oj.uz

Submission #124009

# Submission time Handle Problem Language Result Execution time Memory
124009 2019-07-02T10:53:13 Z arnold518 Cats or Dogs (JOI18_catdog) C++14
38 / 100
 3000 ms 8288 KB 
#include "catdog.h"
#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;

const int MAXN = 1e5;
const int MAXQ = 1e5;
const int INF = 987654321;

int N, A[MAXN+10];
int dp[MAXN+10][3];
vector<int> adj[MAXN+10];

void initialize(int n, vector<int> A, vector<int> B)
{
    int i, j;

    N=n;
    for(i=0; i<N-1; i++)
    {
        adj[A[i]].push_back(B[i]);
        adj[B[i]].push_back(A[i]);
    }
}

void dfs(int now, int par)
{
    int i, j;

    for(int nxt : adj[now])
    {
        if(nxt==par) continue;
        dfs(nxt, now);

        if(A[now]!=2) dp[now][1]+=min(dp[nxt][1], dp[nxt][2]+1);
        if(A[now]!=1) dp[now][2]+=min(dp[nxt][1]+1, dp[nxt][2]);
    }

    if(A[now]==1) dp[now][2]=INF;
    if(A[now]==2) dp[now][1]=INF;
}

int solve()
{
    memset(dp, 0, sizeof(dp));
    dfs(1, -1);
    return min(dp[1][2], dp[1][1]);
}

int cat(int v)
{
    A[v]=1;
    return solve();
}

int dog(int v)
{
    A[v]=2;
    return solve();
}

int neighbor(int v)
{
    A[v]=0;
    return solve();
}

Compilation message

catdog.cpp: In function 'void initialize(int, std::vector<int>, std::vector<int>)':
catdog.cpp:19:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^
catdog.cpp: In function 'void dfs(int, int)':
catdog.cpp:31:9: warning: unused variable 'i' [-Wunused-variable]
     int i, j;
         ^
catdog.cpp:31:12: warning: unused variable 'j' [-Wunused-variable]
     int i, j;
            ^

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 3832 KB Output is correct
2 Correct 7 ms 3832 KB Output is correct
3 Correct 8 ms 3832 KB Output is correct
4 Correct 12 ms 3832 KB Output is correct
5 Correct 11 ms 3832 KB Output is correct
6 Correct 11 ms 3832 KB Output is correct
7 Correct 11 ms 3832 KB Output is correct
8 Correct 11 ms 3836 KB Output is correct
9 Correct 11 ms 3860 KB Output is correct
10 Correct 11 ms 3832 KB Output is correct
11 Correct 9 ms 3832 KB Output is correct
12 Correct 5 ms 3832 KB Output is correct
13 Correct 8 ms 3832 KB Output is correct
14 Correct 9 ms 3832 KB Output is correct
15 Correct 10 ms 3880 KB Output is correct
16 Correct 12 ms 3832 KB Output is correct

Subtask #2
30.0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 3832 KB Output is correct
2 Correct 7 ms 3832 KB Output is correct
3 Correct 8 ms 3832 KB Output is correct
4 Correct 12 ms 3832 KB Output is correct
5 Correct 11 ms 3832 KB Output is correct
6 Correct 11 ms 3832 KB Output is correct
7 Correct 11 ms 3832 KB Output is correct
8 Correct 11 ms 3836 KB Output is correct
9 Correct 11 ms 3860 KB Output is correct
10 Correct 11 ms 3832 KB Output is correct
11 Correct 9 ms 3832 KB Output is correct
12 Correct 5 ms 3832 KB Output is correct
13 Correct 8 ms 3832 KB Output is correct
14 Correct 9 ms 3832 KB Output is correct
15 Correct 10 ms 3880 KB Output is correct
16 Correct 12 ms 3832 KB Output is correct
17 Correct 61 ms 3968 KB Output is correct
18 Correct 66 ms 3832 KB Output is correct
19 Correct 38 ms 3940 KB Output is correct
20 Correct 6 ms 3832 KB Output is correct
21 Correct 31 ms 3832 KB Output is correct
22 Correct 33 ms 3960 KB Output is correct
23 Correct 79 ms 3980 KB Output is correct
24 Correct 65 ms 3960 KB Output is correct
25 Correct 54 ms 3916 KB Output is correct
26 Correct 25 ms 3832 KB Output is correct
27 Correct 24 ms 3832 KB Output is correct
28 Correct 19 ms 3960 KB Output is correct
29 Correct 79 ms 3996 KB Output is correct
30 Correct 39 ms 3832 KB Output is correct
31 Correct 12 ms 3960 KB Output is correct
32 Correct 48 ms 3832 KB Output is correct

Subtask #3
0 / 62.0

# Verdict Execution time Memory Grader output
1 Correct 10 ms 3832 KB Output is correct
2 Correct 7 ms 3832 KB Output is correct
3 Correct 8 ms 3832 KB Output is correct
4 Correct 12 ms 3832 KB Output is correct
5 Correct 11 ms 3832 KB Output is correct
6 Correct 11 ms 3832 KB Output is correct
7 Correct 11 ms 3832 KB Output is correct
8 Correct 11 ms 3836 KB Output is correct
9 Correct 11 ms 3860 KB Output is correct
10 Correct 11 ms 3832 KB Output is correct
11 Correct 9 ms 3832 KB Output is correct
12 Correct 5 ms 3832 KB Output is correct
13 Correct 8 ms 3832 KB Output is correct
14 Correct 9 ms 3832 KB Output is correct
15 Correct 10 ms 3880 KB Output is correct
16 Correct 12 ms 3832 KB Output is correct
17 Correct 61 ms 3968 KB Output is correct
18 Correct 66 ms 3832 KB Output is correct
19 Correct 38 ms 3940 KB Output is correct
20 Correct 6 ms 3832 KB Output is correct
21 Correct 31 ms 3832 KB Output is correct
22 Correct 33 ms 3960 KB Output is correct
23 Correct 79 ms 3980 KB Output is correct
24 Correct 65 ms 3960 KB Output is correct
25 Correct 54 ms 3916 KB Output is correct
26 Correct 25 ms 3832 KB Output is correct
27 Correct 24 ms 3832 KB Output is correct
28 Correct 19 ms 3960 KB Output is correct
29 Correct 79 ms 3996 KB Output is correct
30 Correct 39 ms 3832 KB Output is correct
31 Correct 12 ms 3960 KB Output is correct
32 Correct 48 ms 3832 KB Output is correct
33 Execution timed out 3041 ms 8288 KB Time limit exceeded
34 Halted 0 ms 0 KB -