Submission #68221

# Submission time Handle Problem Language Result Execution time Memory
68221 2018-08-16T09:00:19 Z Nordway Paprike (COI18_paprike) C++14
24 / 100
221 ms 31900 KB
#include<bits/stdc++.h>

#define x first
#define y second
#define pb push_back
#define mp make_pair
#define in insert
#define up_b upper_bound
#define low_b lower_bound
#define sz(x) (int)x.size()
#define all(v) v.begin(),v.end()

using namespace std;

typedef long long ll;
typedef long double ld;
typedef pair<int,int> pii;
typedef pair<int,ll> pil;
typedef pair<ll,int> pli;
typedef pair<ll,ll> pll;

const ll INF = 1e18;
const int inf = INT_MAX;
const ll mod = 1e9 + 7;
const int dx[4] = {0, 0, 1, -1};
const int dy[4] = {1, -1, 0, 0};
const int N = 1e5 + 5;
const int A = 26;

int n, k, ans, a[N], d[N];
vector < int > g[N];

void dfs(int v, int p){
	vector < int > val;
	d[v] = a[v];
	for(int i = 0; i < sz(g[v]); i++){
		int to = g[v][i];
		if(to != p){
			dfs(to, v);
			d[v] += d[to];
			val.pb(d[to]);
		}
	}
	sort(all(val));
	reverse(all(val));
	for(int i = 0; i < sz(val); i++){
		if(d[v] > k){
			d[v] -= val[i];
			ans++;
		}
		else break;
	}
}

