Submission #1296072

#	Time	Username	Problem	Language	Result	Execution time	Memory
1296072		eri16	Stations (IOI20_stations)	C++20	Compilation error	0 ms	0 KiB

stations

#include "stations.h"
#include <bits/stdc++.h>
using namespace std;

vector<long long> label(int n, int k, vector<int> u, vector<int> v) {
    vector<vector<int>> adj(n+1);
    for(int i=0;i<n-1;i++){
        adj[u[i]+1].push_back(v[i]+1);
        adj[v[i]+1].push_back(u[i]+1);
    }

    vector<long long> lbl(n);
    for(int i=1;i<=n;i++){
        long long ans=0;
        for(int j=0;j<adj[i].size();j++){
            vector<int> visited(n+1,0);
            visited[i]=1;
            visited[adj[i][j]]=1;
            queue<int> q;
            int tttt=adj[i][j];
            for(int ij=0;ij<adj[tttt].size();ij++){
                q.push(adj[tttt][ij]);
            }
            while(!q.empty()){
                int x=q.front(); q.pop();
                if(!visited[x]){
                    visited[x]=1;
                    ans=ans*10 + x;
                    for(int ij=0;ij<adj[x].size();ij++){
                        q.push(adj[x][ij]);
                    }
                }
            }
            ans = ans*10 + adj[i][j];
        }
        ans = ans*10 + i;
        lbl[i-1] = ans;
    }
    return lbl;
}

int find_next_station(long long s, int t, vector<int> cp){
    int target = t%10;
    vector<int> c;
    while(s>0){
        c.push_back(s%10);
        s/=10;
    }
    reverse(c.begin(),c.end());
    for(int i=0;i<c.size();i++){
        if(c[i]==target){
            for(int j=i;j<c.size();j++){
                for(int z=0;z<cp.size();z++){
                    if(cp[z]==c[j]) return cp[z];
                }
            }
        }
    }
    return cp[0];
}

Compilation message (stderr)

stations.cpp:5:19: error: ambiguating new declaration of 'std::vector<long long int> label(int, int, std::vector<int>, std::vector<int>)'
    5 | vector<long long> label(int n, int k, vector<int> u, vector<int> v) {
      |                   ^~~~~
In file included from stations.cpp:1:
stations.h:3:18: note: old declaration 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)'
    3 | std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v);
      |                  ^~~~~