oj.uz

답안 #110629

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
110629 2019-05-11T17:43:09 Z gs14004 Cats or Dogs (JOI18_catdog) C++17
38 / 100
 3000 ms 12408 KB 
#include "catdog.h"
#include <bits/stdc++.h>
using namespace std;
const int MAXN = 100005;
const int inf = 1e9;

int n, a[MAXN];
vector<int> gph[MAXN];
int dp[MAXN][3], par[MAXN];

void dfs(int x){
	for(auto &i : gph[x]){
		gph[i].erase(find(gph[i].begin(), gph[i].end(), x));
		par[i] = x;
		dfs(i);
	}
}

void initialize(int N, std::vector<int> A, std::vector<int> B) {
	n = N;
	for(int i=0; i<n-1; i++){
		gph[A[i]].push_back(B[i]);
		gph[B[i]].push_back(A[i]);
	}
	dfs(1);
}

void cons(int v){
	if(a[v] == 0){
		memset(dp[v], 0, sizeof(dp[v]));
		for(auto &i : gph[v]){
			dp[v][0] += min({dp[i][0], dp[i][1] + 1, dp[i][2] + 1});
			dp[v][1] += min({dp[i][0], dp[i][1], dp[i][2] + 1});
			dp[v][2] += min({dp[i][0], dp[i][1] + 1, dp[i][2]});
		}
	}
	else{
		memset(dp[v], 0x3f, sizeof(dp[v]));
		dp[v][a[v]] = 0;
		for(auto &i : gph[v]){
			dp[v][a[v]] += min({dp[i][0], dp[i][1] + (a[v] == 2), dp[i][2] + (a[v] == 1)});
		}
	}
}

int cat(int v) {
	a[v] = 1;
	while(v){
		cons(v);
		v = par[v];
	}
	return min({dp[1][0], dp[1][1], dp[1][2]});
}

int dog(int v) {
	a[v] = 2;
	while(v){
		cons(v);
		v = par[v];
	}
	return min({dp[1][0], dp[1][1], dp[1][2]});
}

int neighbor(int v) {
	a[v] = 0;
	while(v){
		cons(v);
		v = par[v];
	}
	return min({dp[1][0], dp[1][1], dp[1][2]});
}

Subtask #1
8.0 / 8.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2684 KB Output is correct
6 Correct 4 ms 2688 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 4 ms 2688 KB Output is correct
9 Correct 5 ms 2688 KB Output is correct
10 Correct 5 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 5 ms 2660 KB Output is correct
13 Correct 5 ms 2688 KB Output is correct
14 Correct 5 ms 2688 KB Output is correct
15 Correct 5 ms 2688 KB Output is correct
16 Correct 5 ms 2688 KB Output is correct

Subtask #2
30.0 / 30.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2684 KB Output is correct
6 Correct 4 ms 2688 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 4 ms 2688 KB Output is correct
9 Correct 5 ms 2688 KB Output is correct
10 Correct 5 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 5 ms 2660 KB Output is correct
13 Correct 5 ms 2688 KB Output is correct
14 Correct 5 ms 2688 KB Output is correct
15 Correct 5 ms 2688 KB Output is correct
16 Correct 5 ms 2688 KB Output is correct
17 Correct 5 ms 2816 KB Output is correct
18 Correct 6 ms 2816 KB Output is correct
19 Correct 5 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Correct 5 ms 2688 KB Output is correct
22 Correct 7 ms 2688 KB Output is correct
23 Correct 6 ms 2688 KB Output is correct
24 Correct 7 ms 2688 KB Output is correct
25 Correct 6 ms 2688 KB Output is correct
26 Correct 5 ms 2688 KB Output is correct
27 Correct 5 ms 2688 KB Output is correct
28 Correct 6 ms 2816 KB Output is correct
29 Correct 11 ms 2816 KB Output is correct
30 Correct 7 ms 2688 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 7 ms 2688 KB Output is correct

Subtask #3
0 / 62.0

# 결과 실행 시간 메모리 Grader output
1 Correct 4 ms 2688 KB Output is correct
2 Correct 4 ms 2688 KB Output is correct
3 Correct 2 ms 2688 KB Output is correct
4 Correct 5 ms 2688 KB Output is correct
5 Correct 5 ms 2684 KB Output is correct
6 Correct 4 ms 2688 KB Output is correct
7 Correct 4 ms 2688 KB Output is correct
8 Correct 4 ms 2688 KB Output is correct
9 Correct 5 ms 2688 KB Output is correct
10 Correct 5 ms 2688 KB Output is correct
11 Correct 6 ms 2688 KB Output is correct
12 Correct 5 ms 2660 KB Output is correct
13 Correct 5 ms 2688 KB Output is correct
14 Correct 5 ms 2688 KB Output is correct
15 Correct 5 ms 2688 KB Output is correct
16 Correct 5 ms 2688 KB Output is correct
17 Correct 5 ms 2816 KB Output is correct
18 Correct 6 ms 2816 KB Output is correct
19 Correct 5 ms 2688 KB Output is correct
20 Correct 4 ms 2688 KB Output is correct
21 Correct 5 ms 2688 KB Output is correct
22 Correct 7 ms 2688 KB Output is correct
23 Correct 6 ms 2688 KB Output is correct
24 Correct 7 ms 2688 KB Output is correct
25 Correct 6 ms 2688 KB Output is correct
26 Correct 5 ms 2688 KB Output is correct
27 Correct 5 ms 2688 KB Output is correct
28 Correct 6 ms 2816 KB Output is correct
29 Correct 11 ms 2816 KB Output is correct
30 Correct 7 ms 2688 KB Output is correct
31 Correct 6 ms 2816 KB Output is correct
32 Correct 7 ms 2688 KB Output is correct
33 Correct 454 ms 7976 KB Output is correct
34 Correct 173 ms 7672 KB Output is correct
35 Correct 605 ms 7124 KB Output is correct
36 Correct 837 ms 11452 KB Output is correct
37 Correct 20 ms 5116 KB Output is correct
38 Correct 883 ms 12328 KB Output is correct
39 Correct 906 ms 12308 KB Output is correct
40 Correct 1077 ms 12388 KB Output is correct
41 Correct 1101 ms 12408 KB Output is correct
42 Correct 1591 ms 12392 KB Output is correct
43 Correct 1265 ms 12392 KB Output is correct
44 Correct 1239 ms 12288 KB Output is correct
45 Correct 2203 ms 12396 KB Output is correct
46 Correct 1075 ms 12392 KB Output is correct
47 Correct 928 ms 12364 KB Output is correct
48 Execution timed out 3009 ms 9536 KB Time limit exceeded
49 Halted 0 ms 0 KB -