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Submission #240936

# Submission time Handle Problem Language Result Execution time Memory
240936 2020-06-21T15:07:04 Z DavidDamian Deblo (COCI18_deblo) C++11
45 / 90
 1000 ms 14712 KB 
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
///Subtask 2
///DFS from all nodes
int n;
ll A[100005];
ll total=0;
vector<int> adjList[100005];
ll dfs(int u,int e,ll Xor)
{
    ll sum=Xor;
    for(int v: adjList[u]){
        if(v==e) continue;
        sum+=dfs(v,u,Xor^A[v]);
    }
    return sum;
}
int main()
{
    ios_base::sync_with_stdio(0);cin.tie(0);
    cin>>n;
    for(int i=1;i<=n;i++){
        cin>>A[i];
        total+=A[i];
    }
    for(int i=1;i<=n-1;i++){
        int a,b;
        cin>>a>>b;
        adjList[a].push_back(b);
        adjList[b].push_back(a);
    }
    for(int i=1;i<=n;i++){
        total+=dfs(i,0,A[i]);
    }
    total/=2;
    cout<<total<<'\n';
    return 0;
}

Subtask #1
45.0 / 90.0

# Verdict Execution time Memory Grader output
1 Correct 6 ms 2688 KB Output is correct
2 Correct 6 ms 2688 KB Output is correct
3 Correct 6 ms 2688 KB Output is correct
4 Correct 16 ms 2816 KB Output is correct
5 Correct 18 ms 2816 KB Output is correct
6 Execution timed out 1066 ms 14712 KB Time limit exceeded
7 Execution timed out 1096 ms 14712 KB Time limit exceeded
8 Execution timed out 1088 ms 9720 KB Time limit exceeded
9 Execution timed out 1095 ms 9080 KB Time limit exceeded
10 Execution timed out 1092 ms 8568 KB Time limit exceeded