結果
| 問題 | No.2634 Tree Distance 3 |
| ユーザー |
 owo_zzz
|
| 提出日時 | 2025-01-26 04:33:19 |
| 言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
| 結果 |
AC
|
| 実行時間 | 2,641 ms / 3,000 ms |
| コード長 | 8,348 bytes |
| コンパイル時間 | 1,822 ms |
| コンパイル使用メモリ | 110,312 KB |
| 実行使用メモリ | 48,204 KB |
| 最終ジャッジ日時 | 2025-01-26 04:34:57 |
| 合計ジャッジ時間 | 95,339 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
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| ファイルパターン | 結果 |
|---|---|
| sample | AC * 2 |
| other | AC * 69 |
コンパイルメッセージ
main.cpp: In function ‘int main()’:
main.cpp:283:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
283 | freopen(task".inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~
main.cpp:284:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
284 | freopen(task".out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
main.cpp:288:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
288 | freopen(task1".inp","r",stdin);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
main.cpp:289:16: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
289 | freopen(task1".out","w",stdout);
| ~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~
ソースコード
#pragma GCC optimize("Ofast,unroll-loops")#include <algorithm>// #include <bitset>// #include <complex>// #include <deque>// #include <exception>// #include <fstream>// #include <functional>// #include <iomanip>// #include <ios>// #include <iosfwd>#include <iostream>// #include <istream>// #include <iterator>// #include <limits>// #include <locale>// #include <map>// #include <new>// #include <numeric>// #include <ostream>// #include <queue>#include <set>// #include <unordered_set>// #include <sstream>// #include <stack>// #include <stdexcept>// #include <streambuf>// #include <string>// #include <utility>// #include <valarray>#include <vector>#include <cstring>// #include <unordered_map>// #include <cmath>// #include <array>// #include <cassert>// #include <random>// #include <chrono>using namespace std;#define BIT(i,j) (((i)>>(j))&1LL)#define MASK(i) (1LL<<(i))#define ALL(x) (x).begin(),(x).end()#define SZ(x) (int)(x).size()#define fi first#define se second#define ull ungsigned long long#define ll long long#define ld long double#define vi vector<int>#define vvi vector<vi>#define vvvi vector<vvi>#define pii pair<int,int>#define vpii vector<pii>#define vvpii vector<vpii>#define REPDIS(i,be,en,j) for(int i = (be); i<=(en); i+=j)#define REPD(i,be,en) for(int i = (be); i>=(en); i--)#define REP(i,be,en) for(int i = (be); i<=(en); i++)#define endl "\n"#define MP make_pair// #define int ll//-----------------------------------------------------------------------------------------------//inline void scan(){} template<typename F, typename... R> inline void scan(F &f,R&... r){cin>>f;scan(r...);}inline void print(){} template<typename F, typename... R> inline void print(F f,R... r){cout<<f;print(r...);}//-----------------------------------------------------------------------------------------------//void __print(int x) {cerr << x;}void __print(long x) {cerr << x;}void __print(unsigned x) {cerr << x;}void __print(unsigned long x) {cerr << x;}void __print(unsigned long long x) {cerr << x;}void __print(float x) {cerr << x;}void __print(double x) {cerr << x;}void __print(long double x) {cerr << x;}void __print(char x) {cerr << '\'' << x << '\'';}void __print(const char *x) {cerr << '\"' << x << '\"';}void __print(const string &x) {cerr << '\"' << x << '\"';}void __print(bool x) {cerr << (x ? "true" : "false");}template<typename T, typename V>void __print(const pair<T, V> &x) {cerr << '{'; __print(x.first); cerr << ','; __print(x.second); cerr << '}';}template<typename T>void __print(const T &x) {int f = 0; cerr << '{'; for (auto &i: x) cerr << (f++ ? "," : ""), __print(i); cerr << "}";}void _print() {cerr << "]\n";}template <typename T, typename... V>void _print(T t, V... v) {__print(t); if (sizeof...(v)) cerr << ", "; _print(v...);}#ifndef ONLINE_JUDGE#define debug(x...) cerr << "[" << #x << "] = ["; _print(x)#else#define debug(x...)