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Submission #963709

# Submission time Handle Problem Language Result Execution time Memory
963709 2024-04-15T14:03:09 Z Ivo_12 Paprike (COI18_paprike) C++
100 / 100
 57 ms 23632 KB 
#include <bits/stdc++.h>
#define ll long long
#define pb push_back

using namespace std;

struct node {
	vector < int > chi;
	int par = -1;
	ll val = 0;
};

const int N = 100010;
node tree[N];
int n;
int k;
vector < int > edges[N];
int sol;

void dfs( int pos ) {
	for(int i = 0; i < edges[pos].size(); i++) {
		if(edges[pos][i]!=tree[pos].par) {
			tree[edges[pos][i]].par=pos;
			tree[pos].chi.pb(edges[pos][i]);
			dfs(edges[pos][i]);
		}
	}
}

ll sumover( int pos ) {
	vector < ll > chivals;
	ll total = tree[pos].val;
	for(int i = 0; i < tree[pos].chi.size(); i++) {
		chivals.pb(sumover(tree[pos].chi[i]));
		total+=chivals[i];
	}
	sort(chivals.begin(), chivals.end());
	while(total>k) {
		total-=(*--chivals.end());
		chivals.pop_back();
		sol++;
	}
	return total;
}

int main ( void ) {

	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	cin >> n >> k;
	for(int i = 0; i < n; i++) {
		cin >> tree[i].val;
	}
	int a, b;
	for(int i = 0; i < n-1; i++) {
			cin >> a >> b;
			edges[--a].pb(--b);
			edges[b].pb(a);
	}
	dfs(0);
	sumover(0);
	cout << sol;

	return 0;
}

Compilation message

paprike.cpp: In function 'void dfs(int)':
paprike.cpp:21:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   21 |  for(int i = 0; i < edges[pos].size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~
paprike.cpp: In function 'long long int sumover(int)':
paprike.cpp:33:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |  for(int i = 0; i < tree[pos].chi.size(); i++) {
      |                 ~~^~~~~~~~~~~~~~~~~~~~~~

Subtask #1
11.0 / 11.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6608 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 3 ms 6492 KB Output is correct
8 Correct 3 ms 6488 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 2 ms 6488 KB Output is correct
13 Correct 2 ms 6488 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6488 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct

Subtask #2
13.0 / 13.0

# Verdict Execution time Memory Grader output
1 Correct 51 ms 23524 KB Output is correct
2 Correct 48 ms 23524 KB Output is correct
3 Correct 43 ms 23632 KB Output is correct
4 Correct 41 ms 23376 KB Output is correct
5 Correct 41 ms 23376 KB Output is correct
6 Correct 43 ms 23632 KB Output is correct
7 Correct 45 ms 23380 KB Output is correct
8 Correct 38 ms 23140 KB Output is correct

Subtask #3
27.0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6608 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 3 ms 6492 KB Output is correct
8 Correct 3 ms 6488 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 2 ms 6488 KB Output is correct
13 Correct 2 ms 6488 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6488 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 2 ms 6744 KB Output is correct
23 Correct 2 ms 6748 KB Output is correct
24 Correct 2 ms 6748 KB Output is correct
25 Correct 2 ms 6736 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6748 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 3 ms 6748 KB Output is correct
30 Correct 3 ms 6784 KB Output is correct
31 Correct 2 ms 6744 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 3 ms 6748 KB Output is correct
34 Correct 2 ms 6744 KB Output is correct
35 Correct 3 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 3 ms 6744 KB Output is correct
38 Correct 3 ms 6748 KB Output is correct

Subtask #4
49.0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 3 ms 6488 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 3 ms 6608 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 2 ms 6492 KB Output is correct
6 Correct 2 ms 6492 KB Output is correct
7 Correct 3 ms 6492 KB Output is correct
8 Correct 3 ms 6488 KB Output is correct
9 Correct 3 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 3 ms 6492 KB Output is correct
12 Correct 2 ms 6488 KB Output is correct
13 Correct 2 ms 6488 KB Output is correct
14 Correct 3 ms 6492 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 3 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6492 KB Output is correct
19 Correct 2 ms 6492 KB Output is correct
20 Correct 2 ms 6488 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 51 ms 23524 KB Output is correct
23 Correct 48 ms 23524 KB Output is correct
24 Correct 43 ms 23632 KB Output is correct
25 Correct 41 ms 23376 KB Output is correct
26 Correct 41 ms 23376 KB Output is correct
27 Correct 43 ms 23632 KB Output is correct
28 Correct 45 ms 23380 KB Output is correct
29 Correct 38 ms 23140 KB Output is correct
30 Correct 2 ms 6744 KB Output is correct
31 Correct 2 ms 6748 KB Output is correct
32 Correct 2 ms 6748 KB Output is correct
33 Correct 2 ms 6736 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 2 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 3 ms 6748 KB Output is correct
38 Correct 3 ms 6784 KB Output is correct
39 Correct 2 ms 6744 KB Output is correct
40 Correct 2 ms 6748 KB Output is correct
41 Correct 3 ms 6748 KB Output is correct
42 Correct 2 ms 6744 KB Output is correct
43 Correct 3 ms 6748 KB Output is correct
44 Correct 2 ms 6748 KB Output is correct
45 Correct 3 ms 6744 KB Output is correct
46 Correct 3 ms 6748 KB Output is correct
47 Correct 44 ms 17288 KB Output is correct
48 Correct 41 ms 15696 KB Output is correct
49 Correct 51 ms 15252 KB Output is correct
50 Correct 47 ms 14804 KB Output is correct
51 Correct 47 ms 13396 KB Output is correct
52 Correct 44 ms 13404 KB Output is correct
53 Correct 45 ms 13452 KB Output is correct
54 Correct 57 ms 13392 KB Output is correct
55 Correct 46 ms 12808 KB Output is correct
56 Correct 55 ms 12828 KB Output is correct
57 Correct 34 ms 13356 KB Output is correct