제출 #311945

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
311945		htc001	기지국 (IOI20_stations)	C++14	컴파일 에러	0 ms	0 KiB

stations

#include<bits/stdc++.h>
using namespace std;

const int N=1005;
int tme,m;
vector<int> lab;
vector<int> nei[N];
map<int,int> mp;

void dfs(int x,int p,int lv){
	++tme;
	if(lv){
		lab[x-1]=tme;
		mp[tme];
	}
	for(int i=0;i<int(nei[x].size());i++){
		int to=nei[x][i];
		if(to!=p) dfs(to,x,lv^1);
	}
	++tme;
	if(!lv){
		lab[x-1]=tme;
		mp[tme];
	}
}

vector<int> label(int n,int k,vector<int> u,vector<int> v){
	memset(vl,0,sizeof(vl));
	mp.clear();
	lab.clear();
	lab.resize(n);
	tme=0;m=0;
	for(int i=1;i<=n;i++) nei[i].clear();
	for(int i=0;i<n-1;i++){
		u[i]++;v[i]++;
		nei[u[i]].push_back(v[i]);
		nei[v[i]].push_back(u[i]);
	}
	dfs(1,-1,0);
	for(map<int,int>::iterator it=mp.begin();it!=mp.end();it++) it->second=++m;
	for(int i=0;i<n;i++) lab[i]=mp[lab[i]];
	return lab;
}

int find_next_station(int s,int t,vector<int> c){
	sort(c.begin(),c.end());
	if(s<c[0]){
		if(t>s) return *lower_bound(c.begin(),c.end(),s);
		else return c[int(c.size())-1];
	}else{
		if(t<s) return *(lower_bound(c.begin(),c.end(),s+1)-1);
		else return c[0];
	}
}

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:28:9: error: 'vl' was not declared in this scope; did you mean 'v'?
   28 |  memset(vl,0,sizeof(vl));
      |         ^~
      |         v