제출 #238541

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
238541		Salito	Birmingham (COCI20_birmingham)	C++14	70 / 70	270 ms	9272 KiB

birmingham

#include<bits/stdc++.h>
using namespace std;
int const maxn = 100005;

int n,m,q,k;
int a[maxn];
vector<int>v[maxn];

void read()
{
    int i;
	cin>>n>>m>>q>>k;

	for(i=0;i<q;i++)
        cin>>a[i];

    int x,y;
    for(i=0;i<m;i++)
    {
        cin>>x>>y;
        v[x].push_back(y);
        v[y].push_back(x);
    }
}

int ans[maxn];
void bfs_solve()
{
    queue<int>l;
    int i,sz;
    for(i=0;i<q;i++)
    {
        l.push(a[i]);
        ans[a[i]] = 1;
    }

    while(!l.empty())
    {
        int t = l.front();
        l.pop();

        sz = v[t].size();
        for(i=0;i<sz;i++)
        {
            int nb = v[t][i];
            if(!ans[nb])
            {
                ans[nb] = ans[t]+1;
                l.push(nb);
            }
        }
    }
}

int get_ans(int x)
{
    if(x == 1)
        return 0;
    int t;
    x--;
    int i = 1;
    while(x - i*k > 0)
    {
        x-=i*k;
        i++;
    }
    return i;
}

void print()
{
    int i;
    for(i=1;i<=n;i++)
        cout<<get_ans(ans[i])<<" ";
    cout<<endl;
}

int main()
{
    read();

    bfs_solve();

    print();
	return 0;
}

컴파일 시 표준 에러 (stderr) 메시지

birmingham.cpp: In function 'int get_ans(int)':
birmingham.cpp:59:9: warning: unused variable 't' [-Wunused-variable]
     int t;
         ^

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
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• Subtask 14: 5 / 5