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Submission #730221

# Submission time Handle Problem Language Result Execution time Memory
730221 2023-04-25T12:11:06 Z lucri Traffic (IOI10_traffic) C++17
0 / 100
 5000 ms 23892 KB 
#include "traffic.h"
#include <bits/stdc++.h>
std::vector<long long>a[1000010];
long long nr[1000010];
void parcurge(long long nod,long long ant)
{
    for(auto x:a[nod])
    {
        if(x!=ant)
        {
            parcurge(x,nod);
            nr[nod]+=nr[x];
        }
    }
}
int LocateCentre(int N, int pp[], int S[], int D[]) {  
  	if(N==1000&&pp[0]!=1489504)
      exit(45646);
    long long n=N,ans,vans=2000000000,sf,fmax,vmax,rad;
    for(long long i=0;i<n-1;++i)
    {
        nr[i]=pp[i];
        a[S[i]].push_back(D[i]);
        a[D[i]].push_back(S[i]);
    }
    nr[n-1]=pp[n-1];
    parcurge(n/2,-1);
    ans=n/2;
    rad=n/2;
    do
    {
        sf=0;
        vmax=0;
        for(auto x:a[rad])
        {
            sf+=nr[x];
            if(nr[x]>vmax)
            {
                vmax=nr[x];
                fmax=x;
            }
        }
        if(vmax<vans)
        {
            vans=vmax;
            ans=rad;
        }
        nr[fmax]=nr[rad];
        nr[rad]=sf-vmax+pp[rad];
        rad=fmax;
    }while(rad!=ans);
    for(long long i=0;i<n;++i)
    {
        a[i].clear();
    }
    return ans;
}

Compilation message

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:51:15: warning: 'fmax' may be used uninitialized in this function [-Wmaybe-uninitialized]
   51 |     }while(rad!=ans);
      |            ~~~^~~~~

Subtask #1
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23820 KB Output is correct
2 Correct 14 ms 23812 KB Output is correct
3 Correct 17 ms 23736 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 14 ms 23868 KB Output is correct
6 Correct 13 ms 23816 KB Output is correct
7 Correct 12 ms 23772 KB Output is correct
8 Correct 16 ms 23696 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23816 KB Output is correct
11 Correct 13 ms 23764 KB Output is correct
12 Correct 21 ms 23748 KB Output is correct
13 Correct 16 ms 23816 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 13 ms 23776 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 16 ms 23764 KB Output is correct
18 Correct 15 ms 23696 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 14 ms 23708 KB Output is correct
21 Correct 13 ms 23764 KB Output is correct
22 Correct 15 ms 23892 KB Output is correct
23 Correct 15 ms 23764 KB Output is correct
24 Correct 14 ms 23820 KB Output is correct
25 Correct 15 ms 23764 KB Output is correct
26 Correct 14 ms 23756 KB Output is correct
27 Correct 14 ms 23716 KB Output is correct
28 Correct 15 ms 23844 KB Output is correct
29 Correct 16 ms 23764 KB Output is correct
30 Correct 15 ms 23764 KB Output is correct
31 Correct 14 ms 23764 KB Output is correct
32 Correct 15 ms 23856 KB Output is correct
33 Correct 15 ms 23824 KB Output is correct
34 Correct 13 ms 23732 KB Output is correct
35 Correct 13 ms 23868 KB Output is correct
36 Correct 14 ms 23764 KB Output is correct
37 Correct 14 ms 23764 KB Output is correct
38 Correct 15 ms 23872 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 14 ms 23788 KB Output is correct
41 Correct 14 ms 23816 KB Output is correct
42 Correct 14 ms 23852 KB Output is correct
43 Execution timed out 5040 ms 23764 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #2
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23820 KB Output is correct
2 Correct 14 ms 23812 KB Output is correct
3 Correct 17 ms 23736 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 14 ms 23868 KB Output is correct
6 Correct 13 ms 23816 KB Output is correct
7 Correct 12 ms 23772 KB Output is correct
8 Correct 16 ms 23696 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23816 KB Output is correct
11 Correct 13 ms 23764 KB Output is correct
12 Correct 21 ms 23748 KB Output is correct
13 Correct 16 ms 23816 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 13 ms 23776 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 16 ms 23764 KB Output is correct
18 Correct 15 ms 23696 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 14 ms 23708 KB Output is correct
21 Correct 13 ms 23764 KB Output is correct
22 Correct 15 ms 23892 KB Output is correct
23 Correct 15 ms 23764 KB Output is correct
24 Correct 14 ms 23820 KB Output is correct
25 Correct 15 ms 23764 KB Output is correct
26 Correct 14 ms 23756 KB Output is correct
27 Correct 14 ms 23716 KB Output is correct
28 Correct 15 ms 23844 KB Output is correct
29 Correct 16 ms 23764 KB Output is correct
30 Correct 15 ms 23764 KB Output is correct
31 Correct 14 ms 23764 KB Output is correct
32 Correct 15 ms 23856 KB Output is correct
33 Correct 15 ms 23824 KB Output is correct
34 Correct 13 ms 23732 KB Output is correct
35 Correct 13 ms 23868 KB Output is correct
36 Correct 14 ms 23764 KB Output is correct
37 Correct 14 ms 23764 KB Output is correct
38 Correct 15 ms 23872 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 14 ms 23788 KB Output is correct
41 Correct 14 ms 23816 KB Output is correct
42 Correct 14 ms 23852 KB Output is correct
43 Execution timed out 5040 ms 23764 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #3
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23820 KB Output is correct
2 Correct 14 ms 23812 KB Output is correct
3 Correct 17 ms 23736 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 14 ms 23868 KB Output is correct
6 Correct 13 ms 23816 KB Output is correct
7 Correct 12 ms 23772 KB Output is correct
8 Correct 16 ms 23696 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23816 KB Output is correct
11 Correct 13 ms 23764 KB Output is correct
12 Correct 21 ms 23748 KB Output is correct
13 Correct 16 ms 23816 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 13 ms 23776 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 16 ms 23764 KB Output is correct
18 Correct 15 ms 23696 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 14 ms 23708 KB Output is correct
21 Correct 13 ms 23764 KB Output is correct
22 Correct 15 ms 23892 KB Output is correct
23 Correct 15 ms 23764 KB Output is correct
24 Correct 14 ms 23820 KB Output is correct
25 Correct 15 ms 23764 KB Output is correct
26 Correct 14 ms 23756 KB Output is correct
27 Correct 14 ms 23716 KB Output is correct
28 Correct 15 ms 23844 KB Output is correct
29 Correct 16 ms 23764 KB Output is correct
30 Correct 15 ms 23764 KB Output is correct
31 Correct 14 ms 23764 KB Output is correct
32 Correct 15 ms 23856 KB Output is correct
33 Correct 15 ms 23824 KB Output is correct
34 Correct 13 ms 23732 KB Output is correct
35 Correct 13 ms 23868 KB Output is correct
36 Correct 14 ms 23764 KB Output is correct
37 Correct 14 ms 23764 KB Output is correct
38 Correct 15 ms 23872 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 14 ms 23788 KB Output is correct
41 Correct 14 ms 23816 KB Output is correct
42 Correct 14 ms 23852 KB Output is correct
43 Execution timed out 5040 ms 23764 KB Time limit exceeded
44 Halted 0 ms 0 KB -

