oj.uz

Submission #634503

# Submission time Handle Problem Language Result Execution time Memory
634503 2022-08-24T13:30:09 Z inksamurai Poklon (COCI17_poklon7) C++17
114 / 120
 628 ms 262144 KB 
#include <bits/stdc++.h>
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{
		if(v==0) return "0";
		string s="";
		while(v>0){
			s+=(char)((v%2)+'0');
			v/=2;
		}
		reverse(s.begin(), s.end());
		return s;
	};
	vi cntr(n);
	vec(string) rbe(n);
	string s="";
	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;
		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";
		if(cntr[v]!=v){
			rbe[v].clear();
		}
	};
	dfs(dfs,0);
	print(rbe[cntr[0]]);
}

Subtask #1
114.0 / 120.0

# Verdict Execution time Memory Grader output
1 Correct 0 ms 212 KB Output is correct
2 Correct 0 ms 212 KB Output is correct
3 Correct 0 ms 212 KB Output is correct
4 Correct 0 ms 212 KB Output is correct
5 Correct 1 ms 212 KB Output is correct
6 Correct 1 ms 212 KB Output is correct
7 Correct 1 ms 212 KB Output is correct
8 Correct 1 ms 340 KB Output is correct
9 Correct 1 ms 340 KB Output is correct
10 Correct 1 ms 340 KB Output is correct
11 Correct 9 ms 2644 KB Output is correct
12 Correct 8 ms 2592 KB Output is correct
13 Correct 31 ms 12320 KB Output is correct
14 Correct 60 ms 24844 KB Output is correct
15 Correct 59 ms 13364 KB Output is correct
16 Correct 216 ms 72336 KB Output is correct
17 Correct 498 ms 161144 KB Output is correct
18 Correct 491 ms 171912 KB Output is correct
19 Correct 628 ms 171152 KB Output is correct
20 Runtime error 391 ms 262144 KB Execution killed with signal 9