제출 #842481

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
842481	2023-09-03 00:24:39	CodePlatina	봉쇄 시간 (IOI23_closing)	C++17	100 / 100	147 ms	43372 KiB

closing

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#include "closing.h"
#include <vector>
#include <iostream>
#include <algorithm>
#define pii pair<int, int>
#define pll pair<long long, long long>
#define ff first
#define ss second
using namespace std;
vector<pii> gph[202020];
long long D1[202020];
long long D2[202020];
bool path[202020];
long long L;
void dfs1(int x, int p, long long w)
{
    D1[x] = w;
    for(auto [y, z] : gph[x]) if(y != p) dfs1(y, x, w + z);
}
void dfs2(int x, int p, long long w)
{
    D2[x] = w;
    for(auto [y, z] : gph[x]) if(y != p) dfs2(y, x, w + z);
}
bool dfs(int x, int p, int y)
{
    if(x == y)
    {
 
 
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