Submission #885184

#	Time	Username	Problem	Language	Result	Execution time	Memory
885184		vjudge1	Birmingham (COCI20_birmingham)	C++17	0 / 70	69 ms	13128 KiB

birmingham

#include <bits/stdc++.h>
#define int long long
#define pb push_back
#define endl '\n'
using namespace std;
const int N = 1e5 + 5;

int n,m,p,k,dist[N];
vector<int> g[N];
queue<int> q;
bool vis[N];

void bfs(){
    while(!q.empty()){
        int x=q.front(); q.pop();
        vis[x]=true;
        
        for(auto go: g[x]){
            if(vis[go]) continue;
            dist[go]=dist[x]+1;
            vis[go]=true;
            q.push(go);
            //cout<<go<<" from "<<x<<" with "<<dist[go]<<endl;
        }
    }
}

int bs(int x){
    
    int l=0, r=5e5, ans=-1;
    while(l<=r){
        int m=l+(r-l)/2;
        
        if(m*(m+1)*k/2 >= x ){
            ans=m;
            r=m-1;
        }
        else
            l=m+1;
    }
    return ans;
}

void solve(){
    cin>>n>>m>>p>>k;
    for(int i=0;i<p;i++){
        int x; cin>>x;
        q.push(x);
    }
    for(int i=0;i<m;i++){
        int a,b; cin>>a>>b;
        g[a].pb(b);
        g[b].pb(a);
    }
    
    bfs();
    for(int i=1;i<=n;i++){
        cout<<bs(dist[i])<<" ";
    }
}

int32_t main(){
    cin.tie(0)->sync_with_stdio(false);
    solve();
    return 0;
}

• Subtask 1: 0 / 5
• Subtask 2: 0 / 5
• Subtask 3: 0 / 5
• Subtask 4: 0 / 5
• Subtask 5: 0 / 5
• Subtask 6: 0 / 5
• Subtask 7: 0 / 5
• Subtask 8: 0 / 5
• Subtask 9: 0 / 5
• Subtask 10: 0 / 5
• Subtask 11: 0 / 5
• Subtask 12: 0 / 5
• Subtask 13: 0 / 5
• Subtask 14: 0 / 5