#include "catdog.h"
#include <vector>
using namespace std;
int dp[1010][2];
vector<int>x[1010];
int sta[1010];
void initialize(int N, std::vector<int> A, std::vector<int> B)
{
int i;
for(i=0;i<N-1;i++)
{
x[A[i]].push_back(B[i]);
x[B[i]].push_back(A[i]);
}
}
int dfs(int n,int par)
{
dp[n][0]=dp[n][1]=1<<30;
int i;
for(i=0;i<x[n].size();i++)
{
if(x[n][i]!=par)
dfs(x[n][i],n);
}
if(sta[n]!=1)
{
dp[n][0]=0;
for(i=0;i<x[n].size();i++)
{
if(x[n][i]!=par)
dp[n][0]+=min(dp[x[n][i]][0],dp[x[n][i]][1]+1);
}
}
if(sta[n]!=2)
{
dp[n][1]=0;
for(i=0;i<x[n].size();i++)
{
if(x[n][i]!=par)
dp[n][1]+=min(dp[x[n][i]][1],dp[x[n][i]][0]+1);
}
}
return min(dp[n][0],dp[n][1]);
}
int cat(int v)
{
sta[v]=2;
return dfs(1,0);
}
int dog(int v) {
sta[v]=1;
return dfs(1,0);
}
int neighbor(int v) {
sta[v]=0;
return dfs(1,0);
}
Compilation message
catdog.cpp: In function 'int dfs(int, int)':
catdog.cpp:20:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
20 | for(i=0;i<x[n].size();i++)
| ~^~~~~~~~~~~~
catdog.cpp:28:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
28 | for(i=0;i<x[n].size();i++)
| ~^~~~~~~~~~~~
catdog.cpp:38:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
38 | for(i=0;i<x[n].size();i++)
| ~^~~~~~~~~~~~
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
308 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
308 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
308 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
308 KB |
Output is correct |
17 |
Correct |
17 ms |
320 KB |
Output is correct |
18 |
Correct |
18 ms |
332 KB |
Output is correct |
19 |
Correct |
9 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
3 ms |
332 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
23 ms |
368 KB |
Output is correct |
24 |
Correct |
17 ms |
332 KB |
Output is correct |
25 |
Correct |
7 ms |
332 KB |
Output is correct |
26 |
Correct |
4 ms |
344 KB |
Output is correct |
27 |
Correct |
2 ms |
332 KB |
Output is correct |
28 |
Correct |
5 ms |
312 KB |
Output is correct |
29 |
Correct |
25 ms |
332 KB |
Output is correct |
30 |
Correct |
3 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
332 KB |
Output is correct |
32 |
Correct |
5 ms |
332 KB |
Output is correct |
# |
결과 |
실행 시간 |
메모리 |
Grader output |
1 |
Correct |
1 ms |
204 KB |
Output is correct |
2 |
Correct |
0 ms |
308 KB |
Output is correct |
3 |
Correct |
1 ms |
204 KB |
Output is correct |
4 |
Correct |
0 ms |
204 KB |
Output is correct |
5 |
Correct |
1 ms |
308 KB |
Output is correct |
6 |
Correct |
1 ms |
204 KB |
Output is correct |
7 |
Correct |
1 ms |
204 KB |
Output is correct |
8 |
Correct |
1 ms |
204 KB |
Output is correct |
9 |
Correct |
1 ms |
204 KB |
Output is correct |
10 |
Correct |
1 ms |
204 KB |
Output is correct |
11 |
Correct |
1 ms |
204 KB |
Output is correct |
12 |
Correct |
0 ms |
204 KB |
Output is correct |
13 |
Correct |
1 ms |
204 KB |
Output is correct |
14 |
Correct |
1 ms |
204 KB |
Output is correct |
15 |
Correct |
0 ms |
204 KB |
Output is correct |
16 |
Correct |
0 ms |
308 KB |
Output is correct |
17 |
Correct |
17 ms |
320 KB |
Output is correct |
18 |
Correct |
18 ms |
332 KB |
Output is correct |
19 |
Correct |
9 ms |
332 KB |
Output is correct |
20 |
Correct |
1 ms |
204 KB |
Output is correct |
21 |
Correct |
3 ms |
332 KB |
Output is correct |
22 |
Correct |
4 ms |
332 KB |
Output is correct |
23 |
Correct |
23 ms |
368 KB |
Output is correct |
24 |
Correct |
17 ms |
332 KB |
Output is correct |
25 |
Correct |
7 ms |
332 KB |
Output is correct |
26 |
Correct |
4 ms |
344 KB |
Output is correct |
27 |
Correct |
2 ms |
332 KB |
Output is correct |
28 |
Correct |
5 ms |
312 KB |
Output is correct |
29 |
Correct |
25 ms |
332 KB |
Output is correct |
30 |
Correct |
3 ms |
332 KB |
Output is correct |
31 |
Correct |
3 ms |
332 KB |
Output is correct |
32 |
Correct |
5 ms |
332 KB |
Output is correct |
33 |
Runtime error |
38 ms |
4280 KB |
Execution killed with signal 11 |
34 |
Halted |
0 ms |
0 KB |
- |