제출 #956371

#제출 시각UTC-0아이디문제언어결과실행 시간메모리
9563712024-04-01 17:28:11LCJLYTwo Currencies (JOI23_currencies)C++14
0 / 100
9 ms14172 KiB
#include <bits/stdc++.h>
using namespace std;
//#define int long long
#define ld long double
#define show(x,y) cout << y << " " << #x << endl;
#define show2(x,y,i,j) cout << y << " " << #x << " " << j << " " << #i << endl;
#define show3(x,y,i,j,p,q) cout << y << " " << #x << " " << j << " " << #i << " " << q << " " << #p << endl;
#define show4(x,y) for(auto it:y) cout << it << " "; cout << #x << endl;
typedef pair<long long,int>pii;
typedef pair<pii,pii>pi2;
mt19937 rng(chrono::system_clock::now().time_since_epoch().count());
vector<int>adj[100005];
int in[100005];
int out[100005];
int d[100005];
int two[25][100005];
int ptr=0;
int h[100005];
void dfs(int index, int par){
in[index]=++ptr;
for(int x=0;x<20;x++){
two[x+1][index]=two[x][two[x][index]];
}
for(auto it:adj[index]){
if(it==par) continue;
two[0][it]=index;
d[it]=d[index]+1;
 
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