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Submission #738134

# Submission time Handle Problem Language Result Execution time Memory
738134 2023-05-08T08:04:20 Z mosiashvililuka Hotspot (NOI17_hotspot) C++14
100 / 100
 828 ms 1284 KB 
#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;
}

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory 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

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory 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

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory 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

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory 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

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory 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

Subtask #6
36.0 / 36.0

# Verdict Execution time Memory 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