Submission #845167

#	Time	Username	Problem	Language	Result	Execution time	Memory
845167		vjudge1	Birmingham (COCI20_birmingham)	C++17	20 / 70	170 ms	8940 KiB

birmingham

#include <iostream>
#include <bits/stdc++.h>
using namespace std;
#define MOD 1000000007
#define ll long long
#define pri pair<int,int>
#define prl pair<ll,ll>
#define vi vector<int>
#define vl vector<ll>
#define vp vector<pair<int,int>>
#define vpl vector<pair<ll,ll>>
#define re return 0
#define sqrt sqrtl

struct node {
    int val;
    vector<int> adj;
    int length=1e9;
};

int32_t main() {
    int n,m,k,q;cin>>n>>m>>q>>k;
    queue<int> que;
    vector<node> nodes(n+1); 
    for (int i = 0;i<q;i++) {
        int x;cin>>x;
        que.push(x);
        nodes[x].length = 0;
    }
    for (int i = 0;i<m;i++ ){
        int a,b;cin>>a>>b;
        nodes[a].adj.push_back(b);
        nodes[b].adj.push_back(a);
    }
    while (que.size()) {
        auto f = que.front();
        for (int i = 0; i<nodes[f].adj.size();i++) {
            if(nodes[nodes[f].adj[i]].length > nodes[f].length+1) {
                nodes[nodes[f].adj[i]].length = nodes[f].length+1;
                que.push(nodes[f].adj[i]);
            }
        }
        que.pop();
    }

    for (int i = 1;i<=n;i++){
        int x = nodes[i].length;
        int res =ceil((-1 + sqrt(1+(8*x)/k)) / 2);
        cout<<res<<" ";
    }cout<<endl;
    return 0;
}

Compilation message (stderr)

birmingham.cpp: In function 'int32_t main()':
birmingham.cpp:37:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare]
   37 |         for (int i = 0; i<nodes[f].adj.size();i++) {
      |                         ~^~~~~~~~~~~~~~~~~~~~

• Subtask 1: 5 / 5
• Subtask 2: 5 / 5
• Subtask 3: 5 / 5
• Subtask 4: 5 / 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