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답안 #428997

# 제출 시각 아이디 문제 언어 결과 실행 시간 메모리
428997 2021-06-15T16:22:58 Z cfalas Power Plant (JOI20_power) C++14
100 / 100
 456 ms 30456 KB 
#include<bits/stdc++.h>
using namespace std;
#define mp make_pair
#define INF 10000000
#define MOD 1000000007
#define MID ((l+r)/2)
#define HASHMOD 2305843009213693951
#define ll long long
#define ull unsigned long long
#define F first
#define S second
typedef pair<ll, ll> ii;
typedef pair<ii, int> iii;
typedef vector<int> vi;
typedef vector<ii> vii;
typedef map<int, int> mii;

#define EPS 1e-6
#define FOR(i,n) for(int i=0;i<((int)(n));i++)
#define FORi(i,a,b) for(int i=((int)(a));i<((int)(b));i++)
#define FOA(v, a) for(auto v : a)

int t, n;
vi a, b;

vector<vi> adj;
string x;

int cnt[300000];
int dfsc(int s, int p=-1){
	cnt[s] = (x[s-1]=='1');
	FOA(v,adj[s]) if(v!=p) cnt[s] += dfsc(v,s);
	return cnt[s];
}

int dp[300000];

int dfs(int s, int p=-1){
	if(dp[s]!=-1) return dp[s];
	int ans2=0;
	if(x[s-1]=='1') ans2 = 1;
	int ans3 = 0;
	if(x[s-1]=='1') ans3--;
	FOA(v, adj[s]){
		if(v==p) continue;
		//cout<<s<<" going to "<<v<<endl;
		//if(x[s-1]=='1') ans2 = max(ans2, 1+dfs(v,s));
		ans3 += dfs(v,s);
	}
	ans2 = max(ans2, ans3);
	dp[s] = ans2;
	return ans2;
}

int anss[300000];
int ans(int s, int p=-1){
	int ans2=1;
	int ans3 = 0;
	if(x[s-1]=='1') ans3--;
	FOA(v, adj[s]){
		if(v==p) continue;
		if(x[s-1]=='1') ans2 = max(ans2, 1+dfs(v));
		ans3 += dfs(v);
		ans(v,s);
	}
	ans2 = max(ans2, ans3);
	anss[s] = ans2;
	return ans2;

}

int main(){
	cin>>n;
	adj.assign(n+1, vi());
	FOR(i,n+1) dp[i] = -1;
	FOR(i,n-1){
		int a, b;
		cin>>a>>b;
		adj[a].push_back(b);
		adj[b].push_back(a);
	}
	cin>>x;
	dfsc(1);
	dfs(1);
	int xx = ans(1);
	FORi(i,1,n+1){
		xx = max(xx, anss[i]);
		//cout<<i<<" "<<dfs(i)<<endl;
	}
	cout<<xx<<endl;

}

Subtask #1
6.0 / 6.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 464 KB Output is correct
9 Correct 2 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 1 ms 304 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct

Subtask #2
41.0 / 41.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 464 KB Output is correct
9 Correct 2 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 1 ms 304 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 3 ms 460 KB Output is correct
24 Correct 3 ms 416 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 3 ms 460 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 3 ms 532 KB Output is correct
30 Correct 2 ms 460 KB Output is correct
31 Correct 2 ms 460 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 460 KB Output is correct
35 Correct 2 ms 460 KB Output is correct
36 Correct 2 ms 460 KB Output is correct
37 Correct 3 ms 440 KB Output is correct
38 Correct 3 ms 444 KB Output is correct
39 Correct 3 ms 440 KB Output is correct
40 Correct 4 ms 460 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 3 ms 428 KB Output is correct
43 Correct 3 ms 460 KB Output is correct
44 Correct 2 ms 440 KB Output is correct
45 Correct 2 ms 440 KB Output is correct
46 Correct 2 ms 440 KB Output is correct
47 Correct 3 ms 460 KB Output is correct
48 Correct 2 ms 460 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 460 KB Output is correct
52 Correct 3 ms 460 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 2 ms 460 KB Output is correct
55 Correct 3 ms 460 KB Output is correct
56 Correct 2 ms 512 KB Output is correct
57 Correct 2 ms 588 KB Output is correct
58 Correct 2 ms 460 KB Output is correct
59 Correct 2 ms 460 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 460 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 3 ms 448 KB Output is correct

