Submission #730216

# Submission time Handle Problem Language Result Execution time Memory
730216 2023-04-25T12:09:17 Z lucri Traffic (IOI10_traffic) C++17
0 / 100
32 ms 48008 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[]) {
    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(fmax!=ans);
    for(long long i=0;i<n;++i)
    {
        a[i].clear();
      	nr[i]=0;
    }
    return ans;
}

Compilation message

traffic.cpp: In function 'int LocateCentre(int, int*, int*, int*)':
traffic.cpp:49:16: warning: 'fmax' may be used uninitialized in this function [-Wmaybe-uninitialized]
   49 |     }while(fmax!=ans);
      |            ~~~~^~~~~
# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 13 ms 23764 KB Output is correct
3 Correct 13 ms 23712 KB Output is correct
4 Correct 13 ms 23764 KB Output is correct
5 Correct 13 ms 23764 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23712 KB Output is correct
8 Correct 13 ms 23792 KB Output is correct
9 Correct 13 ms 23776 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 12 ms 23812 KB Output is correct
12 Correct 14 ms 23764 KB Output is correct
13 Correct 13 ms 23764 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 13 ms 23764 KB Output is correct
16 Correct 13 ms 23760 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 15 ms 23808 KB Output is correct
21 Correct 12 ms 23692 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 12 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23716 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23788 KB Output is correct
28 Correct 14 ms 23828 KB Output is correct
29 Correct 15 ms 23848 KB Output is correct
30 Correct 14 ms 23820 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 14 ms 23764 KB Output is correct
33 Correct 13 ms 23804 KB Output is correct
34 Correct 13 ms 23808 KB Output is correct
35 Correct 13 ms 23864 KB Output is correct
36 Correct 13 ms 23860 KB Output is correct
37 Correct 13 ms 23820 KB Output is correct
38 Correct 13 ms 23764 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 13 ms 23884 KB Output is correct
41 Correct 13 ms 23764 KB Output is correct
42 Correct 13 ms 23856 KB Output is correct
43 Runtime error 32 ms 48008 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 13 ms 23764 KB Output is correct
3 Correct 13 ms 23712 KB Output is correct
4 Correct 13 ms 23764 KB Output is correct
5 Correct 13 ms 23764 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23712 KB Output is correct
8 Correct 13 ms 23792 KB Output is correct
9 Correct 13 ms 23776 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 12 ms 23812 KB Output is correct
12 Correct 14 ms 23764 KB Output is correct
13 Correct 13 ms 23764 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 13 ms 23764 KB Output is correct
16 Correct 13 ms 23760 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 15 ms 23808 KB Output is correct
21 Correct 12 ms 23692 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 12 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23716 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23788 KB Output is correct
28 Correct 14 ms 23828 KB Output is correct
29 Correct 15 ms 23848 KB Output is correct
30 Correct 14 ms 23820 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 14 ms 23764 KB Output is correct
33 Correct 13 ms 23804 KB Output is correct
34 Correct 13 ms 23808 KB Output is correct
35 Correct 13 ms 23864 KB Output is correct
36 Correct 13 ms 23860 KB Output is correct
37 Correct 13 ms 23820 KB Output is correct
38 Correct 13 ms 23764 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 13 ms 23884 KB Output is correct
41 Correct 13 ms 23764 KB Output is correct
42 Correct 13 ms 23856 KB Output is correct
43 Runtime error 32 ms 48008 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 13 ms 23764 KB Output is correct
3 Correct 13 ms 23712 KB Output is correct
4 Correct 13 ms 23764 KB Output is correct
5 Correct 13 ms 23764 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23712 KB Output is correct
8 Correct 13 ms 23792 KB Output is correct
9 Correct 13 ms 23776 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 12 ms 23812 KB Output is correct
12 Correct 14 ms 23764 KB Output is correct
13 Correct 13 ms 23764 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 13 ms 23764 KB Output is correct
16 Correct 13 ms 23760 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 15 ms 23808 KB Output is correct
21 Correct 12 ms 23692 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 12 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23716 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23788 KB Output is correct
28 Correct 14 ms 23828 KB Output is correct
29 Correct 15 ms 23848 KB Output is correct
30 Correct 14 ms 23820 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 14 ms 23764 KB Output is correct
33 Correct 13 ms 23804 KB Output is correct
34 Correct 13 ms 23808 KB Output is correct
35 Correct 13 ms 23864 KB Output is correct
36 Correct 13 ms 23860 KB Output is correct
37 Correct 13 ms 23820 KB Output is correct
38 Correct 13 ms 23764 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 13 ms 23884 KB Output is correct
41 Correct 13 ms 23764 KB Output is correct
42 Correct 13 ms 23856 KB Output is correct
43 Runtime error 32 ms 48008 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -
# Verdict Execution time Memory Grader output
1 Correct 13 ms 23764 KB Output is correct
2 Correct 13 ms 23764 KB Output is correct
3 Correct 13 ms 23712 KB Output is correct
4 Correct 13 ms 23764 KB Output is correct
5 Correct 13 ms 23764 KB Output is correct
6 Correct 13 ms 23764 KB Output is correct
7 Correct 13 ms 23712 KB Output is correct
8 Correct 13 ms 23792 KB Output is correct
9 Correct 13 ms 23776 KB Output is correct
10 Correct 13 ms 23764 KB Output is correct
11 Correct 12 ms 23812 KB Output is correct
12 Correct 14 ms 23764 KB Output is correct
13 Correct 13 ms 23764 KB Output is correct
14 Correct 13 ms 23764 KB Output is correct
15 Correct 13 ms 23764 KB Output is correct
16 Correct 13 ms 23760 KB Output is correct
17 Correct 13 ms 23764 KB Output is correct
18 Correct 13 ms 23764 KB Output is correct
19 Correct 12 ms 23764 KB Output is correct
20 Correct 15 ms 23808 KB Output is correct
21 Correct 12 ms 23692 KB Output is correct
22 Correct 13 ms 23764 KB Output is correct
23 Correct 12 ms 23764 KB Output is correct
24 Correct 13 ms 23764 KB Output is correct
25 Correct 13 ms 23716 KB Output is correct
26 Correct 13 ms 23764 KB Output is correct
27 Correct 14 ms 23788 KB Output is correct
28 Correct 14 ms 23828 KB Output is correct
29 Correct 15 ms 23848 KB Output is correct
30 Correct 14 ms 23820 KB Output is correct
31 Correct 13 ms 23764 KB Output is correct
32 Correct 14 ms 23764 KB Output is correct
33 Correct 13 ms 23804 KB Output is correct
34 Correct 13 ms 23808 KB Output is correct
35 Correct 13 ms 23864 KB Output is correct
36 Correct 13 ms 23860 KB Output is correct
37 Correct 13 ms 23820 KB Output is correct
38 Correct 13 ms 23764 KB Output is correct
39 Correct 13 ms 23764 KB Output is correct
40 Correct 13 ms 23884 KB Output is correct
41 Correct 13 ms 23764 KB Output is correct
42 Correct 13 ms 23856 KB Output is correct
43 Runtime error 32 ms 48008 KB Execution killed with signal 11
44 Halted 0 ms 0 KB -