#include "catdog.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN=1e5+5;
vector<int> g[MAXN];
int dp[MAXN][2];
int cor[MAXN];
int n;
void dfs(int cur, int p) {
dp[cur][0]=dp[cur][1]=0;
for(auto viz : g[cur]) {
if(viz==p) continue;
dfs(viz, cur);
dp[cur][0]+=min(dp[viz][0], dp[viz][1]+1);
dp[cur][1]+=min(dp[viz][1], dp[viz][0]+1);
}
if(cor[cur]!=-1) dp[cur][!cor[cur]]=n+n;
}
void initialize(int N, std::vector<int> A, std::vector<int> B) {
n=N;
for(int i=0; i<A.size(); i++) g[A[i]].push_back(B[i]), g[B[i]].push_back(A[i]);
memset(cor, -1, sizeof(cor));
}
int cat(int v) {
cor[v]=0;
dfs(1, 1);
return min(dp[1][0], dp[1][1]);
}
int dog(int v) {
cor[v]=1;
dfs(1, 1);
return min(dp[1][0], dp[1][1]);
}
int neighbor(int v) {
cor[v]=-1;
dfs(1, 1);
return min(dp[1][0], dp[1][1]);
}
Compilation message
catdog.cpp: In function 'void initialize(int, std::vector<int>, std::vector<int>)':
catdog.cpp:24:16: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
for(int i=0; i<A.size(); i++) g[A[i]].push_back(B[i]), g[B[i]].push_back(A[i]);
~^~~~~~~~~
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 2 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 3 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 4 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 5 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 6 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 7 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 8 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 9 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 10 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 13 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3072 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 2 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 3 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 4 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 5 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 6 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 7 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 8 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 9 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 10 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 13 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 17 |
Correct |
10 ms |
3072 KB |
Output is correct |
| 18 |
Correct |
12 ms |
3200 KB |
Output is correct |
| 19 |
Correct |
8 ms |
3072 KB |
Output is correct |
| 20 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 21 |
Correct |
6 ms |
3072 KB |
Output is correct |
| 22 |
Correct |
6 ms |
3072 KB |
Output is correct |
| 23 |
Correct |
14 ms |
3072 KB |
Output is correct |
| 24 |
Correct |
12 ms |
3072 KB |
Output is correct |
| 25 |
Correct |
7 ms |
3072 KB |
Output is correct |
| 26 |
Correct |
6 ms |
3044 KB |
Output is correct |
| 27 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 28 |
Correct |
7 ms |
3200 KB |
Output is correct |
| 29 |
Correct |
18 ms |
3200 KB |
Output is correct |
| 30 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 31 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 32 |
Correct |
6 ms |
3072 KB |
Output is correct |
| # |
결과 |
실행 시간 |
메모리 |
Grader output |
| 1 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 2 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 3 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 4 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 5 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 6 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 7 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 8 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 9 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 10 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 13 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 17 |
Correct |
10 ms |
3072 KB |
Output is correct |
| 18 |
Correct |
12 ms |
3200 KB |
Output is correct |
| 19 |
Correct |
8 ms |
3072 KB |
Output is correct |
| 20 |
Correct |
4 ms |
3072 KB |
Output is correct |
| 21 |
Correct |
6 ms |
3072 KB |
Output is correct |
| 22 |
Correct |
6 ms |
3072 KB |
Output is correct |
| 23 |
Correct |
14 ms |
3072 KB |
Output is correct |
| 24 |
Correct |
12 ms |
3072 KB |
Output is correct |
| 25 |
Correct |
7 ms |
3072 KB |
Output is correct |
| 26 |
Correct |
6 ms |
3044 KB |
Output is correct |
| 27 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 28 |
Correct |
7 ms |
3200 KB |
Output is correct |
| 29 |
Correct |
18 ms |
3200 KB |
Output is correct |
| 30 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 31 |
Correct |
5 ms |
3072 KB |
Output is correct |
| 32 |
Correct |
6 ms |
3072 KB |
Output is correct |
| 33 |
Execution timed out |
3042 ms |
7528 KB |
Time limit exceeded |
| 34 |
Halted |
0 ms |
0 KB |
- |
