Submission #1165517

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1165517	2025-03-12 01:49:37	DanerZein	Valley (BOI19_valley)	C++20	100 / 100	334 ms	40608 KiB

valley

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#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef pair<int,int> ii;
typedef vector<ii> vi;
const int MAX_N=1e5+10;
const ll MAX=1e15;
vector<vi> G;
int shop[MAX_N];
ll dis[MAX_N];
ll dp[MAX_N];
int pa[MAX_N][22];
ll jump[MAX_N][22];
int level[MAX_N];
void dfs(int u,int p){
  if(shop[u]) dp[u]=0;
  for(auto &v:G[u]){
    if(v.first!=p){
      
      dis[v.first]=dis[u]+v.second;
      dfs(v.first,u);   
      dp[u]=min(dp[u], dp[v.first]+v.second);
    }
  }
 
 
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• Subtask 1: 9 / 9
• Subtask 2: 27 / 27
• Subtask 3: 23 / 23
• Subtask 4: 41 / 41