Solution 1
func triangleType(nums []int) string {
a:=nums[0]
b:=nums[1]
c:=nums[2]
if a+b<=c || b+c<=a || a+c<=b {
return "none"
}
if a==b && b==c {
return "equilateral"
}
if a==b || b==c || c==a {
return "isosceles"
}
return "scalene"
}

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