| # |
Submission time |
Handle |
Problem |
Language |
Result |
Execution time |
Memory |
| 57738 |
2018-07-16T00:57:13 Z |
Benq |
Paprike (COI18_paprike) |
C++14 |
|
170 ms |
43648 KB |
#include <bits/stdc++.h>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/assoc_container.hpp>
using namespace std;
using namespace __gnu_pbds;
typedef long long ll;
typedef long double ld;
typedef complex<ld> cd;
typedef pair<int, int> pi;
typedef pair<ll,ll> pl;
typedef pair<ld,ld> pd;
typedef vector<int> vi;
typedef vector<ld> vd;
typedef vector<ll> vl;
typedef vector<pi> vpi;
typedef vector<pl> vpl;
typedef vector<cd> vcd;
template <class T> using Tree = tree<T, null_type, less<T>, rb_tree_tag,tree_order_statistics_node_update>;
#define FOR(i, a, b) for (int i=a; i<(b); i++)
#define F0R(i, a) for (int i=0; i<(a); i++)
#define FORd(i,a,b) for (int i = (b)-1; i >= a; i--)
#define F0Rd(i,a) for (int i = (a)-1; i >= 0; i--)
#define sz(x) (int)(x).size()
#define mp make_pair
#define pb push_back
#define f first
#define s second
#define lb lower_bound
#define ub upper_bound
#define all(x) x.begin(), x.end()
const int MOD = 1000000007;
const ll INF = 1e18;
const int MX = 100001;
int n,k,h[MX];
vi adj[MX];
pi dfs(int x, int y = 0) {
pi ret = {h[x],0};
vi v;
for (int i: adj[x]) if (i != y) {
pi a = dfs(i,x);
ret.s += a.s;
v.pb(a.f);
}
sort(all(v)); reverse(all(v));
while (sz(v) && ret.f+v.back() <= k) {
ret.f += v.back(); v.pop_back();
}
ret.s += sz(v);
return ret;
}
int main() {
ios_base::sync_with_stdio(0); cin.tie(0);
cin >> n >> k;
FOR(i,1,n+1) cin >> h[i];
F0R(i,n-1) {
int a,b; cin >> a >> b;
adj[a].pb(b), adj[b].pb(a);
}
pi x = dfs(1);
if (x.f) x.s ++;
cout << x.s-1;
}
/* Look for:
* the exact constraints (multiple sets are too slow for n=10^6 :( )
* special cases (n=1?)
* overflow (ll vs int?)
* array bounds
*/
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 5 |
Correct |
7 ms |
2844 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2844 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2928 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 13 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 17 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 18 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 19 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 21 |
Correct |
6 ms |
3164 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
116 ms |
19712 KB |
Output is correct |
| 2 |
Correct |
109 ms |
21664 KB |
Output is correct |
| 3 |
Correct |
114 ms |
23624 KB |
Output is correct |
| 4 |
Correct |
101 ms |
25656 KB |
Output is correct |
| 5 |
Correct |
94 ms |
27524 KB |
Output is correct |
| 6 |
Correct |
105 ms |
29532 KB |
Output is correct |
| 7 |
Correct |
103 ms |
31500 KB |
Output is correct |
| 8 |
Correct |
88 ms |
32864 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 5 |
Correct |
7 ms |
2844 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2844 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2928 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 13 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 17 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 18 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 19 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 21 |
Correct |
6 ms |
3164 KB |
Output is correct |
| 22 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 23 |
Correct |
8 ms |
32864 KB |
Output is correct |
| 24 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 25 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 26 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 27 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 28 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 29 |
Correct |
8 ms |
32864 KB |
Output is correct |
| 30 |
Correct |
4 ms |
32864 KB |
Output is correct |
| 31 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 32 |
Correct |
5 ms |
32864 KB |
Output is correct |
| 33 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 34 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 35 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 36 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 37 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 38 |
Correct |
6 ms |
32864 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
4 ms |
2680 KB |
Output is correct |
| 2 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 3 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 4 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 5 |
Correct |
7 ms |
2844 KB |
Output is correct |
| 6 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 7 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 8 |
Correct |
3 ms |
2844 KB |
Output is correct |
| 9 |
Correct |
4 ms |
2844 KB |
Output is correct |
| 10 |
Correct |
4 ms |
2928 KB |
Output is correct |
| 11 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 12 |
Correct |
4 ms |
3024 KB |
Output is correct |
| 13 |
Correct |
6 ms |
3024 KB |
Output is correct |
| 14 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 15 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 16 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 17 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 18 |
Correct |
4 ms |
3088 KB |
Output is correct |
| 19 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 20 |
Correct |
4 ms |
3164 KB |
Output is correct |
| 21 |
Correct |
6 ms |
3164 KB |
Output is correct |
| 22 |
Correct |
116 ms |
19712 KB |
Output is correct |
| 23 |
Correct |
109 ms |
21664 KB |
Output is correct |
| 24 |
Correct |
114 ms |
23624 KB |
Output is correct |
| 25 |
Correct |
101 ms |
25656 KB |
Output is correct |
| 26 |
Correct |
94 ms |
27524 KB |
Output is correct |
| 27 |
Correct |
105 ms |
29532 KB |
Output is correct |
| 28 |
Correct |
103 ms |
31500 KB |
Output is correct |
| 29 |
Correct |
88 ms |
32864 KB |
Output is correct |
| 30 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 31 |
Correct |
8 ms |
32864 KB |
Output is correct |
| 32 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 33 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 34 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 35 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 36 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 37 |
Correct |
8 ms |
32864 KB |
Output is correct |
| 38 |
Correct |
4 ms |
32864 KB |
Output is correct |
| 39 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 40 |
Correct |
5 ms |
32864 KB |
Output is correct |
| 41 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 42 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 43 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 44 |
Correct |
7 ms |
32864 KB |
Output is correct |
| 45 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 46 |
Correct |
6 ms |
32864 KB |
Output is correct |
| 47 |
Correct |
119 ms |
32864 KB |
Output is correct |
| 48 |
Correct |
95 ms |
32864 KB |
Output is correct |
| 49 |
Correct |
127 ms |
32864 KB |
Output is correct |
| 50 |
Correct |
96 ms |
32864 KB |
Output is correct |
| 51 |
Correct |
142 ms |
32864 KB |
Output is correct |
| 52 |
Correct |
152 ms |
34276 KB |
Output is correct |
| 53 |
Correct |
170 ms |
36124 KB |
Output is correct |
| 54 |
Correct |
151 ms |
38120 KB |
Output is correct |
| 55 |
Correct |
128 ms |
39420 KB |
Output is correct |
| 56 |
Correct |
153 ms |
40964 KB |
Output is correct |
| 57 |
Correct |
91 ms |
43648 KB |
Output is correct |
