Submission #315708

#	Time	Username	Problem	Language	Result	Execution time	Memory
315708		ahmet	Pastiri (COI20_pastiri)	C++14	8 / 100	406 ms	67684 KiB

pastiri

#include <bits/stdc++.h>
using namespace std;
#define ll long long
#define rep(i,n) for(long long (i)=0;(i)<(n);++(i))
#define ref(i,a,b) for (long long (i)=(a); (i)<=(b); ++(i))
#define endl '\n'
#define st first
#define nd second
#define pb push_back
#define mp make_pair
const int mx=2e6+5;
int n,k;
vector <int> v[mx];
vector <int> a;
int main(){
	ios_base::sync_with_stdio(false);cin.tie(0);
	/*freopen(".in", "r", stdin);
	freopen(".out", "w", stdout); 
    */
	cin >> n >> k;
	rep(i,n-1){
		int x,y;cin >> x >> y;
		v[x].push_back(y);
		v[y].push_back(x);
	}
	rep(i,k){
		int x;cin >> x;
		a.pb(x);
	}
	sort(a.begin(),a.end());
	vector <int> ans;
	for(int i=0;i<a.size();++i){
		if(i==a.size()-1){
			ans.pb(a[i]);
			continue;
		}
		int d=a[i+1]-a[i];
		if(d%2==0){
			ans.pb(a[i]+d/2);
			++i;
			continue;
		}
		ans.pb(a[i]);
	}
	cout << ans.size() << endl;
	for(int i=0;i<ans.size();++i){
		cout << ans[i] << " ";
	}





	
}
	

Compilation message (stderr)

pastiri.cpp: In function 'int main()':
pastiri.cpp:4:32: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    4 | #define rep(i,n) for(long long (i)=0;(i)<(n);++(i))
      |                                ^
pastiri.cpp:21:2: note: in expansion of macro 'rep'
   21 |  rep(i,n-1){
      |  ^~~
pastiri.cpp:4:32: warning: unnecessary parentheses in declaration of 'i' [-Wparentheses]
    4 | #define rep(i,n) for(long long (i)=0;(i)<(n);++(i))
      |                                ^
pastiri.cpp:26:2: note: in expansion of macro 'rep'
   26 |  rep(i,k){
      |  ^~~
pastiri.cpp:32:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |  for(int i=0;i<a.size();++i){
      |              ~^~~~~~~~~
pastiri.cpp:33:7: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   33 |   if(i==a.size()-1){
      |      ~^~~~~~~~~~~~
pastiri.cpp:46:15: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |  for(int i=0;i<ans.size();++i){
      |              ~^~~~~~~~~~~

• Subtask 1: 8 / 8
• Subtask 2: 0 / 18
• Subtask 3: 0 / 23
• Subtask 4: 0 / 51