제출 #881573

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
881573	2023-12-01 14:04:40	Beerus13	공장들 (JOI14_factories)	C++14	100 / 100	3668 ms	380944 KiB

factories

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#include <bits/stdc++.h>
// #include "factories.h"
using namespace std;
#define ll long long
#define pii pair<int, ll>
const int ar = 5e5 + 5;
const ll inf = 1e15;
 
int n, q, N, A[ar], B[ar], D[ar], Y[ar], X[ar], S, T;
int sz[ar], vt[ar];
vector<pii> adj[ar], ancestors[ar];
bool deleted[ar];
ll dp[ar];
void dfs(int u, int par) {
    ++N;
    sz[u] = 1;
    for(auto [x, w] : adj[u]) if(x != par && !deleted[x]) {
        dfs(x, u);
        sz[u] += sz[x];
    }
}
 
int find_centroid(int u, int par) {
    for(auto [x, w] : adj[u]) if(x != par && !deleted[x] && sz[x] > N / 2) return find_centroid(x, u);
    return u;
}
 
void build_distance(int u, int par, int c, ll d) {
    for(auto [x, w] : adj[u]) if(x != par && !deleted[x]) build_distance(x, u, c, d + w);
 
 
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컴파일 시 표준 에러 (stderr) 메시지

factories.cpp: In function 'void dfs(int, int)':
factories.cpp:18:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   18 |     for(auto [x, w] : adj[u]) if(x != par && !deleted[x]) {
      |              ^
factories.cpp: In function 'int find_centroid(int, int)':
factories.cpp:25:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   25 |     for(auto [x, w] : adj[u]) if(x != par && !deleted[x] && sz[x] > N / 2) return find_centroid(x, u);
      |              ^
factories.cpp: In function 'void build_distance(int, int, int, long long int)':
factories.cpp:30:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   30 |     for(auto [x, w] : adj[u]) if(x != par && !deleted[x]) build_distance(x, u, c, d + w);
      |              ^
factories.cpp: In function 'void build_tree(int)':
factories.cpp:41:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   41 |     for(auto [x, w] : adj[centroid]) {
      |              ^
factories.cpp: In function 'void add(int)':
factories.cpp:47:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   47 |     for(auto [x, w] : ancestors[u]) dp[x] = min(dp[x], w);
      |              ^
factories.cpp: In function 'void del(int)':
factories.cpp:51:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   51 |     for(auto [x, w] : ancestors[u]) dp[x] = inf;
      |              ^
factories.cpp: In function 'long long int get(int)':
factories.cpp:56:14: warning: structured bindings only available with '-std=c++17' or '-std=gnu++17'
   56 |     for(auto [x, w] : ancestors[u]) {
      |              ^

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