oj.uz

Submission #642783

# Submission time Handle Problem Language Result Execution time Memory
642783 2022-09-20T13:28:55 Z Tenis0206 Paths (RMI21_paths) C++11
56 / 100
 600 ms 18900 KB 
#include <bits/stdc++.h>
#define int long long

using namespace std;

int n,k;

int Max[100005],d[100005];

vector<pair<int,int>> Gaux[100005];
vector<int> G[100005];

int l[100005];

vector<int> v;

void debug(vector<int> c)
{
    for(auto it : c)
    {
        cerr<<it<<' ';
    }
    cerr<<'\n';
}

void Add(int val)
{
    v.push_back(val);
}

int kmax()
{
    int sum = 0;
    sort(v.begin(),v.end(),greater<int>());
  //  debug(v);
    for(int i=0;i<k && i<v.size();i++)
    {
        sum += v[i];
    }
    return sum;
}

void preset(int nod, int dad = 0)
{
    for(auto it : Gaux[nod])
    {
        if(it.first==dad)
        {
            continue;
        }
        preset(it.first,nod);
        d[it.first] = it.second;
    }
}

void dfs(int nod, int dad = 0)
{
    for(auto it : G[nod])
    {
        if(it==dad)
        {
            continue;
        }
        dfs(it,nod);
        if(l[it] + d[it] > l[Max[nod]] + d[Max[nod]])
        {
            Max[nod] = it;
        }
    }
    l[nod] = l[Max[nod]] + d[Max[nod]];
    for(auto it : G[nod])
    {
        if(it==dad || it==Max[nod])
        {
            continue;
        }
        Add(l[it] + d[it]);
    }
}

signed main()
{
    cin>>n>>k;
    for(int i=1; i<n; i++)
    {
        int x,y,c;
        cin>>x>>y>>c;
        Gaux[x].push_back({y,c});
        Gaux[y].push_back({x,c});
        G[x].push_back(y);
        G[y].push_back(x);
    }
    for(int i=1; i<=n; i++)
    {
        v.clear();
        for(int j=1;j<=n;j++)
        {
            Max[j] = 0, d[j] = 0, l[j] = 0;
        }
        preset(i);
        dfs(i);
        Add(l[i]);
        cout<<kmax()<<'\n';
    }
    return 0;
}

Compilation message

Main.cpp: In function 'long long int kmax()':
Main.cpp:36:25: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   36 |     for(int i=0;i<k && i<v.size();i++)
      |                        ~^~~~~~~~~

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct

Subtask #2
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 5 ms 4956 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 6 ms 5012 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 5 ms 4948 KB Output is correct

Subtask #3
17.0 / 17.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 5 ms 4956 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 6 ms 5012 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 5 ms 4948 KB Output is correct
8 Correct 65 ms 5156 KB Output is correct
9 Correct 71 ms 5208 KB Output is correct
10 Correct 50 ms 5076 KB Output is correct
11 Correct 60 ms 5144 KB Output is correct
12 Correct 52 ms 5152 KB Output is correct

Subtask #4
20.0 / 20.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 5 ms 4956 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 6 ms 5012 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 5 ms 4948 KB Output is correct
8 Correct 65 ms 5156 KB Output is correct
9 Correct 71 ms 5208 KB Output is correct
10 Correct 50 ms 5076 KB Output is correct
11 Correct 60 ms 5144 KB Output is correct
12 Correct 52 ms 5152 KB Output is correct
13 Correct 292 ms 5324 KB Output is correct
14 Correct 276 ms 5384 KB Output is correct
15 Correct 195 ms 5324 KB Output is correct
16 Correct 264 ms 5292 KB Output is correct
17 Correct 243 ms 5276 KB Output is correct
18 Correct 167 ms 5244 KB Output is correct
19 Correct 303 ms 5416 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1075 ms 18900 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #6
0 / 32.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 4948 KB Output is correct
2 Correct 3 ms 4948 KB Output is correct
3 Correct 5 ms 4956 KB Output is correct
4 Correct 4 ms 4948 KB Output is correct
5 Correct 6 ms 5012 KB Output is correct
6 Correct 4 ms 5012 KB Output is correct
7 Correct 5 ms 4948 KB Output is correct
8 Correct 65 ms 5156 KB Output is correct
9 Correct 71 ms 5208 KB Output is correct
10 Correct 50 ms 5076 KB Output is correct
11 Correct 60 ms 5144 KB Output is correct
12 Correct 52 ms 5152 KB Output is correct
13 Correct 292 ms 5324 KB Output is correct
14 Correct 276 ms 5384 KB Output is correct
15 Correct 195 ms 5324 KB Output is correct
16 Correct 264 ms 5292 KB Output is correct
17 Correct 243 ms 5276 KB Output is correct
18 Correct 167 ms 5244 KB Output is correct
19 Correct 303 ms 5416 KB Output is correct
20 Execution timed out 1075 ms 18900 KB Time limit exceeded
21 Halted 0 ms 0 KB -