添加 problem 11

This commit is contained in:
YDZ
2019-04-24 08:20:22 +08:00
parent e69dccdef2
commit 57ca07c855
3 changed files with 96 additions and 0 deletions

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package leetcode
func maxArea(height []int) int {
max, start, end := 0, 0, len(height)-1
for start < end {
width := end - start
high := 0
if height[start] < height[end] {
high = height[start]
start++
} else {
high = height[end]
end--
}
temp := width * high
if temp > max {
max = temp
}
}
return max
}

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package leetcode
import (
"fmt"
"testing"
)
type question11 struct {
para11
ans11
}
// para 是参数
// one 代表第一个参数
type para11 struct {
one []int
}
// ans 是答案
// one 代表第一个答案
type ans11 struct {
one int
}
func Test_Problem11(t *testing.T) {
qs := []question11{
question11{
para11{[]int{1, 8, 6, 2, 5, 4, 8, 3, 7}},
ans11{49},
},
question11{
para11{[]int{1, 1}},
ans11{1},
},
}
fmt.Printf("------------------------Leetcode Problem 11------------------------\n")
for _, q := range qs {
_, p := q.ans11, q.para11
fmt.Printf("【input】:%v 【output】:%v\n", p.one, maxArea(p.one))
}
fmt.Printf("\n\n\n")
}

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# [11. Container With Most Water](https://leetcode.com/problems/container-with-most-water/)
## 题目
Given n non-negative integers a1, a2, ..., an , where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find two lines, which together with x-axis forms a container, such that the container contains the most water.
Note: You may not slant the container and n is at least 2.
![](https://s3-lc-upload.s3.amazonaws.com/uploads/2018/07/17/question_11.jpg)
The above vertical lines are represented by array [1,8,6,2,5,4,8,3,7]. In this case, the max area of water (blue section) the container can contain is 49.
Example 1:
```c
Input: [1,8,6,2,5,4,8,3,7]
Output: 49
```
## 题目大意
给出一个非负整数数组 a1a2a3…… an每个整数标识一个竖立在坐标轴 x 位置的一堵高度为 ai 的墙,选择两堵墙,和 x 轴构成的容器可以容纳最多的水。
这一题也是对撞指针的思路。首尾分别 2 个指针,每次移动以后都分别判断长宽的乘积是否最大。