Submission #778649

#	Submission time	Handle	Problem	Language	Result	Execution time	Memory
778649	2023-07-10T14:14:32 Z	vjudge1	Deblo (COCI18_deblo)	C++17	45 / 90	1000 ms	14476 KB

deblo

#include<iostream>
#include <vector>
#include <bitset>
using namespace std;
#pragma GCC target ("avx2")
#pragma GCC optimization ("O3")
#pragma GCC optimization ("unroll-loops")
#define lalala ios_base::sync_with_stdio(false);cin.tie(NULL);
#define endl "\n"
#define ll long long
#define pb push_back
#define N 100001
int arr[N];
vector<int> adj[N];
bitset<100001>isaret;
ll int dfs(int x,int once,int prevgel){
	ll int topla=0;
	if(isaret[x]==0)topla=prevgel^arr[x];
	for(auto u:adj[x]){
		if(u==once) continue;
		topla+=dfs(u,x,prevgel^arr[x]);
	}
	return topla;
}

vector<int> yol;
void uff(int x,int once){
	for(auto u:adj[x]){
		if(u!=once)uff(u,x);
	}
	yol.pb(x);
}
int main(){
	lalala;
	int n;cin>>n;
	for(int i=1;i<=n;i++)cin>>arr[i];
	for(int i=0;i<n-1;i++){
		int a,b;cin>>a>>b;
		adj[a].pb(b);
		adj[b].pb(a);
	}
	uff(1,0);
	ll int cev=0;
	for(int i=yol.size()-1;i>-1;i--){
		cev+=dfs(yol[i],-1,0);
		isaret[yol[i]]=1;
	}
	cout<<cev<<"\n";
}

Compilation message

deblo.cpp:6: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    6 | #pragma GCC optimization ("O3")
      | 
deblo.cpp:7: warning: ignoring '#pragma GCC optimization' [-Wunknown-pragmas]
    7 | #pragma GCC optimization ("unroll-loops")
      |

Subtask #1

45.0 / 90.0

#	Verdict	Execution time	Memory	Grader output
1	Correct	1 ms	2644 KB	Output is correct
2	Correct	2 ms	2660 KB	Output is correct
3	Correct	1 ms	2644 KB	Output is correct
4	Correct	7 ms	2644 KB	Output is correct
5	Correct	10 ms	2720 KB	Output is correct
6	Execution timed out	1078 ms	14476 KB	Time limit exceeded
7	Execution timed out	1033 ms	14404 KB	Time limit exceeded
8	Execution timed out	1072 ms	8152 KB	Time limit exceeded
9	Execution timed out	1088 ms	7480 KB	Time limit exceeded
10	Execution timed out	1077 ms	6856 KB	Time limit exceeded