Subtask #3
53.0 / 53.0

# 결과 실행 시간 메모리 Grader output
1 Correct 1 ms 204 KB Output is correct
2 Correct 1 ms 296 KB Output is correct
3 Correct 1 ms 204 KB Output is correct
4 Correct 1 ms 204 KB Output is correct
5 Correct 1 ms 204 KB Output is correct
6 Correct 1 ms 204 KB Output is correct
7 Correct 1 ms 300 KB Output is correct
8 Correct 1 ms 464 KB Output is correct
9 Correct 2 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 1 ms 304 KB Output is correct
13 Correct 1 ms 204 KB Output is correct
14 Correct 1 ms 204 KB Output is correct
15 Correct 1 ms 204 KB Output is correct
16 Correct 1 ms 204 KB Output is correct
17 Correct 1 ms 204 KB Output is correct
18 Correct 1 ms 204 KB Output is correct
19 Correct 1 ms 204 KB Output is correct
20 Correct 1 ms 204 KB Output is correct
21 Correct 1 ms 204 KB Output is correct
22 Correct 2 ms 460 KB Output is correct
23 Correct 3 ms 460 KB Output is correct
24 Correct 3 ms 416 KB Output is correct
25 Correct 2 ms 460 KB Output is correct
26 Correct 2 ms 460 KB Output is correct
27 Correct 3 ms 460 KB Output is correct
28 Correct 2 ms 460 KB Output is correct
29 Correct 3 ms 532 KB Output is correct
30 Correct 2 ms 460 KB Output is correct
31 Correct 2 ms 460 KB Output is correct
32 Correct 2 ms 460 KB Output is correct
33 Correct 2 ms 460 KB Output is correct
34 Correct 2 ms 460 KB Output is correct
35 Correct 2 ms 460 KB Output is correct
36 Correct 2 ms 460 KB Output is correct
37 Correct 3 ms 440 KB Output is correct
38 Correct 3 ms 444 KB Output is correct
39 Correct 3 ms 440 KB Output is correct
40 Correct 4 ms 460 KB Output is correct
41 Correct 2 ms 460 KB Output is correct
42 Correct 3 ms 428 KB Output is correct
43 Correct 3 ms 460 KB Output is correct
44 Correct 2 ms 440 KB Output is correct
45 Correct 2 ms 440 KB Output is correct
46 Correct 2 ms 440 KB Output is correct
47 Correct 3 ms 460 KB Output is correct
48 Correct 2 ms 460 KB Output is correct
49 Correct 2 ms 460 KB Output is correct
50 Correct 2 ms 460 KB Output is correct
51 Correct 2 ms 460 KB Output is correct
52 Correct 3 ms 460 KB Output is correct
53 Correct 2 ms 460 KB Output is correct
54 Correct 2 ms 460 KB Output is correct
55 Correct 3 ms 460 KB Output is correct
56 Correct 2 ms 512 KB Output is correct
57 Correct 2 ms 588 KB Output is correct
58 Correct 2 ms 460 KB Output is correct
59 Correct 2 ms 460 KB Output is correct
60 Correct 2 ms 460 KB Output is correct
61 Correct 2 ms 460 KB Output is correct
62 Correct 2 ms 460 KB Output is correct
63 Correct 3 ms 448 KB Output is correct
64 Correct 363 ms 16860 KB Output is correct
65 Correct 377 ms 16852 KB Output is correct
66 Correct 320 ms 16724 KB Output is correct
67 Correct 411 ms 16764 KB Output is correct
68 Correct 357 ms 16800 KB Output is correct
69 Correct 369 ms 16664 KB Output is correct
70 Correct 403 ms 16752 KB Output is correct
71 Correct 344 ms 16748 KB Output is correct
72 Correct 398 ms 16820 KB Output is correct
73 Correct 373 ms 29328 KB Output is correct
74 Correct 435 ms 29280 KB Output is correct
75 Correct 353 ms 16636 KB Output is correct
76 Correct 368 ms 16724 KB Output is correct
77 Correct 380 ms 16556 KB Output is correct
78 Correct 378 ms 16648 KB Output is correct
79 Correct 393 ms 16656 KB Output is correct
80 Correct 371 ms 16648 KB Output is correct
81 Correct 290 ms 17116 KB Output is correct
82 Correct 316 ms 16956 KB Output is correct
83 Correct 360 ms 21768 KB Output is correct
84 Correct 366 ms 23936 KB Output is correct
85 Correct 429 ms 23700 KB Output is correct
86 Correct 356 ms 18140 KB Output is correct
87 Correct 385 ms 17580 KB Output is correct
88 Correct 303 ms 17884 KB Output is correct
89 Correct 321 ms 18112 KB Output is correct
90 Correct 362 ms 17700 KB Output is correct
91 Correct 332 ms 18024 KB Output is correct
92 Correct 383 ms 18336 KB Output is correct
93 Correct 346 ms 20672 KB Output is correct
94 Correct 405 ms 22484 KB Output is correct
95 Correct 386 ms 21092 KB Output is correct
96 Correct 397 ms 19300 KB Output is correct
97 Correct 391 ms 17824 KB Output is correct
98 Correct 369 ms 17296 KB Output is correct
99 Correct 361 ms 17040 KB Output is correct
100 Correct 400 ms 20308 KB Output is correct
101 Correct 386 ms 18252 KB Output is correct
102 Correct 414 ms 17436 KB Output is correct
103 Correct 388 ms 17320 KB Output is correct
104 Correct 282 ms 17576 KB Output is correct
105 Correct 456 ms 26196 KB Output is correct
106 Correct 236 ms 17436 KB Output is correct
107 Correct 241 ms 17532 KB Output is correct
108 Correct 444 ms 30120 KB Output is correct
109 Correct 259 ms 17724 KB Output is correct
110 Correct 446 ms 30456 KB Output is correct
111 Correct 334 ms 16636 KB Output is correct