Submission #949132

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
949132	2024-03-19 01:53:10	ting39	Two Currencies (JOI23_currencies)	C++17	28 / 100	486 ms	40028 KiB

currencies

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#include<bits/stdc++.h>
#define int long long
#define pii pair<int,int>
#define F first
#define S second
using namespace std;
vector<vector<int>> g,jump;
vector<int> dep,dis,c;
int cost;
void dfs(int pre,int pos){
  for(int i:g[pos]){
    if(i==pre) continue;
    jump[i][0]=pos;
    dep[i]=dep[pos]+1;
    dis[i]=dis[pos]+c[i];
    dfs(pos,i);
  }
}
int lca(int x,int y){
  if(dep[x]<dep[y]){
    swap(x,y);
  }
  int diff=dep[x]-dep[y],cnt=0;
  while(diff){
    if(diff&1){
      x=jump[x][cnt];
    }
    cnt++;
    diff>>=1;
  }
 
 
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• Subtask 1: 0 / 10
• Subtask 2: 28 / 28
• Subtask 3: 0 / 30
• Subtask 4: 0 / 32