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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5.  class Ideone {
  6.     static ArrayList<Integer>[] graph;
  7.  
  8.     public static void main(String[] args) {
  9.         // 그래프 초기화
  10.         int numNodes = 4;
  11.         graph = new ArrayList[numNodes];
  12.         for (int i = 0; i < numNodes; i++) {
  13.             graph[i] = new ArrayList<>();
  14.         }
  15.  
  16.         // 그래프 생성
  17.         addEdge(0, 1);
  18.         addEdge(0, 2);
  19.         addEdge(0, 3);
  20.         addEdge(0, 4);
  21.  
  22.         addEdge(1, 0);
  23.         addEdge(1, 2);
  24.         addEdge(1, 3);
  25.         addEdge(1, 3);
  26.  
  27.         addEdge(2, 0);
  28.         addEdge(2, 1);
  29.         addEdge(2, 1);
  30.         addEdge(2, 1);
  31.  
  32.         addEdge(3, 1);
  33.         addEdge(3, 1);
  34.         addEdge(3, 1);
  35.         addEdge(3, 1);
  36.  
  37.         // 출력
  38.         for (int i = 0; i < numNodes; i++) {
  39.             System.out.print("graph[" + i + "] -> ");
  40.             for (int j : graph[i]) {
  41.                 System.out.print(j + " ");
  42.             }
  43.             System.out.println();
  44.         }
  45.     }
  46.  
  47.     static void addEdge(int u, int v) {
  48.         graph[u].add(v);
  49.     }
  50. }
Success #stdin #stdout 0.14s 57492KB
comments (?)
stdin 
Standard input is empty
stdout 
graph[0] -> 1 2 3 4 
graph[1] -> 0 2 3 3 
graph[2] -> 0 1 1 1 
graph[3] -> 1 1 1 1
https://ideone.com/4ghFc6
language:
Java (HotSpot 12)
created:
10 days ago
visibility:
public

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