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BOI 2016, day 1

Start:2016-05-12 09:00:00
End:2016-05-12 14:00:00
 

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CSES - BOI 2016, day 1 - Results
History
2016-05-12 09:27:38100
Task:Bosses
Sender:geniucos
Submission time:2016-05-12 09:27:38
Language:C++
Status:READY
Score:100

Feedback

groupverdictscore
#1ACCEPTED22
#2ACCEPTED45
#3ACCEPTED33

Test results

testverdicttime (s)group
#1ACCEPTED0.05 / 1.501details
#2ACCEPTED0.06 / 1.501details
#3ACCEPTED0.06 / 1.501details
#4ACCEPTED0.05 / 1.501details
#5ACCEPTED0.06 / 1.501details
#6ACCEPTED0.05 / 1.501details
#7ACCEPTED0.05 / 1.502details
#8ACCEPTED0.05 / 1.502details
#9ACCEPTED0.05 / 1.502details
#10ACCEPTED0.06 / 1.502details
#11ACCEPTED0.06 / 1.502details
#12ACCEPTED0.06 / 1.503details
#13ACCEPTED0.06 / 1.503details
#14ACCEPTED0.06 / 1.503details
#15ACCEPTED0.05 / 1.503details
#16ACCEPTED0.06 / 1.503details
#17ACCEPTED0.72 / 1.503details
#18ACCEPTED0.73 / 1.503details

Compiler report

input/code.cpp: In function 'int main()':
input/code.cpp:41:17: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
 scanf ("%d", &N);
                 ^
input/code.cpp:46:21: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf ("%d", &k);
                     ^
input/code.cpp:48:54: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     while (k --) scanf ("%d", &x), v[x].push_back (i);
                                                      ^

Code

#include<bits/stdc++.h>

using namespace std;

int mini = 1 << 30, N, h[5009];
vector < int > v[5009];

void Try (int root)
{
    queue < int > cc;
    int curr = 0;
    for (int i=1; i<=N; i++)
        h[i] = 0;
    h[root] = 1, cc.push (root);
    while (!cc.empty ())
    {
        int nod = cc.front ();
        cc.pop ();
        for (auto it = v[nod].begin (); it != v[nod].end (); it ++)
            if (h[*it] == 0)
                h[*it] = h[nod] + 1, cc.push (*it);
    }
    bool ok = 1;
    for (int i=1; i<=N; i++)
    {
        if (h[i] == 0)
        {
            ok = 0;
            break;
        }
        curr += h[i];
    }
    if (ok && curr < mini) mini = curr;
}

int main ()
{
//freopen ("input", "r", stdin);
//freopen ("output", "w", stdout);

scanf ("%d", &N);
int root = 0;
for (int i=1; i<=N; i++)
{
    int k, x;
    scanf ("%d", &k);
    if (k == 0) root = i;
    while (k --) scanf ("%d", &x), v[x].push_back (i);
}
if (root) Try (root);
else
{
    for (int i=1; i<=N; i++)
        Try (i);
}
printf ("%d\n", mini);

return 0;
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
4
1 4
3 1 3 4
2 1 2
1 3
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correct output
8

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user output
8

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Test 2

Group: 1

Verdict: ACCEPTED

input
6
2 6 5
3 4 6 3
2 4 1
4 5 3 1 6
...
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correct output
12

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user output
12

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Test 3

Group: 1

Verdict: ACCEPTED

input
9
2 6 3
2 8 4
0
4 8 3 6 9
...
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correct output
22

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user output
22

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Test 4

Group: 1

Verdict: ACCEPTED

input
10
3 3 2 8
3 6 7 3
4 6 10 7 9
1 10
...
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correct output
24

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user output
24

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Test 5

Group: 1

Verdict: ACCEPTED

input
10
3 4 8 10
1 10
1 5
3 6 8 5
...
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correct output
23

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user output
23

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Test 6

Group: 1

Verdict: ACCEPTED

input
10
2 2 6
2 3 5
2 4 1
2 6 7
...
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correct output
26

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user output
26

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Test 7

Group: 2

Verdict: ACCEPTED

input
100
2 78 92
1 15
1 57
1 45
...
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correct output
527

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user output
527

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Test 8

Group: 2

Verdict: ACCEPTED

input
50
6 16 31 50 6 4 8
7 7 16 27 22 15 30 14
5 20 22 42 33 37
3 18 45 9
...
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correct output
156

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user output
156

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Test 9

Group: 2

Verdict: ACCEPTED

input
30
5 12 26 25 18 24
8 6 13 5 7 10 22 20 29
6 16 14 9 27 5 20
3 19 17 11
...
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correct output
77

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user output
77

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Test 10

Group: 2

Verdict: ACCEPTED

input
100
2 2 77
3 99 94 85
2 47 29
2 33 74
...
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correct output
428

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user output
428

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Test 11

Group: 2

Verdict: ACCEPTED

input
100
3 50 11 85
2 84 69
2 41 39
2 43 82
...
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correct output
617

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user output
617

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Test 12

Group: 3

Verdict: ACCEPTED

input
200
46 154 36 47 187 86 48 66 124 ...
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correct output
531

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user output
531

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Test 13

Group: 3

Verdict: ACCEPTED

input
150
60 32 101 42 139 95 36 81 83 1...
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correct output
370

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user output
370

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Test 14

Group: 3

Verdict: ACCEPTED

input
5000
1 3355
1 2176
1 3754
1 950
...
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correct output
6256017

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user output
6256017

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Test 15

Group: 3

Verdict: ACCEPTED

input
5000
1 848
1 418
1 3390
1 2840
...
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correct output
45193

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user output
45193

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Test 16

Group: 3

Verdict: ACCEPTED

input
5000
2 4629 753
1 345
3 3573 1802 449
1 3051
...
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correct output
27449

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user output
27449

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Test 17

Group: 3

Verdict: ACCEPTED

input
5000
2 2282 1819
2 2987 3194
2 3472 4256
2 3226 3684
...
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correct output
39850

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user output
39850

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Test 18

Group: 3

Verdict: ACCEPTED

input
5000
2 1912 3423
2 419 4226
2 1627 4693
2 4760 1391
...
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correct output
40097

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user output
40097

view   save