Submission #101465

#	Time	Username	Problem	Language	Result	Execution time	Memory
101465		cheeheng	Adriatic (CEOI13_adriatic)	C++14	25 / 100	2062 ms	231916 KiB

adriatic

#include <bits/stdc++.h>

using namespace std;

int R[250000];
int C[250000];

int dist[250000];

vector<int> AdjList[250005];

int main(){
    int N;
    scanf("%d", &N);

    for(int i = 0; i < N; i ++){
        scanf("%d%d", &R[i], &C[i]);
    }

    for(int i = 0; i < N; i ++){
        for(int j = i+1; j < N; j ++){
            if((R[i] < R[j] && C[i] < C[j]) || (R[i] > R[j] && C[i] > C[j])){
                AdjList[i].push_back(j);
                AdjList[j].push_back(i);
            }
        }
    }

    for(int i = 0; i < N; i ++){
        long long ans = 0;
        memset(dist, -1, sizeof(dist));
        queue<int> q;
        q.push(i);
        dist[i] = 0;
        while(!q.empty()){
            int u = q.front(); q.pop();
            for(int v: AdjList[u]){
                if(dist[v] == -1){
                    dist[v] = dist[u] + 1;
                    q.push(v);
                }
            }
        }
        for(int j = 0; j < N; j ++){
            ans += dist[j];
        }
        printf("%lld\n", ans);
    }
}

Compilation message (stderr)

adriatic.cpp: In function 'int main()':
adriatic.cpp:14:10: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
     scanf("%d", &N);
     ~~~~~^~~~~~~~~~
adriatic.cpp:17:14: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
         scanf("%d%d", &R[i], &C[i]);
         ~~~~~^~~~~~~~~~~~~~~~~~~~~~

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