제출 #826653

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
826653		Marco_Escandon	Stations (IOI20_stations)	C++17	0 / 100	710 ms	672 KiB

stations

#include <vector>
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
ll vis=0;
vector<int> sol;
vector<vector<ll>> cad;
void dfs(ll node,ll p, ll p2)
{
    if(p2%2==0)
    {
        sol[node]=vis;
        vis++;
    }

    for(auto i:cad[node])
    {
        if(i!=p)
        {
            dfs(i,node,p2+1);
        }
    }
    if(p2%2==1)
    {
        sol[node]=vis;
        vis++;
    }
}
std::vector<int> label(int n, int k, std::vector<int> u, std::vector<int> v) {
    vis=0;
    cad.assign(n+5,vector<ll>());
    for(int i=0; i<u.size(); i++)
    {
        cad[u[i]].push_back(v[i]);
        cad[v[i]].push_back(u[i]);
    }
    sol.clear();;
    sol.assign(n,0);
    dfs(0,-1,2);
	return sol;
}

int find_next_station(int s, int t, std::vector<int> c) {
	sort(c.begin(), c.end());
	if(c.size()==1)return c[0];
	ll pl=0;
	for(auto i:c)
    {
        if(i>s)
            pl++;
    }
    if(pl==0)
    {

        if(c[0]>=t||s<t)
            return c[0];
        for(int i=0; i<c.size()-1; i++)
        {
            if(c[i]<t&&c[i+1]>=t)
                return c[i+1];
        }
    }
    else
    {
        if(c.back()<=t||t<s)
            return c.back();
        for(int i=0; i<c.size(); i++)
        {
            if(c[i]>=t)
                return c[i];
        }
    }
}

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'std::vector<int> label(int, int, std::vector<int>, std::vector<int>)':
stations.cpp:32:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   32 |     for(int i=0; i<u.size(); i++)
      |                  ~^~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:57:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   57 |         for(int i=0; i<c.size()-1; i++)
      |                      ~^~~~~~~~~~~
stations.cpp:67:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   67 |         for(int i=0; i<c.size(); i++)
      |                      ~^~~~~~~~~
stations.cpp:73:1: warning: control reaches end of non-void function [-Wreturn-type]
   73 | }
      | ^

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