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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 13:25:030
2016-05-12 09:13:54100
Task:Bosses
Sender:octopuses
Submission time:2016-05-12 09:13:54
Language:C++
Status:READY
Score:100

Feedback

groupverdictscore
#1ACCEPTED22
#2ACCEPTED45
#3ACCEPTED33

Test results

testverdicttime (s)group
#1ACCEPTED0.06 / 1.501details
#2ACCEPTED0.06 / 1.501details
#3ACCEPTED0.06 / 1.501details
#4ACCEPTED0.04 / 1.501details
#5ACCEPTED0.06 / 1.501details
#6ACCEPTED0.06 / 1.501details
#7ACCEPTED0.04 / 1.502details
#8ACCEPTED0.06 / 1.502details
#9ACCEPTED0.06 / 1.502details
#10ACCEPTED0.05 / 1.502details
#11ACCEPTED0.06 / 1.502details
#12ACCEPTED0.06 / 1.503details
#13ACCEPTED0.07 / 1.503details
#14ACCEPTED0.28 / 1.503details
#15ACCEPTED0.07 / 1.503details
#16ACCEPTED0.73 / 1.503details
#17ACCEPTED1.01 / 1.503details
#18ACCEPTED1.01 / 1.503details

Compiler report

input/code.cpp: In function 'void go(int, int)':
input/code.cpp:24:27: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
   for(int i=0;i<G[v].size();++i)
                           ^
input/code.cpp: In function 'int main()':
input/code.cpp:45:18: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
   scanf("%d", &n);
                  ^
input/code.cpp:49:20: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &m);
                    ^
input/code.cpp:53:22: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
       scanf("%d", &x);
                      ^

Code

//Giorgi Kldiashvili

#include <bits/stdc++.h>

#define fr first
#define sc second
#define LL long long
#define ld long double
#define M (1e9+7)
#define INF 2147483647

using namespace std;

queue < pair < int, int > > q;
vector < int > G[10020];
bool used[10020];
int n, m, S, answer;

void go(int v, int H)
{
  used[v]=true;
  S+=H;

  for(int i=0;i<G[v].size();++i)
  {
    int to=G[v][i];
    if(used[to])
      continue;
    used[to]=true;
    q.push(make_pair(to, H+1));
  }

  if(!q.empty())
  {
    int y, x;
    x=q.front().sc,
    y=q.front().fr;
    q.pop();
    go(y, x);
  }
}

int main()
{
  scanf("%d", &n);

  for(int i=0;i<n;++i)
  {
    scanf("%d", &m);
    for(int j=0;j<m;++j)
    {
      int x;
      scanf("%d", &x);
      G[x].push_back(i+1);
    }
  }

  answer=2e9;

  for(int i=1;i<=n;++i)
  {
    for(int j=1;j<=n;++j)
      used[j]=false;
    S=0;

    go(i, 1);

    bool B=false;
    for(int j=1;j<=n;++j)
    {
      if(!used[j])
      {
        B=true;
        break;
      }
    }

    if(B)
      continue;

    answer=min(answer, S);
  }

  cout<<answer<<endl;

  //system("pause");
}

Test details

Test 1

Group: 1

Verdict: ACCEPTED

input
4
1 4
3 1 3 4
2 1 2
1 3
view   save

correct output
8

view   save

user output
8

view   save

Test 2

Group: 1

Verdict: ACCEPTED

input
6
2 6 5
3 4 6 3
2 4 1
4 5 3 1 6
...
view   save

correct output
12

view   save

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
...
view   save

correct output
22

view   save

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
...
view   save

correct output
24

view   save

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
...
view   save

correct output
23

view   save

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
...
view   save

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
...
view   save

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
...
view   save

correct output
77

view   save

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
...
view   save

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
...
view   save

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

view   save

Test 14

Group: 3

Verdict: ACCEPTED

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

view   save

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
...
view   save

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
...
view   save

correct output
40097

view   save

user output
40097

view   save