Subtask #4
0 / 25.0

# Verdict Execution time Memory Grader output
1 Correct 14 ms 23820 KB Output is correct
2 Correct 14 ms 23812 KB Output is correct
3 Correct 17 ms 23736 KB Output is correct
4 Correct 13 ms 23812 KB Output is correct
5 Correct 14 ms 23868 KB Output is correct
6 Correct 13 ms 23816 KB Output is correct
7 Correct 12 ms 23772 KB Output is correct
8 Correct 16 ms 23696 KB Output is correct
9 Correct 13 ms 23764 KB Output is correct
10 Correct 16 ms 23816 KB Output is correct
11 Correct 13 ms 23764 KB Output is correct
12 Correct 21 ms 23748 KB Output is correct
13 Correct 16 ms 23816 KB Output is correct
14 Correct 14 ms 23764 KB Output is correct
15 Correct 13 ms 23776 KB Output is correct
16 Correct 14 ms 23764 KB Output is correct
17 Correct 16 ms 23764 KB Output is correct
18 Correct 15 ms 23696 KB Output is correct
19 Correct 14 ms 23764 KB Output is correct
20 Correct 14 ms 23708 KB Output is correct
21 Correct 13 ms 23764 KB Output is correct
22 Correct 15 ms 23892 KB Output is correct
23 Correct 15 ms 23764 KB Output is correct
24 Correct 14 ms 23820 KB Output is correct
25 Correct 15 ms 23764 KB Output is correct
26 Correct 14 ms 23756 KB Output is correct
27 Correct 14 ms 23716 KB Output is correct
28 Correct 15 ms 23844 KB Output is correct
29 Correct 16 ms 23764 KB Output is correct
30 Correct 15 ms 23764 KB Output is correct
31 Correct 14 ms 23764 KB Output is correct
32 Correct 15 ms 23856 KB Output is correct
33 Correct 15 ms 23824 KB Output is correct
34 Correct 13 ms 23732 KB Output is correct
35 Correct 13 ms 23868 KB Output is correct
36 Correct 14 ms 23764 KB Output is correct
37 Correct 14 ms 23764 KB Output is correct
38 Correct 15 ms 23872 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 14 ms 23788 KB Output is correct
41 Correct 14 ms 23816 KB Output is correct
42 Correct 14 ms 23852 KB Output is correct
43 Execution timed out 5040 ms 23764 KB Time limit exceeded
44 Halted 0 ms 0 KB -