Submission #101513

#	Time	Username	Problem	Language	Result	Execution time	Memory
101513		dwsc	Adriatic (CEOI13_adriatic)	C++14	25 / 100	2045 ms	263168 KiB

adriatic

#include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> ii;
int main(){
    int n;
    cin >> n;
    ii arr[n];
    vector<int> adj[n];
    for (int i = 0; i < n; i++){
        cin >> arr[i].first >> arr[i].second;
        for (int j = 0; j < i; j++){
            if ((arr[j].first<arr[i].first)&&(arr[j].second<arr[i].second)||(arr[j].first>arr[i].first)&&(arr[j].second>arr[i].second)){
                adj[j].push_back(i);
                adj[i].push_back(j);
               // cout<< i <<  " " << j << "hi\n";
            }
        }
    }
    for (int i = 0; i < n; i++){
        queue<int> q;
        q.push(i);
        int dist[n];
        memset(dist,-1,sizeof(dist));
        dist[i] = 0;
        int sum = 0;
        while (!q.empty()){
            int u = q.front();
            q.pop();
            for (int i = 0; i < adj[u].size(); i++){
                int v = adj[u][i];
                if (dist[v] == -1){
                    dist[v] = dist[u]+1;
                    sum += dist[v];
                    q.push(v);
                }
            }
        }
        cout << sum << "\n";
    }
}

Compilation message (stderr)

adriatic.cpp: In function 'int main()':
adriatic.cpp:12:44: warning: suggest parentheses around '&&' within '||' [-Wparentheses]
             if ((arr[j].first<arr[i].first)&&(arr[j].second<arr[i].second)||(arr[j].first>arr[i].first)&&(arr[j].second>arr[i].second)){
                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
adriatic.cpp:29:31: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
             for (int i = 0; i < adj[u].size(); i++){
                             ~~^~~~~~~~~~~~~~~

• Subtask 1: 25 / 25
• Subtask 2: 0 / 25
• Subtask 3: 0 / 10
• Subtask 4: 0 / 20
• Subtask 5: 0 / 20