제출 #344327

#	제출 시각UTC-0	아이디	문제	언어	결과	실행 시간	메모리
344327	2021-01-05 13:47:09	Atill83	Railway (BOI17_railway)	C++14	100 / 100	187 ms	29040 KiB

railway

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#include <bits/stdc++.h>
#define ff first
#define ss second
#define endl '\n'
using namespace std;
const long long INF = (long long) 1e18;
const int mod = (int) 1e9+7;
const int MAXN = (int) 3e5+5;
typedef long long ll;
typedef unsigned long long ull;
typedef pair<int,int> pii;
typedef pair<ll,ll> pll;
ll n, m, k;
vector<int> mns[MAXN];
vector<pii> adj[MAXN];
int up[MAXN], down[MAXN], sz[MAXN];
int cur = 0;
vector<int> ans;
void dfs(int v, int par){
    sz[v] = 1;
    for(int i = 0; i < adj[v].size(); i++){
        if(adj[v][i].ff == par){
            swap(adj[v][i], adj[v].back());
            adj[v].pop_back();
            break;
        }
    }
 
 
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컴파일 시 표준 에러 (stderr) 메시지

railway.cpp: In function 'void dfs(int, int)':
railway.cpp:24:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   24 |     for(int i = 0; i < adj[v].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~
railway.cpp:37:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |     for(int i = 1; i < adj[v].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~
railway.cpp: In function 'void dfs2(int)':
railway.cpp:86:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   86 |     for(int j = 1; j < adj[v].size(); j++){
      |                    ~~^~~~~~~~~~~~~~~
railway.cpp:95:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   95 |     for(int i = 1; i < adj[v].size(); i++){
      |                    ~~^~~~~~~~~~~~~~~

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