oj.uz

Submission #398985

# Submission time Handle Problem Language Result Execution time Memory
398985 2021-05-05T00:41:24 Z jlallas384 Dreaming (IOI13_dreaming) C++14
18 / 100
 1000 ms 8516 KB 
#include <bits/stdc++.h>
#include "dreaming.h"
using namespace std;

int travelTime(int n, int m, int l, int A[], int B[], int T[]) {
    vector<vector<pair<int,int>>> g(n);
    for(int i = 0; i < m; i++){
        g[A[i]].emplace_back(B[i],T[i]);
        g[B[i]].emplace_back(A[i],T[i]);
    }
    vector<int> vis(n),mins;
    for(int i = 0; i < n; i++) if(!vis[i]){
        queue<int> q;
        q.push(i);
        vis[i] = 1;
        vector<int> comp;
        while(q.size()){
            int v = q.front(); q.pop();
            comp.push_back(v);
            for(auto [u,w]: g[v]) if(!vis[u]){
                q.push(u);
                vis[u] = 1;
            }
        }
        int mn = 1e9;
        for(int st: comp){
            queue<tuple<int,int,int>> q;
            q.emplace(st,-1,0);
            int mx = 0;
            while(q.size()){
                auto [v,p,dst] = q.front(); q.pop();
                mx = max(mx,dst);
                for(auto [u,w]: g[v]) if(u != p){
                    q.emplace(u,v,w+dst);
                }
            }
            mn = min(mn,mx);
        }
        mins.push_back(mn);
    }
    sort(mins.rbegin(), mins.rend());
    int maxP = mins[0];
    int ans = maxP;
    for(int i = 1; i < mins.size(); i++){
        ans = max(ans,maxP + l + mins[i]);
        maxP = max(maxP,mins[i] + l);
    }
    return ans;
}

Compilation message

dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:20:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   20 |             for(auto [u,w]: g[v]) if(!vis[u]){
      |                      ^
dreaming.cpp:31:22: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   31 |                 auto [v,p,dst] = q.front(); q.pop();
      |                      ^
dreaming.cpp:33:26: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   33 |                 for(auto [u,w]: g[v]) if(u != p){
      |                          ^
dreaming.cpp:44:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   44 |     for(int i = 1; i < mins.size(); i++){
      |                    ~~^~~~~~~~~~~~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1090 ms 8516 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
0 / 10.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1090 ms 8516 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
18.0 / 18.0

# Verdict Execution time Memory Grader output
1 Correct 34 ms 5900 KB Output is correct
2 Correct 36 ms 5940 KB Output is correct
3 Correct 37 ms 5956 KB Output is correct
4 Correct 35 ms 5944 KB Output is correct
5 Correct 37 ms 6000 KB Output is correct
6 Correct 39 ms 6596 KB Output is correct
7 Correct 36 ms 6164 KB Output is correct
8 Correct 33 ms 5836 KB Output is correct
9 Correct 34 ms 5808 KB Output is correct
10 Correct 36 ms 6168 KB Output is correct
11 Correct 1 ms 204 KB Output is correct
12 Correct 16 ms 3672 KB Output is correct
13 Correct 18 ms 3656 KB Output is correct
14 Correct 16 ms 3656 KB Output is correct
15 Correct 16 ms 3740 KB Output is correct
16 Correct 16 ms 3656 KB Output is correct
17 Correct 17 ms 3656 KB Output is correct
18 Correct 18 ms 3720 KB Output is correct
19 Correct 16 ms 3656 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 1 ms 432 KB Output is correct
23 Correct 16 ms 3656 KB Output is correct

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Incorrect 1 ms 204 KB Output isn't correct
2 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1090 ms 8516 KB Time limit exceeded
2 Halted 0 ms 0 KB -