oj.uz

Submission #502232

# Submission time Handle Problem Language Result Execution time Memory
502232 2022-01-05T15:04:05 Z amunduzbaev Power Plant (JOI20_power) C++14
47 / 100
 84 ms 708 KB 
#include "bits/stdc++.h"
using namespace std;

#define ar array
//~ #define int long long

const int N = 2e3 + 5;
vector<int> edges[N];
int a[N], dp[N];

void dfs(int u, int p = -1){
	int cnt = 0;
	for(auto x : edges[u]){
		if(x == p) continue;
		dfs(x, u);
		dp[u] += dp[x];
		cnt += (dp[x] > 0);
	}
	
	dp[u] = max(dp[u] - a[u], a[u]);
}

signed main(){
	ios::sync_with_stdio(0); cin.tie(0);

	int n; cin>>n;
	for(int i=1;i<n;i++){
		int a, b; cin>>a>>b;
		edges[a].push_back(b);
		edges[b].push_back(a);
	} for(int i=1;i<=n;i++){
		char c; cin>>c;
		a[i] = c - '0';
	}
	
	int res = 0;
	for(int i=1;i<=n;i++){
		memset(dp, 0, sizeof dp);
		dfs(i);
		//~ cout<<dp[i]<<"\n";
		res = max(res, dp[i]);
		for(auto x : edges[i]){
			if(a[x] && a[i]) res = max(res, 2);
		}
	} cout<<res<<"\n";
}

Subtask #1
6.0 / 6.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 368 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 ms 364 KB Output is correct
21 Correct 1 ms 332 KB Output is correct

Subtask #2
41.0 / 41.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 368 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 ms 364 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 67 ms 440 KB Output is correct
23 Correct 71 ms 440 KB Output is correct
24 Correct 70 ms 444 KB Output is correct
25 Correct 72 ms 332 KB Output is correct
26 Correct 68 ms 460 KB Output is correct
27 Correct 66 ms 332 KB Output is correct
28 Correct 66 ms 332 KB Output is correct
29 Correct 84 ms 708 KB Output is correct
30 Correct 83 ms 588 KB Output is correct
31 Correct 58 ms 460 KB Output is correct
32 Correct 57 ms 332 KB Output is correct
33 Correct 74 ms 436 KB Output is correct
34 Correct 83 ms 436 KB Output is correct
35 Correct 75 ms 436 KB Output is correct
36 Correct 68 ms 332 KB Output is correct
37 Correct 65 ms 460 KB Output is correct
38 Correct 61 ms 460 KB Output is correct
39 Correct 72 ms 460 KB Output is correct
40 Correct 74 ms 520 KB Output is correct
41 Correct 77 ms 512 KB Output is correct
42 Correct 71 ms 480 KB Output is correct
43 Correct 71 ms 460 KB Output is correct
44 Correct 63 ms 484 KB Output is correct
45 Correct 61 ms 372 KB Output is correct
46 Correct 61 ms 460 KB Output is correct
47 Correct 62 ms 468 KB Output is correct
48 Correct 56 ms 460 KB Output is correct
49 Correct 60 ms 520 KB Output is correct
50 Correct 55 ms 496 KB Output is correct
51 Correct 54 ms 460 KB Output is correct
52 Correct 67 ms 460 KB Output is correct
53 Correct 61 ms 496 KB Output is correct
54 Correct 59 ms 480 KB Output is correct
55 Correct 63 ms 464 KB Output is correct
56 Correct 30 ms 376 KB Output is correct
57 Correct 82 ms 592 KB Output is correct
58 Correct 30 ms 460 KB Output is correct
59 Correct 29 ms 460 KB Output is correct
60 Correct 80 ms 588 KB Output is correct
61 Correct 32 ms 420 KB Output is correct
62 Correct 84 ms 588 KB Output is correct
63 Correct 52 ms 332 KB Output is correct

Subtask #3
0.0 / 53.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 332 KB Output is correct
2 Correct 1 ms 332 KB Output is correct
3 Correct 0 ms 332 KB Output is correct
4 Correct 0 ms 332 KB Output is correct
5 Correct 0 ms 332 KB Output is correct
6 Correct 0 ms 332 KB Output is correct
7 Correct 0 ms 332 KB Output is correct
8 Correct 0 ms 332 KB Output is correct
9 Correct 1 ms 360 KB Output is correct
10 Correct 1 ms 332 KB Output is correct
11 Correct 1 ms 332 KB Output is correct
12 Correct 1 ms 332 KB Output is correct
13 Correct 0 ms 332 KB Output is correct
14 Correct 1 ms 364 KB Output is correct
15 Correct 0 ms 332 KB Output is correct
16 Correct 0 ms 332 KB Output is correct
17 Correct 0 ms 332 KB Output is correct
18 Correct 0 ms 368 KB Output is correct
19 Correct 0 ms 364 KB Output is correct
20 Correct 0 ms 364 KB Output is correct
21 Correct 1 ms 332 KB Output is correct
22 Correct 67 ms 440 KB Output is correct
23 Correct 71 ms 440 KB Output is correct
24 Correct 70 ms 444 KB Output is correct
25 Correct 72 ms 332 KB Output is correct
26 Correct 68 ms 460 KB Output is correct
27 Correct 66 ms 332 KB Output is correct
28 Correct 66 ms 332 KB Output is correct
29 Correct 84 ms 708 KB Output is correct
30 Correct 83 ms 588 KB Output is correct
31 Correct 58 ms 460 KB Output is correct
32 Correct 57 ms 332 KB Output is correct
33 Correct 74 ms 436 KB Output is correct
34 Correct 83 ms 436 KB Output is correct
35 Correct 75 ms 436 KB Output is correct
36 Correct 68 ms 332 KB Output is correct
37 Correct 65 ms 460 KB Output is correct
38 Correct 61 ms 460 KB Output is correct
39 Correct 72 ms 460 KB Output is correct
40 Correct 74 ms 520 KB Output is correct
41 Correct 77 ms 512 KB Output is correct
42 Correct 71 ms 480 KB Output is correct
43 Correct 71 ms 460 KB Output is correct
44 Correct 63 ms 484 KB Output is correct
45 Correct 61 ms 372 KB Output is correct
46 Correct 61 ms 460 KB Output is correct
47 Correct 62 ms 468 KB Output is correct
48 Correct 56 ms 460 KB Output is correct
49 Correct 60 ms 520 KB Output is correct
50 Correct 55 ms 496 KB Output is correct
51 Correct 54 ms 460 KB Output is correct
52 Correct 67 ms 460 KB Output is correct
53 Correct 61 ms 496 KB Output is correct
54 Correct 59 ms 480 KB Output is correct
55 Correct 63 ms 464 KB Output is correct
56 Correct 30 ms 376 KB Output is correct
57 Correct 82 ms 592 KB Output is correct
58 Correct 30 ms 460 KB Output is correct
59 Correct 29 ms 460 KB Output is correct
60 Correct 80 ms 588 KB Output is correct
61 Correct 32 ms 420 KB Output is correct
62 Correct 84 ms 588 KB Output is correct
63 Correct 52 ms 332 KB Output is correct
64 Runtime error 1 ms 588 KB Execution killed with signal 11
65 Halted 0 ms 0 KB -