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Commit5060bbf

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author
Sathish Babu
committed
✨ Added solution to 747
1 parented50c8b commit5060bbf

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3 files changed

+40
-9
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3 files changed

+40
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lines changed

‎src/0747.Largest-Number-At-Least-Twice-of-Others/README.md

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##Description
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In a given integer array nums, there is always exactly one largest element.
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Find whether the largest element in the array is at least twice as much as every other number in the array.
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If it is, return the index of the largest element, otherwise return -1.
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**Example 1:**
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```
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Input: nums = [3, 6, 1, 0]
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Output: 1
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Explanation: 6 is the largest integer, and for every other number in the array x,
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6 is more than twice as big as x. The index of value 6 is 1, so we return 1.
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```
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**Example 1:**
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```
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Input: a = "11", b = "1"
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Output: "100"
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Input: nums = [1, 2, 3, 4]
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Output: -1
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Explanation: 4 isn't at least as big as twice the value of 3, so we return -1.
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```
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##题意
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package Solution
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funcSolution(xbool)bool {
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returnx
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funcSolution(nums []int)int {
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n:=len(nums)
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ifn==1 {
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return0
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}
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max,maxIndex:=-1,-1
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fori,num:=rangenums {
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ifnum>max {
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max,maxIndex=num,i
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}
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}
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for_,num:=rangenums {
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ifnum!=max&&2*num>max {
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return-1
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}
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}
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returnmaxIndex
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}

‎src/0747.Largest-Number-At-Least-Twice-of-Others/Solution_test.go

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//测试用例
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cases:= []struct {
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namestring
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inputsbool
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expectbool
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inputs[]int
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expectint
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}{
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{"TestCase",true,true},
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{"TestCase",true,true},
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{"TestCase",false,false},
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{"TestCase",[]int{3,6,1,0},1},
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{"TestCase",[]int{1,2,3,4},-1},
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{"TestCase",[]int{6},0},
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}
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//开始测试

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