제출 #270380

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
270380	2020-08-17 14:33:31	Autoratch	공장들 (JOI14_factories)	C++14	100 / 100	6846 ms	400024 KiB

factories

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#include "factories.h"
#include <bits/stdc++.h>
using namespace std;
 
const int N = 5e5 + 1;
const int K = 19;
 
vector<pair<int,int> > adj[N];
int sz[N],lv[N],dp[K][N],pa[N],lcc[N][K];
long long dis[N];
vector<pair<long long,int> > diss[N];
bool blocked[N];
long long res[N][2],ans;
vector<int> rev;
 
void dfs(int u,int p)
{
    dp[0][u] = p,lv[u] = lv[p]+1;
    for(auto [d,v] : adj[u]) if(v!=p) dis[v] = dis[u]+d,dfs(v,u);
}
 
void getsz(int u,int p,int st,long long w)
{ 
    sz[u] = 1; 
    if(st!=-1) diss[u].push_back({w,st}); 
    for(auto [d,v] : adj[u]) if(v!=p and !blocked[v]) getsz(v,u,st,w+d),sz[u]+=sz[v]; 
}
 
void build(int u,int cp)
{
 
 
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컴파일 시 표준 에러 (stderr) 메시지

factories.cpp: In function 'void dfs(int, int)':
factories.cpp:19:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   19 |     for(auto [d,v] : adj[u]) if(v!=p) dis[v] = dis[u]+d,dfs(v,u);
      |              ^
factories.cpp: In function 'void getsz(int, int, int, long long int)':
factories.cpp:26:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   26 |     for(auto [d,v] : adj[u]) if(v!=p and !blocked[v]) getsz(v,u,st,w+d),sz[u]+=sz[v];
      |              ^
factories.cpp: In function 'void build(int, int)':
factories.cpp:36:18: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   36 |         for(auto [d,v] : adj[c]) if(v!=prev and !blocked[v] and sz[v]>mx) mx = sz[v],r = v;
      |                  ^
factories.cpp:42:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   42 |     for(auto [d,v] : adj[c]) if(!blocked[v]) build(v,c);
      |              ^
factories.cpp: In function 'void upd(int, int)':
factories.cpp:67:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   67 |     for(auto [d,u] : diss[x])
      |              ^

• Subtask 1: 15 / 15
• Subtask 2: 18 / 18
• Subtask 3: 67 / 67