#include <bits/stdc++.h>
#define int ll
using namespace std;
#define rep(i,n) for(int i=0;i<n;i++)
#define rng(i,c,n) for(int i=c;i<n;i++)
#define per(i,n) for(int i=n-1;i>=0;i--)
#define fi first
#define se second
#define pb push_back
#define sz(a) (int)a.size()
#define vec(...) vector<__VA_ARGS__>
#define _3PGDklf ios::sync_with_stdio(0),cin.tie(0)
typedef long long ll;
using pii=pair<int,int>;
using vi=vector<int>;
void print(){cout<<'\n';}
template<class h,class...t>
void print(const h&v,const t&...u){cout<<v<<' ',print(u...);}
// e
signed main(){
_3PGDklf;
int n;
cin>>n;
vec(vi) adj(n);
rep(i,n){
int ul,ur;
cin>>ul>>ur;
adj[i].pb(ul);
adj[i].pb(ur);
}
auto bintostr=[&](int v){
string s="";
if(v==0) return s="0";
while(v){
s+=(char)(v%2+'0');
v/=2;
}
reverse(s.begin(), s.end());
return s;
};
vi cntr(n);
vec(string) rbe(n);
auto dfs=[&](auto self,int v)->void{
int ma=-1;
rep(i,sz(adj[v])){
int u=adj[v][i];
if(i==0){
if(u>0){
self(self,u-1);
}else{
ma=max(ma,-u);
}
}else{
if(u>0){
self(self,u-1);
}else{
ma=max(ma,-u);
}
}
}
cntr[v]=v;
if(ma>=0) rbe[v]=bintostr(ma);
int ul=cntr[adj[v][0]<=0?v:adj[v][0]-1];
int ur=cntr[adj[v][1]<=0?v:adj[v][1]-1];
cntr[v]=ul;
if(sz(rbe[ul])<sz(rbe[ur]) or (sz(rbe[ul])==sz(rbe[ur]) and rbe[ul]<rbe[ur])){
cntr[v]=ur;
}
// rbe[cntr[v]]+="0";
};
dfs(dfs,0);
print(rbe[cntr[0]]);
}
# |
Verdict |
Execution time |
Memory |
Grader output |
1 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
2 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
3 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
4 |
Incorrect |
1 ms |
212 KB |
Output isn't correct |
5 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
6 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
7 |
Incorrect |
0 ms |
212 KB |
Output isn't correct |
8 |
Incorrect |
0 ms |
340 KB |
Output isn't correct |
9 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
10 |
Incorrect |
1 ms |
340 KB |
Output isn't correct |
11 |
Incorrect |
6 ms |
2644 KB |
Output isn't correct |
12 |
Incorrect |
8 ms |
2644 KB |
Output isn't correct |
13 |
Incorrect |
30 ms |
12204 KB |
Output isn't correct |
14 |
Incorrect |
56 ms |
24524 KB |
Output isn't correct |
15 |
Incorrect |
53 ms |
13024 KB |
Output isn't correct |
16 |
Incorrect |
188 ms |
71240 KB |
Output isn't correct |
17 |
Incorrect |
446 ms |
158668 KB |
Output isn't correct |
18 |
Incorrect |
447 ms |
169420 KB |
Output isn't correct |
19 |
Incorrect |
551 ms |
168140 KB |
Output isn't correct |
20 |
Runtime error |
327 ms |
262144 KB |
Execution killed with signal 9 |