Submission #1174824

#	TimeUTC-0	Username	Problem	Language	Result	Execution time	Memory
1174824	2025-03-27 11:59:45	khanhphucscratch	Stations (IOI20_stations)	C++20	0 / 100	302 ms	564 KiB

stations

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#include "stations.h"
#include<bits/stdc++.h>
using namespace std;
//Subtask 1
vector<int> ad[1005];
int deg[1005], ans[1005];
bool visited[1005];
void dfs(int u)
{
    visited[u] = 1;
    for(int i = 0; i < ad[u].size(); i++) if(visited[ad[u][i]] == 0){
        ans[ad[u][i]] = ans[u] + i*1000 + 1;
        dfs(ad[u][i]);
    }
}
vector<int> label(int n, int k, vector<int> a, vector<int> b)
{
    for(int i = 0; i < n; i++){
        deg[i] = 0; ad[i].clear(); visited[i] = 0;
    }
    for(int i = 0; i < n-1; i++){
        deg[a[i]]++; deg[b[i]]++;
        ad[a[i]].push_back(b[i]);
        ad[b[i]].push_back(a[i]);
    }
    int root = 0;
    while(root < n && deg[root] <= 2){
        root++;
    }
    if(root == n) root = 0;
 
 
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• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61