Submission #256652

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
256652	2020-08-03 05:04:28	nandonathaniel	Tax Evasion (LMIO19_mokesciai)	C++14	100 / 100	362 ms	46944 KiB

mokesciai

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#include<bits/stdc++.h>
using namespace std;
const int MAXN=200005,LOG=18;
vector<int> adj[MAXN],que[MAXN];
int pa[LOG][MAXN],depth[MAXN],ST[MAXN],EN[MAXN],preorder[MAXN],idx;
bool coin[MAXN];
int anc(int u,int naik){
  for(int i=LOG-1;i>=0;i--){
    if(naik&(1<<i))u=pa[i][u];
  }
  return u;
}
void dfs(int now){
  idx++;
  ST[now]=idx;
  preorder[idx]=now;
  for(auto nxt : adj[now])dfs(nxt); 
  EN[now]=idx;
}
int main(){
  ios_base::sync_with_stdio(false);cin.tie(NULL);cout.tie(NULL);
  int n,m,p,a;
  cin >> n >> m;
  for(int i=2;i<=n;i++){
    cin >> p;
    adj[p].push_back(i);
 
 
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
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Compilation message (stderr)

mokesciai.cpp: In function 'int main()':
mokesciai.cpp:68:19: warning: 'res' may be used uninitialized in this function [-Wmaybe-uninitialized]
  cout << res+1 << '\n';
                   ^~~~

• Subtask 1: 10 / 10
• Subtask 2: 22 / 22
• Subtask 3: 39 / 39
• Subtask 4: 29 / 29