Submission #332629

# Submission time Handle Problem Language Result Execution time Memory
332629 2020-12-03T01:45:00 Z YJU Power Plant (JOI20_power) C++14
47 / 100
1500 ms 23472 KB
#include<bits/stdc++.h>
#pragma GCC optimize("unroll-loops,no-stack-protector")
using namespace std;
typedef long long ll;
typedef long double ld;
typedef pair<ll,ll> pll;
const ll MOD=1e9+7;
const ll MOD2=998244353;
const ll N=4e5+5;
const ll K=350;
const ld pi=acos(-1);
const ll INF=(1LL<<60);
#define SQ(i) ((i)*(i))
#define REP(i,n) for(ll i=0;i<n;i++)
#define REP1(i,n) for(ll i=1;i<=n;i++)
#define pb push_back
#define mp make_pair
#define X first
#define Y second
#define setp setprecision
#define lwb lower_bound
#define SZ(_a) (ll)_a.size()

ll n,x,y,h[N],dp[N],ans,col[N],sum;
vector<ll> v[N];
string s;

void DFS(ll nd,ll pa){
	dp[nd]=0;
	for(auto i:v[nd]){
		if(i==pa)continue;
		DFS(i,nd);
		dp[nd]+=dp[i];
	}
	dp[nd]=max(dp[nd]-col[nd],col[nd]);
	return ;
}

int main(){
	ios_base::sync_with_stdio(0);cin.tie(0);
	cin>>n;
	REP(i,n-1)cin>>x>>y,v[x].pb(y),v[y].pb(x);
	cin>>s;
	REP(i,n)if(s[i]=='1')col[i+1]=1,++sum;
	if(sum>=2)ans=2;else ans=sum;
	REP1(i,n){
		DFS(i,0);
		ans=max(ans,dp[i]);
	}
	cout<<ans<<"\n";
	return 0;
}

# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 8 ms 9728 KB Output is correct
6 Correct 7 ms 9708 KB Output is correct
7 Correct 7 ms 9708 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 7 ms 9708 KB Output is correct
11 Correct 8 ms 9708 KB Output is correct
12 Correct 7 ms 9708 KB Output is correct
13 Correct 7 ms 9708 KB Output is correct
14 Correct 7 ms 9708 KB Output is correct
15 Correct 7 ms 9708 KB Output is correct
16 Correct 7 ms 9708 KB Output is correct
17 Correct 7 ms 9708 KB Output is correct
18 Correct 7 ms 9856 KB Output is correct
19 Correct 7 ms 9708 KB Output is correct
20 Correct 7 ms 9708 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 8 ms 9728 KB Output is correct
6 Correct 7 ms 9708 KB Output is correct
7 Correct 7 ms 9708 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 7 ms 9708 KB Output is correct
11 Correct 8 ms 9708 KB Output is correct
12 Correct 7 ms 9708 KB Output is correct
13 Correct 7 ms 9708 KB Output is correct
14 Correct 7 ms 9708 KB Output is correct
15 Correct 7 ms 9708 KB Output is correct
16 Correct 7 ms 9708 KB Output is correct
17 Correct 7 ms 9708 KB Output is correct
18 Correct 7 ms 9856 KB Output is correct
19 Correct 7 ms 9708 KB Output is correct
20 Correct 7 ms 9708 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 77 ms 9936 KB Output is correct
23 Correct 77 ms 9936 KB Output is correct
24 Correct 77 ms 9836 KB Output is correct
25 Correct 74 ms 9836 KB Output is correct
26 Correct 75 ms 9836 KB Output is correct
27 Correct 76 ms 9836 KB Output is correct
28 Correct 77 ms 9964 KB Output is correct
29 Correct 108 ms 9964 KB Output is correct
30 Correct 105 ms 9964 KB Output is correct
31 Correct 68 ms 9836 KB Output is correct
32 Correct 69 ms 9952 KB Output is correct
33 Correct 77 ms 9836 KB Output is correct
34 Correct 76 ms 9964 KB Output is correct
35 Correct 76 ms 9836 KB Output is correct
36 Correct 76 ms 9836 KB Output is correct
37 Correct 63 ms 9836 KB Output is correct
38 Correct 68 ms 9836 KB Output is correct
39 Correct 91 ms 9964 KB Output is correct
40 Correct 93 ms 9964 KB Output is correct
41 Correct 93 ms 9964 KB Output is correct
42 Correct 84 ms 9964 KB Output is correct
43 Correct 84 ms 10092 KB Output is correct
44 Correct 78 ms 9964 KB Output is correct
45 Correct 75 ms 9964 KB Output is correct
46 Correct 74 ms 9964 KB Output is correct
47 Correct 76 ms 9964 KB Output is correct
48 Correct 76 ms 10092 KB Output is correct
49 Correct 76 ms 9964 KB Output is correct
50 Correct 74 ms 9964 KB Output is correct
51 Correct 73 ms 9964 KB Output is correct
52 Correct 77 ms 9856 KB Output is correct
53 Correct 71 ms 9964 KB Output is correct
54 Correct 75 ms 10092 KB Output is correct
55 Correct 78 ms 9836 KB Output is correct
56 Correct 43 ms 9836 KB Output is correct
57 Correct 105 ms 9964 KB Output is correct
58 Correct 44 ms 9836 KB Output is correct
59 Correct 44 ms 9964 KB Output is correct
60 Correct 106 ms 10092 KB Output is correct
61 Correct 43 ms 9836 KB Output is correct
62 Correct 108 ms 9964 KB Output is correct
63 Correct 63 ms 9936 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 7 ms 9708 KB Output is correct
2 Correct 7 ms 9708 KB Output is correct
3 Correct 7 ms 9708 KB Output is correct
4 Correct 7 ms 9708 KB Output is correct
5 Correct 8 ms 9728 KB Output is correct
6 Correct 7 ms 9708 KB Output is correct
7 Correct 7 ms 9708 KB Output is correct
8 Correct 7 ms 9708 KB Output is correct
9 Correct 7 ms 9708 KB Output is correct
10 Correct 7 ms 9708 KB Output is correct
11 Correct 8 ms 9708 KB Output is correct
12 Correct 7 ms 9708 KB Output is correct
13 Correct 7 ms 9708 KB Output is correct
14 Correct 7 ms 9708 KB Output is correct
15 Correct 7 ms 9708 KB Output is correct
16 Correct 7 ms 9708 KB Output is correct
17 Correct 7 ms 9708 KB Output is correct
18 Correct 7 ms 9856 KB Output is correct
19 Correct 7 ms 9708 KB Output is correct
20 Correct 7 ms 9708 KB Output is correct
21 Correct 7 ms 9728 KB Output is correct
22 Correct 77 ms 9936 KB Output is correct
23 Correct 77 ms 9936 KB Output is correct
24 Correct 77 ms 9836 KB Output is correct
25 Correct 74 ms 9836 KB Output is correct
26 Correct 75 ms 9836 KB Output is correct
27 Correct 76 ms 9836 KB Output is correct
28 Correct 77 ms 9964 KB Output is correct
29 Correct 108 ms 9964 KB Output is correct
30 Correct 105 ms 9964 KB Output is correct
31 Correct 68 ms 9836 KB Output is correct
32 Correct 69 ms 9952 KB Output is correct
33 Correct 77 ms 9836 KB Output is correct
34 Correct 76 ms 9964 KB Output is correct
35 Correct 76 ms 9836 KB Output is correct
36 Correct 76 ms 9836 KB Output is correct
37 Correct 63 ms 9836 KB Output is correct
38 Correct 68 ms 9836 KB Output is correct
39 Correct 91 ms 9964 KB Output is correct
40 Correct 93 ms 9964 KB Output is correct
41 Correct 93 ms 9964 KB Output is correct
42 Correct 84 ms 9964 KB Output is correct
43 Correct 84 ms 10092 KB Output is correct
44 Correct 78 ms 9964 KB Output is correct
45 Correct 75 ms 9964 KB Output is correct
46 Correct 74 ms 9964 KB Output is correct
47 Correct 76 ms 9964 KB Output is correct
48 Correct 76 ms 10092 KB Output is correct
49 Correct 76 ms 9964 KB Output is correct
50 Correct 74 ms 9964 KB Output is correct
51 Correct 73 ms 9964 KB Output is correct
52 Correct 77 ms 9856 KB Output is correct
53 Correct 71 ms 9964 KB Output is correct
54 Correct 75 ms 10092 KB Output is correct
55 Correct 78 ms 9836 KB Output is correct
56 Correct 43 ms 9836 KB Output is correct
57 Correct 105 ms 9964 KB Output is correct
58 Correct 44 ms 9836 KB Output is correct
59 Correct 44 ms 9964 KB Output is correct
60 Correct 106 ms 10092 KB Output is correct
61 Correct 43 ms 9836 KB Output is correct
62 Correct 108 ms 9964 KB Output is correct
63 Correct 63 ms 9936 KB Output is correct
64 Execution timed out 1580 ms 23472 KB Time limit exceeded
65 Halted 0 ms 0 KB -