제출 #1110197

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1110197		vjudge1	Board Game (JOI24_boardgame)	C++17	3 / 100	21 ms	6224 KiB

Main

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

#define ff(i, a, b) for(auto i=(a); i<=(b); ++i)
#define ffr(i, b, a) for(auto i=(b); i>=(a); --i)
#define nl "\n"
#define ss " "
#define pb push_back
#define fi first
#define se second
#define sz(s) (int)s.size()
#define ms(a,x) memset(a, x, sizeof (a))
#define re exit(0)
#define cn continue

typedef long long ll;
typedef unsigned long long ull;
typedef long double ld;
typedef vector<int> vi;
typedef vector<ll> vll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;
typedef vector<pii> vpii;
typedef vector<pll> vpll;


const int mod=1e9+7;
//const int mod=998244353;
const int maxn=1e5+105;
const int maxm=4*maxn+5;
const ll inf=1e18;

mt19937 ran(time(0));
mt19937_64 ran64(time(0));

void rf(){

    ios_base::sync_with_stdio(0);
    cin.tie(0); cout.tie(0);
    if(fopen("o.inp","r")){
        freopen("o.inp","r",stdin); freopen("o.out","w",stdout);
    }
}

void add(int &x, int y)
{
    x+=y;
    if(x>=mod) x-=mod;
    if(x<0) x+=mod;
}

int n, m, k, x[maxn];
vi g[maxn];
int d[maxn];
string s;

void bfs(int st)
{
    ff(i, 1, n) d[i]=-1;
    d[st]=0;
    queue<int> q; q.push(st);
    while(!q.empty())
    {
        int u=q.front(); q.pop();
        for(auto v:g[u])
        {
            if(d[v]+1) continue;
            d[v]=d[u]+1;
            q.push(v);
        }
    }
    ff(i, 1, n) cout<<d[i]<<nl;
}

signed main()
{
    rf();
    cin>>n>>m>>k;
    while(m--)
    {
        int u, v; cin>>u>>v;
        g[u].pb(v); g[v].pb(u);
    }
    cin>>s;
    ff(i, 1, n) cin>>x[i];
    bfs(x[1]);
    re;
}

컴파일 시 표준 에러 (stderr) 메시지

Main.cpp: In function 'void rf()':
Main.cpp:41:16: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         freopen("o.inp","r",stdin); freopen("o.out","w",stdout);
      |         ~~~~~~~^~~~~~~~~~~~~~~~~~~
Main.cpp:41:44: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)' declared with attribute 'warn_unused_result' [-Wunused-result]
   41 |         freopen("o.inp","r",stdin); freopen("o.out","w",stdout);
      |                                     ~~~~~~~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 3 / 3
• Subtask 2: 0 / 7
• Subtask 3: 0 / 7
• Subtask 4: 0 / 19
• Subtask 5: 0 / 23
• Subtask 6: 0 / 9
• Subtask 7: 0 / 23
• Subtask 8: 0 / 9