[剑指Offer] 64.滑动窗口的最大值

题目描述

给定一个数组和滑动窗口的大小,找出所有滑动窗口里数值的最大值。例如,如果输入数组{2,3,4,2,6,2,5,1}及滑动窗口的大小3,那么一共存在6个滑动窗口,他们的最大值分别为{4,4,6,6,6,5}; 针对数组{2,3,4,2,6,2,5,1}的滑动窗口有以下6个: {[2,3,4],2,6,2,5,1}, {2,[3,4,2],6,2,5,1}, {2,3,[4,2,6],2,5,1}, {2,3,4,[2,6,2],5,1}, {2,3,4,2,[6,2,5],1}, {2,3,4,2,6,[2,5,1]}。

 1 class Solution {
 2 public:
 3     vector<int> maxInWindows(const vector<int>& num, unsigned int size)
 4     {
 5         int length = num.size();
 6         vector<int> res;
 7          if(length < size || size == 0)
 8             return res;
 9         int Max = -1;
10         for(int i = 0;i <= length - size;i ++){
11             Max = num[i];
12             for(int j = i + 1;j < i + size;j ++)
13                 if(Max < num[j]) Max = num[j];
14             res.push_back(Max);
15         }
16         return res;
17     }
18 };

 

posted @ 2017-03-19 09:34  Strawberry丶  阅读(137)  评论(0编辑  收藏  举报