剑指offer——扑克牌顺子

import java.util.*; public class Solution { public boolean isContinuous(int [] numbers) { if(numbers == null || numbers.length != 5) return false; for(int i = 0; i < numbers.length; ++i) if(numbers[i] < 0 || numbers[i] > 13) return false; int[] a = new int[14]; for(int i = 0; i < numbers.length; ++i) { ++a[numbers[i]]; } for(int i = 0; i < a.length; ++i) System.out.print(a[i] + " "); System.out.println(); for(int i = 1; i < a.length-4; ++i) { int count = 0; for(int j = i; j <= i + 4; ++j) { //System.out.println("a[" + j + "]" + " = " + a); if(a[j] == 0) ++count; } //System.out.println("count = " + count); if(count == a[0]) return true; } return false; } public static void main(String[] args) { Solution solution = new Solution(); int array[] = new int[] { 1, 3, 2, 4, 6 }; solution.isContinuous(array); } }