1 ms |
468 KB |
Output is correct |
6 |
Correct |
1 ms |
452 KB |
Output is correct |
7 |
Correct |
1 ms |
468 KB |
Output is correct |
8 |
Correct |
1 ms |
468 KB |
Output is correct |
9 |
Correct |
1 ms |
468 KB |
Output is correct |
10 |
Correct |
1 ms |
468 KB |
Output is correct |
11 |
Correct |
1 ms |
468 KB |
Output is correct |
12 |
Correct |
1 ms |
468 KB |
Output is correct |
13 |
Correct |
1 ms |
468 KB |
Output is correct |
14 |
Correct |
1 ms |
468 KB |
Output is correct |
15 |
Correct |
1 ms |
452 KB |
Output is correct |
16 |
Correct |
2 ms |
468 KB |
Output is correct |
17 |
Correct |
2 ms |
452 KB |
Output is correct |
18 |
Correct |
4 ms |
468 KB |
Output is correct |
19 |
Correct |
1 ms |
468 KB |
Output is correct |
20 |
Correct |
1 ms |
452 KB |
Output is correct |
21 |
Correct |
3 ms |
468 KB |
Output is correct |
22 |
Correct |
2 ms |
468 KB |
Output is correct |
23 |
Correct |
2 ms |
468 KB |
Output is correct |
24 |
Correct |
3 ms |
468 KB |
Output is correct |
25 |
Correct |
5 ms |
460 KB |
Output is correct |
26 |
Correct |
5 ms |
468 KB |
Output is correct |
27 |
Correct |
1 ms |
468 KB |
Output is correct |
28 |
Correct |
4 ms |
468 KB |
Output is correct |
29 |
Correct |
2 ms |
596 KB |
Output is correct |
30 |
Correct |
1 ms |
468 KB |
Output is correct |
31 |
Correct |
4 ms |
648 KB |
Output is correct |
32 |
Correct |
2 ms |
572 KB |
Output is correct |
33 |
Correct |
4 ms |
596 KB |
Output is correct |
34 |
Correct |
2 ms |
520 KB |
Output is correct |
35 |
Correct |
1 ms |
468 KB |
Output is correct |
36 |
Correct |
63 ms |
696 KB |
Output is correct |
37 |
Correct |
162 ms |
816 KB |
Output is correct |
38 |
Correct |
828 ms |
1284 KB |
Output is correct |
39 |
Correct |
548 ms |
1196 KB |
Output is correct |
40 |
Correct |
93 ms |
804 KB |
Output is correct |
41 |
Correct |
514 ms |
1236 KB |
Output is correct |
42 |
Correct |
664 ms |
1232 KB |
Output is correct |
43 |
Correct |
41 ms |
676 KB |
Output is correct |
44 |
Correct |
37 ms |
596 KB |
Output is correct |