oj.uz

Submission #963706

# Submission time Handle Problem Language Result Execution time Memory
963706 2024-04-15T14:01:22 Z Ivo_12 Paprike (COI18_paprike) C++
24 / 100
 47 ms 24340 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 < int > chivals;
	int 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 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 2 ms 6488 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6580 KB Output is correct
14 Correct 2 ms 6488 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6716 KB Output is correct
19 Correct 2 ms 6488 KB Output is correct
20 Correct 2 ms 6492 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 42 ms 24104 KB Output is correct
2 Correct 40 ms 24148 KB Output is correct
3 Correct 42 ms 24340 KB Output is correct
4 Correct 43 ms 24132 KB Output is correct
5 Correct 47 ms 24116 KB Output is correct
6 Correct 38 ms 24092 KB Output is correct
7 Correct 41 ms 24144 KB Output is correct
8 Correct 39 ms 23548 KB Output is correct

Subtask #3
0 / 27.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 2 ms 6488 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6580 KB Output is correct
14 Correct 2 ms 6488 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6716 KB Output is correct
19 Correct 2 ms 6488 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 2 ms 6744 KB Output is correct
23 Correct 4 ms 6744 KB Output is correct
24 Correct 4 ms 6748 KB Output is correct
25 Correct 2 ms 6744 KB Output is correct
26 Correct 2 ms 6748 KB Output is correct
27 Correct 2 ms 6580 KB Output is correct
28 Correct 2 ms 6748 KB Output is correct
29 Correct 3 ms 6748 KB Output is correct
30 Correct 2 ms 6744 KB Output is correct
31 Correct 2 ms 6748 KB Output is correct
32 Correct 3 ms 6748 KB Output is correct
33 Correct 3 ms 6748 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 3 ms 6748 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 2 ms 6748 KB Output is correct
38 Incorrect 2 ms 6748 KB Output isn't correct
39 Halted 0 ms 0 KB -

Subtask #4
0 / 49.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 6492 KB Output is correct
2 Correct 2 ms 6492 KB Output is correct
3 Correct 2 ms 6488 KB Output is correct
4 Correct 2 ms 6492 KB Output is correct
5 Correct 3 ms 6492 KB Output is correct
6 Correct 2 ms 6488 KB Output is correct
7 Correct 2 ms 6492 KB Output is correct
8 Correct 2 ms 6492 KB Output is correct
9 Correct 2 ms 6492 KB Output is correct
10 Correct 2 ms 6492 KB Output is correct
11 Correct 2 ms 6492 KB Output is correct
12 Correct 2 ms 6492 KB Output is correct
13 Correct 2 ms 6580 KB Output is correct
14 Correct 2 ms 6488 KB Output is correct
15 Correct 2 ms 6492 KB Output is correct
16 Correct 2 ms 6492 KB Output is correct
17 Correct 2 ms 6492 KB Output is correct
18 Correct 2 ms 6716 KB Output is correct
19 Correct 2 ms 6488 KB Output is correct
20 Correct 2 ms 6492 KB Output is correct
21 Correct 2 ms 6492 KB Output is correct
22 Correct 42 ms 24104 KB Output is correct
23 Correct 40 ms 24148 KB Output is correct
24 Correct 42 ms 24340 KB Output is correct
25 Correct 43 ms 24132 KB Output is correct
26 Correct 47 ms 24116 KB Output is correct
27 Correct 38 ms 24092 KB Output is correct
28 Correct 41 ms 24144 KB Output is correct
29 Correct 39 ms 23548 KB Output is correct
30 Correct 2 ms 6744 KB Output is correct
31 Correct 4 ms 6744 KB Output is correct
32 Correct 4 ms 6748 KB Output is correct
33 Correct 2 ms 6744 KB Output is correct
34 Correct 2 ms 6748 KB Output is correct
35 Correct 2 ms 6580 KB Output is correct
36 Correct 2 ms 6748 KB Output is correct
37 Correct 3 ms 6748 KB Output is correct
38 Correct 2 ms 6744 KB Output is correct
39 Correct 2 ms 6748 KB Output is correct
40 Correct 3 ms 6748 KB Output is correct
41 Correct 3 ms 6748 KB Output is correct
42 Correct 2 ms 6748 KB Output is correct
43 Correct 3 ms 6748 KB Output is correct
44 Correct 2 ms 6748 KB Output is correct
45 Correct 2 ms 6748 KB Output is correct
46 Incorrect 2 ms 6748 KB Output isn't correct
47 Halted 0 ms 0 KB -