답안 #634466

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
634466	2022-08-24T13:03:06 Z	inksamurai	Poklon (COCI17_poklon7)	C++17	72 / 120	1000 ms	262144 KB

poklon

#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="";
		while(v){
			s+=(char)(v%2+'0');
			v/=2;
		}
		reverse(s.begin(), s.end());
		return s;
	};
	auto sub=[&](string a,string b){
		int car=0;
		string tmp="";
		int j=sz(b)-1;
		per(i,sz(a)){
			int v=a[i]-'0';
			int u=(j<0?0:b[j]-'0');
			v-=u;
			v-=car;
			if(v<0){
				v=1;
				car=1;
			}else{
				car=0;
			}
			tmp.pb((char)(v+'0'));
			j-=1;
		}
		while(sz(tmp) and tmp.back()=='0'){
			tmp.pop_back();
		}
		reverse(tmp.begin(), tmp.end());
		return tmp;
	};
	auto dfs=[&](auto&self,int v)->pair<int,string>{
		pair<int,string> sl,sr;
		rep(i,sz(adj[v])){
			int u=adj[v][i];
			if(i==0){
				if(u>0){
					sl=self(self,u-1);
				}else{
					sl={0,bintostr(-u)};
				}
			}else{
				if(u>0){
					sr=self(self,u-1);
				}else{
					sr={0,bintostr(-u)};
				}
			}
		}
		if(sz(sl.se)<sz(sr.se) or (sz(sl.se)==sz(sr.se) and sl.se<sr.se)){
			swap(sl,sr);
		}
		// print(v,sl.se,sr.se);
		string tmp=sub(sl.se,sr.se);
		int cnt=0;
		per(i,sz(tmp)){
			if(tmp[i]=='1'){
				break;
			}
			cnt+=1;
		}
		if(cnt!=sz(tmp)){
			rep(_,sr.fi-cnt){
				sl.se+="0";
			}
		}
		sl.fi=max(sl.fi,sr.fi)+1;
		sl.se+="0";
		// if(v==1) print(sl.se);
		return sl;
	};
	pair<int,string> res=dfs(dfs,0);
	print(res.se);
}

Subtask #1

72.0 / 120.0

#	결과	실행 시간	메모리	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	Incorrect	0 ms	212 KB	Output isn't correct
6	Correct	0 ms	212 KB	Output is correct
7	Correct	0 ms	212 KB	Output is correct
8	Correct	0 ms	212 KB	Output is correct
9	Correct	2 ms	408 KB	Output is correct
10	Correct	1 ms	340 KB	Output is correct
11	Correct	83 ms	2704 KB	Output is correct
12	Correct	51 ms	2372 KB	Output is correct
13	Execution timed out	1092 ms	13024 KB	Time limit exceeded
14	Execution timed out	1095 ms	26492 KB	Time limit exceeded
15	Correct	96 ms	5716 KB	Output is correct
16	Execution timed out	1103 ms	68812 KB	Time limit exceeded
17	Execution timed out	1087 ms	146424 KB	Time limit exceeded
18	Execution timed out	1098 ms	164196 KB	Time limit exceeded
19	Execution timed out	1091 ms	126248 KB	Time limit exceeded
20	Runtime error	339 ms	262144 KB	Execution killed with signal 9