int main(){
	
	cin >> n >> k;
	for(int i = 1; i <= n; i++){
		cin >> a[i];
	}
	for(int i = 1; i < n; i++){
		int u, v;
		cin >> u >> v;
		g[u].pb(v);
		g[v].pb(u);
	} 
	dfs(1, 0);
	cout << ans;
}
# Verdict Execution time Memory Grader output
1 Correct 6 ms 2808 KB Output is correct
2 Correct 5 ms 2808 KB Output is correct
3 Correct 5 ms 2812 KB Output is correct
4 Correct 7 ms 2896 KB Output is correct
5 Correct 5 ms 2896 KB Output is correct
6 Correct 4 ms 2896 KB Output is correct
7 Correct 6 ms 2964 KB Output is correct
8 Correct 5 ms 2964 KB Output is correct
9 Correct 5 ms 2964 KB Output is correct
10 Correct 5 ms 2964 KB Output is correct
11 Correct 6 ms 3004 KB Output is correct
12 Correct 7 ms 3004 KB Output is correct
13 Correct 6 ms 3004 KB Output is correct
14 Correct 5 ms 3004 KB Output is correct
15 Correct 6 ms 3108 KB Output is correct
16 Correct 7 ms 3108 KB Output is correct
17 Correct 5 ms 3108 KB Output is correct
18 Correct 7 ms 3132 KB Output is correct
19 Correct 5 ms 3132 KB Output is correct
20 Correct 5 ms 3132 KB Output is correct
21 Correct 4 ms 3132 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 221 ms 18704 KB Output is correct
2 Correct 214 ms 20652 KB Output is correct
3 Correct 197 ms 22632 KB Output is correct
4 Correct 169 ms 24512 KB Output is correct
5 Correct 216 ms 26524 KB Output is correct
6 Correct 171 ms 28428 KB Output is correct
7 Correct 179 ms 30360 KB Output is correct
8 Correct 188 ms 31900 KB Output is correct
# Verdict Execution time Memory Grader output
1 Correct 6 ms 2808 KB Output is correct
2 Correct 5 ms 2808 KB Output is correct
3 Correct 5 ms 2812 KB Output is correct
4 Correct 7 ms 2896 KB Output is correct
5 Correct 5 ms 2896 KB Output is correct
6 Correct 4 ms 2896 KB Output is correct
7 Correct 6 ms 2964 KB Output is correct
8 Correct 5 ms 2964 KB Output is correct
9 Correct 5 ms 2964 KB Output is correct
10 Correct 5 ms 2964 KB Output is correct
11 Correct 6 ms 3004 KB Output is correct
12 Correct 7 ms 3004 KB Output is correct
13 Correct 6 ms 3004 KB Output is correct
14 Correct 5 ms 3004 KB Output is correct
15 Correct 6 ms 3108 KB Output is correct
16 Correct 7 ms 3108 KB Output is correct
17 Correct 5 ms 3108 KB Output is correct
18 Correct 7 ms 3132 KB Output is correct
19 Correct 5 ms 3132 KB Output is correct
20 Correct 5 ms 3132 KB Output is correct
21 Correct 4 ms 3132 KB Output is correct
22 Correct 8 ms 31900 KB Output is correct
23 Correct 7 ms 31900 KB Output is correct
24 Correct 6 ms 31900 KB Output is correct
25 Correct 7 ms 31900 KB Output is correct
26 Correct 8 ms 31900 KB Output is correct
27 Correct 8 ms 31900 KB Output is correct
28 Correct 7 ms 31900 KB Output is correct
29 Correct 7 ms 31900 KB Output is correct
30 Correct 7 ms 31900 KB Output is correct
31 Correct 8 ms 31900 KB Output is correct
32 Correct 7 ms 31900 KB Output is correct
33 Correct 6 ms 31900 KB Output is correct
34 Correct 7 ms 31900 KB Output is correct
35 Correct 6 ms 31900 KB Output is correct
36 Correct 8 ms 31900 KB Output is correct
37 Correct 7 ms 31900 KB Output is correct
38 Incorrect 7 ms 31900 KB Output isn't correct
# Verdict Execution time Memory Grader output
1 Correct 6 ms 2808 KB Output is correct
2 Correct 5 ms 2808 KB Output is correct
3 Correct 5 ms 2812 KB Output is correct
4 Correct 7 ms 2896 KB Output is correct
5 Correct 5 ms 2896 KB Output is correct
6 Correct 4 ms 2896 KB Output is correct
7 Correct 6 ms 2964 KB Output is correct
8 Correct 5 ms 2964 KB Output is correct
9 Correct 5 ms 2964 KB Output is correct
10 Correct 5 ms 2964 KB Output is correct
11 Correct 6 ms 3004 KB Output is correct
12 Correct 7 ms 3004 KB Output is correct
13 Correct 6 ms 3004 KB Output is correct
14 Correct 5 ms 3004 KB Output is correct
15 Correct 6 ms 3108 KB Output is correct
16 Correct 7 ms 3108 KB Output is correct
17 Correct 5 ms 3108 KB Output is correct
18 Correct 7 ms 3132 KB Output is correct
19 Correct 5 ms 3132 KB Output is correct
20 Correct 5 ms 3132 KB Output is correct
21 Correct 4 ms 3132 KB Output is correct
22 Correct 221 ms 18704 KB Output is correct
23 Correct 214 ms 20652 KB Output is correct
24 Correct 197 ms 22632 KB Output is correct
25 Correct 169 ms 24512 KB Output is correct
26 Correct 216 ms 26524 KB Output is correct
27 Correct 171 ms 28428 KB Output is correct
28 Correct 179 ms 30360 KB Output is correct
29 Correct 188 ms 31900 KB Output is correct
30 Correct 8 ms 31900 KB Output is correct
31 Correct 7 ms 31900 KB Output is correct
32 Correct 6 ms 31900 KB Output is correct
33 Correct 7 ms 31900 KB Output is correct
34 Correct 8 ms 31900 KB Output is correct
35 Correct 8 ms 31900 KB Output is correct
36 Correct 7 ms 31900 KB Output is correct
37 Correct 7 ms 31900 KB Output is correct
38 Correct 7 ms 31900 KB Output is correct
39 Correct 8 ms 31900 KB Output is correct
40 Correct 7 ms 31900 KB Output is correct
41 Correct 6 ms 31900 KB Output is correct
42 Correct 7 ms 31900 KB Output is correct
43 Correct 6 ms 31900 KB Output is correct
44 Correct 8 ms 31900 KB Output is correct
45 Correct 7 ms 31900 KB Output is correct
46 Incorrect 7 ms 31900 KB Output isn't correct