Submission #560142

#	Time	Username	Problem	Language	Result	Execution time	Memory
560142		physics07	Stations (IOI20_stations)	C++17	0 / 100	805 ms	548 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
bool visited[1001];
vector<int> a, adj[1001];
int curr;
void dfs(int x=0) {
    visited[x]=1;
    a[x]=curr++;
    for(auto i: adj[x]) if(!visited[i]) dfs(i);
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
    curr=0;
    a.resize(n);
    memset(visited, 0, sizeof(visited));
    for(int i=0; i<1001; i++) adj[i].clear();
    for(int i=0; i<n-1; i++) {
        adj[u[i]].push_back(v[i]);
        adj[v[i]].push_back(u[i]);
    }
    dfs();
    return a;
}

int find_next_station(int s, int t, std::vector<int> c) {
    if(t<=c[0]) return c[0];
    return c[upper_bound(c.begin(), c.end(), t)-c.begin()-1];
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 8
• Subtask 3: 0 / 16
• Subtask 4: 0 / 10
• Subtask 5: 0 / 61