結果

問題 No.277 根掘り葉掘り
ユーザー is_eri23is_eri23
提出日時 2015-09-06 11:10:06
言語 C++11
(gcc 13.3.0)
結果
AC  
実行時間 52 ms / 3,000 ms
コード長 2,716 bytes
コンパイル時間 1,101 ms
コンパイル使用メモリ 161,956 KB
実行使用メモリ 15,828 KB
最終ジャッジ日時 2024-07-19 04:21:16
合計ジャッジ時間 2,602 ms
ジャッジサーバーID
(参考情報)
judge3 / judge1
このコードへのチャレンジ
(要ログイン)
ファイルパターン 結果
sample AC * 2
other AC * 18
権限があれば一括ダウンロードができます

ソースコード

diff #
プレゼンテーションモードにする

#include <bits/stdc++.h>
#define EPS 1e-9
#define INF 1070000000LL
#define MOD 1000000007LL
#define fir first
#define foreach(it,X) for(auto it=(X).begin();it!=(X).end();it++)
#define numa(x,a) for(auto x: a)
#define ite iterator
#define mp make_pair
#define rep(i,n) rep2(i,0,n)
#define rep2(i,m,n) for(int i=m;i<(n);i++)
#define pb push_back
#define pf push_front
#define sec second
#define sz(x) ((int)(x).size())
#define ALL( c ) (c).begin(), (c).end()
#define gcd(a,b) __gcd(a,b)
#define mem(x,n) memset(x,n,sizeof(x))
#define endl "\n"
using namespace std;
template <int POS, class TUPLE> void deploy(std::ostream &os, const TUPLE &tuple){}
template <int POS, class TUPLE, class H, class ...Ts> void deploy(std::ostream &os, const TUPLE &t){ os << (POS == 0 ? "" : ", ") << get<POS>(t);
    deploy<POS + 1, TUPLE, Ts...>(os, t); }
template <class T,class U> std::ostream& operator<<(std::ostream &os, std::pair<T,U> &p){ os << "(" << p.first <<", " << p.second <<")";return os; }
template <class T> std::ostream& operator<<(std::ostream &os, std::vector<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e <<
    (--remain == 0 ? "}" : ", "); return os; }
template <class T> std::ostream& operator<<(std::ostream &os, std::set<T> &v){ int remain = v.size(); os << "{"; for(auto e: v) os << e << (--remain
    == 0 ? "}" : ", "); return os; }
template <class T, class K> std::ostream& operator<<(std::ostream &os, std::map<T, K> &mp){ int remain = mp.size(); os << "{"; for(auto e: mp) os << "
    (" << e.first << " -> " << e.second << ")" << (--remain == 0 ? "}" : ", "); return os; }
#define DEBUG1(var0) { std::cerr << (#var0) << "=" << (var0) << endl; }
#define DEBUG2(var0, var1) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG1(var1); }
#define DEBUG3(var0, var1, var2) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG2(var1,var2); }
#define DEBUG4(var0, var1, var2, var3) { std::cerr << (#var0) << "=" << (var0) << ", ";DEBUG3(var1,var2,var3); }
using ll = long long;
vector <int> edge[100100];
int L[100100];
int R[100100];
int N;
int go(int x, int par=-1){
if (x != 0) {
R[x] = R[par] + 1;
}else{
R[x] = 0;
}
int z = INF;
if (sz(edge[x]) == 1) {
z = 0;
}
numa(y,edge[x]){
if (y != par) {
z = min(z, 1 + go(y, x));
}
}
L[x] = z;
return z;
}
void go2(int x, int par=-1) {
if (x != 0) {
L[x] = min(L[par] + 1, L[x]);
}
numa(y,edge[x]){
if (y != par) {
go2(y,x);
}
}
}
int main()
{
cin.tie(0);
ios_base::sync_with_stdio(0);
cin >> N;
rep(i,N-1){
int x,y;
cin >> x >> y;
x--;y--;
edge[x].pb(y);
edge[y].pb(x);
}
go(0);go2(0);
rep(x,N){
cout << min(L[x],R[x]) << endl;
}
return 0;
}
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