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Solution_413.java
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37 lines (34 loc) · 821 Bytes
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package com.hilbert25.leetcode;
/**
* @author : hilbert25
* @version 创建时间：2017年3月20日 下午11:02:17 LeetCode com.hilbert25.leetcode
* Solution_413
*/
public class Solution_413 {
public static void main(String[] args) {
// TODO Auto-generated method stub
int[] A = { 1, 2, 3, 8, 9, 10 };
System.out.println(numberOfArithmeticSlices(A));
}
public static int numberOfArithmeticSlices(int[] A) {
if (A.length < 3)
return 0;
int begin = 0;
int value = A[1] - A[0];
int[] count = new int[A.length];
count[0] = 0;
count[1] = 0;
for (int i = 2; i < A.length; i++) {
if (A[i] - A[i - 1] == value) {
count[i] = i - 2 - begin + 1;
} else {
begin = i-1;
value = A[i] - A[i - 1];
}
}
int sum = 0;
for (int i : count)
sum += i;
return sum;
}
}