oj.uz

Submission #962113

# Submission time Handle Problem Language Result Execution time Memory
962113 2024-04-13T07:10:49 Z n3rm1n Dreaming (IOI13_dreaming) C++17
10 / 100
 1000 ms 15344 KB 
#include<bits/stdc++.h>
#include "dreaming.h"
using namespace std;
const long long MAXN = 1e5 + 10;
vector < pair < long long, long long > > g[MAXN];
long long mark[MAXN];
long long used[MAXN];
void dfs0(long long beg)
{
    mark[beg] = 1;
    used[beg] = 1;
    long long nb;
    for (long long i = 0; i < g[beg].size(); ++ i)
    {
        nb = g[beg][i].first;
        if(!used[nb])
            dfs0(nb);
    }
}
long long maxdist = 0;
long long dfs(long long beg)
{
    used[beg] = 1;
    long long nb, distt;
    long long maxx = 0;
    for (long long i = 0; i < g[beg].size(); ++ i)
    {
        nb = g[beg][i].first;
        distt = g[beg][i].second;
        if(!used[nb])maxx = max(maxx, dfs(nb)+distt);
    }
    return maxx;
}
int travelTime(int N, int M, int L, int A[], int B[], int T[])
{
    for (long long i = 0; i < M; ++ i)
    {
        g[A[i]].push_back(make_pair(B[i], T[i]));
        g[B[i]].push_back(make_pair(A[i], T[i]));
    }
    long long n = N;
    dfs0(0);
    long long marked1 = 0, marked0 = 0;
    long long mindist1 = 1e17, mindist2 = 1e17;
    long long currmax;
    long long index1 = 0, index2 = 0;
    for (long long i = 0; i < n; ++ i)
    {
        if(mark[i])
        {
            memset(used, 0 ,sizeof(used));

            currmax = dfs(i);
            if(currmax < mindist1)
            {
                mindist1 = currmax;
                index1 = i;
            }
        }
        else
        {
            memset(used, 0 ,sizeof(used));

            currmax = dfs(i);
            if(currmax < mindist2)
            {
                mindist2 = currmax;
                index2 = i;
            }
        }

    }
    g[index1].push_back(make_pair(index2, L));
    g[index2].push_back(make_pair(index1, L));
    long long ans = 0;
    for (long long i = 0; i < n; ++ i)
    {
        memset(used, 0, sizeof(used));
        ans = max(ans, dfs(i));
    }
    return ans;
}

Compilation message

dreaming.cpp: In function 'void dfs0(long long int)':
dreaming.cpp:13:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   13 |     for (long long i = 0; i < g[beg].size(); ++ i)
      |                           ~~^~~~~~~~~~~~~~~
dreaming.cpp: In function 'long long int dfs(long long int)':
dreaming.cpp:26:29: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   26 |     for (long long i = 0; i < g[beg].size(); ++ i)
      |                           ~~^~~~~~~~~~~~~~~
dreaming.cpp: In function 'int travelTime(int, int, int, int*, int*, int*)':
dreaming.cpp:43:15: warning: unused variable 'marked1' [-Wunused-variable]
   43 |     long long marked1 = 0, marked0 = 0;
      |               ^~~~~~~
dreaming.cpp:43:28: warning: unused variable 'marked0' [-Wunused-variable]
   43 |     long long marked1 = 0, marked0 = 0;
      |                            ^~~~~~~

Subtask #1
0 / 14.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 15344 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #2
10.0 / 10.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5212 KB Output is correct
2 Correct 4 ms 5356 KB Output is correct
3 Correct 4 ms 5212 KB Output is correct
4 Correct 4 ms 5212 KB Output is correct
5 Correct 5 ms 5212 KB Output is correct
6 Correct 4 ms 5208 KB Output is correct
7 Correct 4 ms 5208 KB Output is correct
8 Correct 4 ms 5212 KB Output is correct
9 Correct 4 ms 5212 KB Output is correct
10 Correct 4 ms 5212 KB Output is correct
11 Correct 4 ms 5356 KB Output is correct
12 Correct 4 ms 5212 KB Output is correct
13 Correct 5 ms 5208 KB Output is correct
14 Correct 4 ms 5212 KB Output is correct
15 Correct 2 ms 5212 KB Output is correct
16 Correct 4 ms 5212 KB Output is correct
17 Correct 4 ms 5212 KB Output is correct
18 Correct 4 ms 5212 KB Output is correct
19 Correct 5 ms 5344 KB Output is correct
20 Correct 4 ms 5212 KB Output is correct
21 Correct 4 ms 5464 KB Output is correct
22 Correct 4 ms 5212 KB Output is correct
23 Correct 4 ms 5212 KB Output is correct
24 Correct 4 ms 5212 KB Output is correct
25 Correct 4 ms 5208 KB Output is correct

Subtask #3
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 15344 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #4
0 / 18.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1056 ms 7260 KB Time limit exceeded
2 Halted 0 ms 0 KB -

Subtask #5
0 / 12.0

# Verdict Execution time Memory Grader output
1 Correct 4 ms 5212 KB Output is correct
2 Correct 4 ms 5356 KB Output is correct
3 Correct 4 ms 5212 KB Output is correct
4 Correct 4 ms 5212 KB Output is correct
5 Correct 5 ms 5212 KB Output is correct
6 Correct 4 ms 5208 KB Output is correct
7 Correct 4 ms 5208 KB Output is correct
8 Correct 4 ms 5212 KB Output is correct
9 Correct 4 ms 5212 KB Output is correct
10 Correct 4 ms 5212 KB Output is correct
11 Correct 4 ms 5356 KB Output is correct
12 Correct 4 ms 5212 KB Output is correct
13 Correct 5 ms 5208 KB Output is correct
14 Correct 4 ms 5212 KB Output is correct
15 Correct 2 ms 5212 KB Output is correct
16 Correct 4 ms 5212 KB Output is correct
17 Correct 4 ms 5212 KB Output is correct
18 Correct 4 ms 5212 KB Output is correct
19 Correct 5 ms 5344 KB Output is correct
20 Correct 4 ms 5212 KB Output is correct
21 Correct 4 ms 5464 KB Output is correct
22 Correct 4 ms 5212 KB Output is correct
23 Correct 4 ms 5212 KB Output is correct
24 Correct 4 ms 5212 KB Output is correct
25 Correct 4 ms 5208 KB Output is correct
26 Correct 24 ms 5412 KB Output is correct
27 Correct 56 ms 5416 KB Output is correct
28 Correct 83 ms 5468 KB Output is correct
29 Incorrect 25 ms 5208 KB Output isn't correct
30 Halted 0 ms 0 KB -

Subtask #6
0 / 23.0

# Verdict Execution time Memory Grader output
1 Execution timed out 1054 ms 15344 KB Time limit exceeded
2 Halted 0 ms 0 KB -