largest_perimeter_triangle.py (734B)
| # 976. Largest Perimeter Triangle
"""
given an integer array 'nums', return the largest perimeter of a triangle
with a non-zero area, formed from three of these lengths. if it is impossible
to form any triangle of a non-zero area, return 0.
"""
class Solution(object):
def largestPerimeter(self, nums):
"""
:type nums: List[int]
:rtype: int
"""
nums = sorted(nums)[::-1]
for i in range(len(nums) - 2):
if nums[i] < nums[i + 1] + nums[i + 2]:
return nums[i] + nums[i + 1] + nums[i + 2]
return 0
if __name__ == "__main__":
obj = Solution()
print(obj.largestPerimeter(nums=[2, 1, 2]))
print(obj.largestPerimeter(nums=[3, 2, 3, 4]))
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