func removeDuplicates(nums []int) int {
i := 0
for j:= 1;j<len(nums);j++{
if nums[i]!=nums[j]{
i++
nums[i]=nums[j]
}
}
return i+1
}
51.最大子序和
func maxSubArray(nums []int) int {
sum:= 0
max :=nums[0]
for i:= 0 ;i<len(nums);i++{
if sum<=0{
sum=nums[i]
}else{
sum+=nums[i]
}
max = Max(max,sum)
}
return max
}
func Max(a int, b int) int{
if a>b{
return a
}else{
return b
}
}