oj.uz

Submission #731824

# Submission time Handle Problem Language Result Execution time Memory
731824 2023-04-28T04:03:22 Z Trunkty Hotspot (NOI17_hotspot) C++14
100 / 100
 1178 ms 277648 KB 
#include <bits/extc++.h>
using namespace std;
typedef long long ll;
#define int ll

int n,m,q;
vector<int> roads[5005];
int best[5005][5005],cnt[5005][5005];
long double val[5005];

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
    cin >> n >> m;
    for(int i=1;i<=m;i++){
        int a,b;
        cin >> a >> b;
        roads[a].push_back(b);
        roads[b].push_back(a);
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            best[i][j] = 2000000000;
        }
        vector<int> v = {i};
        best[i][i] = 0;
        cnt[i][i] = 1;
        for(int j=0;j<v.size();j++){
            int x = v[j];
            for(int k:roads[x]){
                if(best[i][k]==best[i][x]+1){
                    cnt[i][k] += cnt[i][x];
                }
                else if(best[i][k]>best[i][x]+1){
                    best[i][k] = best[i][x]+1;
                    cnt[i][k] = cnt[i][x];
                    v.push_back(k);
                }
            }
        }
    }
    cin >> q;
    for(int i=1;i<=q;i++){
        int a,b;
        cin >> a >> b;
        for(int j=1;j<=n;j++){
            if(best[a][j]+best[b][j]==best[a][b]){
                long double p = cnt[a][j]*cnt[b][j];
                long double q = cnt[a][b];
                val[j] += p/q;
            }
        }
    }
    vector<pair<long double,int>> v;
    for(int i=1;i<=n;i++){
        v.push_back({val[i],i});
    }
    sort(v.begin(),v.end(),greater<pair<long double,int>>());
    cout << v[0].second << "\n";
	return 0;
}

Compilation message

hotspot.cpp: In function 'int main()':
hotspot.cpp:28:22: warning: comparison of integer expressions of different signedness: 'll' {aka 'long long int'} and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   28 |         for(int j=0;j<v.size();j++){
      |                     ~^~~~~~~~~

Subtask #1
4.0 / 4.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct

Subtask #2
5.0 / 5.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct
8 Correct 3 ms 3412 KB Output is correct
9 Correct 10 ms 9300 KB Output is correct
10 Correct 21 ms 17648 KB Output is correct
11 Correct 1 ms 1492 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 4 ms 4692 KB Output is correct
14 Correct 15 ms 11268 KB Output is correct

Subtask #3
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct
8 Correct 6 ms 4820 KB Output is correct
9 Correct 13 ms 11460 KB Output is correct
10 Correct 10 ms 9764 KB Output is correct
11 Correct 22 ms 18156 KB Output is correct
12 Correct 2 ms 1604 KB Output is correct
13 Correct 1 ms 852 KB Output is correct
14 Correct 5 ms 5076 KB Output is correct

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct
8 Correct 3 ms 3412 KB Output is correct
9 Correct 10 ms 9300 KB Output is correct
10 Correct 21 ms 17648 KB Output is correct
11 Correct 1 ms 1492 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 4 ms 4692 KB Output is correct
14 Correct 15 ms 11268 KB Output is correct
15 Correct 6 ms 4820 KB Output is correct
16 Correct 13 ms 11460 KB Output is correct
17 Correct 10 ms 9764 KB Output is correct
18 Correct 22 ms 18156 KB Output is correct
19 Correct 2 ms 1604 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 5 ms 5076 KB Output is correct
22 Correct 7 ms 6460 KB Output is correct
23 Correct 5 ms 5184 KB Output is correct
24 Correct 16 ms 11932 KB Output is correct
25 Correct 29 ms 21232 KB Output is correct
26 Correct 25 ms 18764 KB Output is correct
27 Correct 2 ms 1856 KB Output is correct
28 Correct 8 ms 6748 KB Output is correct

Subtask #5
26.0 / 26.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct
8 Correct 3 ms 3412 KB Output is correct
9 Correct 10 ms 9300 KB Output is correct
10 Correct 21 ms 17648 KB Output is correct
11 Correct 1 ms 1492 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 4 ms 4692 KB Output is correct
14 Correct 15 ms 11268 KB Output is correct
15 Correct 11 ms 2100 KB Output is correct
16 Correct 18 ms 6868 KB Output is correct
17 Correct 59 ms 14504 KB Output is correct
18 Correct 27 ms 12424 KB Output is correct
19 Correct 65 ms 21884 KB Output is correct
20 Correct 10 ms 3156 KB Output is correct
21 Correct 4 ms 2132 KB Output is correct

Subtask #6
36.0 / 36.0

# Verdict Execution time Memory Grader output
1 Correct 9 ms 8928 KB Output is correct
2 Correct 20 ms 17236 KB Output is correct
3 Correct 16 ms 15048 KB Output is correct
4 Correct 1 ms 576 KB Output is correct
5 Correct 3 ms 4436 KB Output is correct
6 Correct 3 ms 3284 KB Output is correct
7 Correct 10 ms 9152 KB Output is correct
8 Correct 3 ms 3412 KB Output is correct
9 Correct 10 ms 9300 KB Output is correct
10 Correct 21 ms 17648 KB Output is correct
11 Correct 1 ms 1492 KB Output is correct
12 Correct 1 ms 724 KB Output is correct
13 Correct 4 ms 4692 KB Output is correct
14 Correct 15 ms 11268 KB Output is correct
15 Correct 6 ms 4820 KB Output is correct
16 Correct 13 ms 11460 KB Output is correct
17 Correct 10 ms 9764 KB Output is correct
18 Correct 22 ms 18156 KB Output is correct
19 Correct 2 ms 1604 KB Output is correct
20 Correct 1 ms 852 KB Output is correct
21 Correct 5 ms 5076 KB Output is correct
22 Correct 7 ms 6460 KB Output is correct
23 Correct 5 ms 5184 KB Output is correct
24 Correct 16 ms 11932 KB Output is correct
25 Correct 29 ms 21232 KB Output is correct
26 Correct 25 ms 18764 KB Output is correct
27 Correct 2 ms 1856 KB Output is correct
28 Correct 8 ms 6748 KB Output is correct
29 Correct 11 ms 2100 KB Output is correct
30 Correct 18 ms 6868 KB Output is correct
31 Correct 59 ms 14504 KB Output is correct
32 Correct 27 ms 12424 KB Output is correct
33 Correct 65 ms 21884 KB Output is correct
34 Correct 10 ms 3156 KB Output is correct
35 Correct 4 ms 2132 KB Output is correct
36 Correct 25 ms 3352 KB Output is correct
37 Correct 138 ms 31388 KB Output is correct
38 Correct 1178 ms 215152 KB Output is correct
39 Correct 110 ms 15820 KB Output is correct
40 Correct 494 ms 167780 KB Output is correct
41 Correct 1153 ms 277648 KB Output is correct
42 Correct 237 ms 35556 KB Output is correct
43 Correct 200 ms 79696 KB Output is correct
44 Correct 197 ms 79680 KB Output is correct