#endif//------------------------------------------------------------------------------------------------//const ll LINF = 1e18;const int INF = 1e9;const int LOG = 20;const int MAXN = 2e5+7;const int N = 1e2+3;const int MOD = 1e9+7;const int BASE = 1e5;const ld EPS = 1e-9;// const ld PI = acos(-1);const int OFFSET = 1e3;//------------------------------------------------------------------------------------------------//template<typename T1, typename T2> bool mini(T1 &a, T2 b){if(a>b){a=b;return true;}return false;}template<typename T1, typename T2> bool maxi(T1 &a, T2 b){if(a<b){a=b;return true;}return false;}template<typename T> T gcd(T a, T b) { while(b) { a %= b; swap(a,b); } return a; }template<typename T> T lcm(T a, T b) { return a/gcd(a,b)*b; }//------------------------------------------------------------------------------------------------///*----------------------------------------------------------------END OF TEMPLATE----------------------------------------------------------------*/int BUF=100000;int buf_readed;int buf_index;char buffer[100000];void my_init(){buf_index=buf_readed=0;}/*****************************************/char my_getchar(){char x;if(buf_index==buf_readed){buf_index=0;buf_readed=fread(buffer,1,BUF,stdin);}x=buffer[buf_index];buf_index++;return x;}/*************************************/int readInt(){int r=0;char c;while(1){c=my_getchar();if((c>='0' && c<='9')){r=(c-'0');break;}}while(1){c=my_getchar();if(!(c>='0' && c<='9'))break;r=r*10+(c-'0');}return r;}/***************************************/vi adj[MAXN],c;int a[MAXN],res[MAXN],del[MAXN],child[MAXN],n;multiset<int> tam[MAXN];int t[MAXN<<1];vpii b;void build() { // build the treefor (int i = n - 1; i > 0; --i) t[i] = max(t[i<<1],t[i<<1|1]);}int query(int l, int r) {int res = -INF;for (l += n, r += n; l < r; l >>= 1, r >>= 1) {if (l&1) maxi(res,t[l++]);if (r&1) maxi(res,t[--r]);}return res;}void modify(int p, int value) { // set value at position pfor (t[p += n] = value; p > 1; p >>= 1) t[p>>1] = max(t[p],t[p^1]);}void seg_update(int pos, int val){tam[pos].insert(val);modify(pos,*tam[pos].rbegin());}void seg_rem(int pos, int val){tam[pos].erase(tam[pos].find(val));if(SZ(tam[pos])>0) modify(pos,*tam[pos].rbegin());else modify(pos,-INF);}int dfs1(int u, int par){child[u] = 1;for(int &v:adj[u]){if(del[v] || v==par) continue;child[u] += dfs1(v,u);}return child[u];}int dfs2(int u, int par, int siz){for(int &v:adj[u]){if(v==par || del[v]) continue;if(child[v]*2>siz) return dfs2(v,u,siz);}return u;}void update(int u, int par, int dis){c.emplace_back(u);seg_update(a[u],dis);for(int &v:adj[u]){if(del[v] || v==par) continue;update(v,u,dis+1);}}void solve(int u, int par, int dis){b.emplace_back(u,dis);seg_rem(a[u],dis);for(int &v:adj[u]){if(del[v] || v==par) continue;solve(v,u,dis+1);}}void calc(int u){int siz = dfs1(u,-1);u = dfs2(u,-1,siz);del[u] = 1;update(u,-1,0);maxi(res[u],query(a[u],n));for(int &v:adj[u]){if(del[v]) continue;while(SZ(b)) b.pop_back();solve(v,u,1);for(auto &&[x,dis]:b) maxi(res[x],dis+query(a[x],n));for(auto &&[x,dis]:b) seg_update(a[x],dis);}for(int &x:c){if(SZ(tam[a[x]])>0){tam[a[x]].clear();seg_update(a[x],-INF);}}while(SZ(c)) c.pop_back();for(int &v:adj[u]){if(del[v]) continue;calc(v);}}void solve(){n = readInt();vi compress;for(int i = 0; i<n; ++i){a[i] = readInt();compress.emplace_back(a[i]);}sort(ALL(compress));compress.resize(unique(ALL(compress))-compress.begin());for(int i = 0; i<n; ++i){a[i] = lower_bound(ALL(compress),a[i])-compress.begin();// cerr << a[i] << " ";}for(int i = 1; i<n; ++i){int u = readInt(),v = readInt();--u; --v;adj[u].emplace_back(v);adj[v].emplace_back(u);}for(int i = 0; i<=2*n; i++) t[i] = -INF;calc(0);for(int i = 0; i<n; ++i) cout << res[i] << ' ';}signed main(){ios::sync_with_stdio(false);cout.tie(0);#define task "test"if(fopen(task".inp","r")){freopen(task".inp","r",stdin);freopen(task".out","w",stdout);}#define task1 "nothing"if(fopen(task1".inp","r")){freopen(task1".inp","r",stdin);freopen(task1".out","w",stdout);}int test = 1;while(test--){solve();}cerr << "\nTime elapsed: " << 1000*clock()/CLOCKS_PER_SEC << "ms\n";return 0;}/** /\_/\* (= ._.)* / >TL \>AC**/