제출 #805148

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
805148		Andrey	기지국 (IOI20_stations)	C++14	0 / 100	724 ms	928 KiB

stations

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

vector<int> yay(0);
vector<int> haha[10001];
int p;

void dfs(int a, int t, int d) {
    yay[a] = d;
    for(int i = 0; i < haha[a].size(); i++) {
        if(haha[a][i] != t) {
            dfs(haha[a][i],a,d+1);
        }
    }
}

vector<int> label(int n, int k, vector<int> u, vector<int> v) {
    for(int i = 0; i < n; i++) {
        haha[i].clear();
    }
    for(int i = 0; i < n-1; i++) {
        haha[u[i]].push_back(v[i]);
        haha[v[i]].push_back(u[i]);
    }
    p = 0;
    yay.clear();
	for(int i = 0; i < n; i++) {
        yay.push_back(0);
	}
	vector<int> ans(0);
	for(int i = 0; i < n; i++) {
        if(haha[i].size() == 1) {
            dfs(0,-1,0);
            break;
        }
	}
	for(int i = 0; i < n; i++) {
        ans.push_back(yay[i]);
	}
    return ans;
}

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

컴파일 시 표준 에러 (stderr) 메시지

stations.cpp: In function 'void dfs(int, int, int)':
stations.cpp:11:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   11 |     for(int i = 0; i < haha[a].size(); i++) {
      |                    ~~^~~~~~~~~~~~~~~~
stations.cpp: In function 'int find_next_station(int, int, std::vector<int>)':
stations.cpp:46:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   46 |         for(int i = 0; i < c.size(); i++) {
      |                        ~~^~~~~~~~~~
stations.cpp:47:32: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   47 |             if(c[i] <= t && (i == c.size()-1 || c[i+1] > t)) {
      |                              ~~^~~~~~~~~~~~~
stations.cpp:57:30: 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 = 1; i < c.size(); i++) {
      |                            ~~^~~~~~~~~~
stations.cpp:58:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   58 |                 if(c[i] <= t && (i == c.size()-1 || c[i+1] > t)) {
      |                                  ~~^~~~~~~~~~~~~
stations.cpp:64:1: warning: control reaches end of non-void function [-Wreturn-type]
   64 | }
      | ^

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