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https://leetcode.com/problems/largest-perimeter-triangle/discuss/2693748/Python-Easy-solution
class Solution: def largestPerimeter(self, nums: list[int]) -> int: nums.sort(reverse = True) while len(nums) > 2 and nums[0] >= nums[1] + nums[2]: nums.pop(0) return sum(nums[:3]) if len(nums) > 2 else 0
largest-perimeter-triangle
Python Easy solution
faraazahmed000
0
4
largest perimeter triangle
976
0.544
Easy
15,800
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2693728/PYTHONGREEDY-APPROACH-EASILY-EXPLAINED.
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) for a, b, c in zip(nums, nums[1:], nums[2:]): if b+c > a: return a+b+c return 0
largest-perimeter-triangle
✔PYTHON🐍GREEDY APPROACH, EASILY EXPLAINED.
shubhamdraj
0
7
largest perimeter triangle
976
0.544
Easy
15,801
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2693662/Python-simple-straightforward-solution
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) 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
largest-perimeter-triangle
Python simple straightforward solution
meatcodex
0
2
largest perimeter triangle
976
0.544
Easy
15,802
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2693326/python-solution
class Solution: def largestPerimeter(self, nums: List[int]) -> int: n=len(nums) if n<3: return 0 nums.sort(reverse=True) for i in range(3,n+1): if nums[i-1]+nums[i-2]>nums[i-3]: return sum(nums[i-3:i]) return 0
largest-perimeter-triangle
python solution
shashank_2000
0
2
largest perimeter triangle
976
0.544
Easy
15,803
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2693058/python3-solution.
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort() for i in range(len(nums) - 3, -1, -1): if nums[i] + nums[i + 1] > nums[i + 2]: return nums[i] + nums[i+1] + nums[i+2] else: return 0
largest-perimeter-triangle
python3 solution.
parryrpy
0
5
largest perimeter triangle
976
0.544
Easy
15,804
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692978/Python-3-Easy-solution-faster-than-96
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for i in range(3,len(nums)+1): if(nums[i-3] < nums[i-2]+nums[i-1]): return sum(nums[i-3:i]) return 0
largest-perimeter-triangle
Python 3 Easy solution faster than 96%
Ritesh2345
0
1
largest perimeter triangle
976
0.544
Easy
15,805
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692971/Python-Solution-or-Sorting-or-Greedy
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) n=len(nums) for i in range(n-2): third_side=nums[i] for j in range(i+1, n-1, 2): if nums[j]+nums[j+1]>third_side: return third_side+nums[j]+...
largest-perimeter-triangle
Python Solution | Sorting | Greedy
Siddharth_singh
0
4
largest perimeter triangle
976
0.544
Easy
15,806
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692914/Python-or-Easy-solution-using-sorting-or-few-lines-of-code
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort() for i in range(len(nums)-1,1,-1): a,b,c = nums[i-2],nums[i-1],nums[i] if c < a + b: return a+b+c return 0
largest-perimeter-triangle
Python | Easy solution using sorting | few lines of code
__Asrar
0
4
largest perimeter triangle
976
0.544
Easy
15,807
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692873/python-simple-easyToUnderstand
class Solution: def largestPerimeter(self, nums: List[int]) -> int: def triangle(a,b,c): return (a+b>c and a+c>b and b+c>a) nums.sort() l=len(nums) while l>2: if triangle(nums[-1],nums[-2],nums[-3]): return sum(nums[i] for i in range(-1,-4,-1)) num...
largest-perimeter-triangle
python simple easyToUnderstand
VignaTejReddy
0
4
largest perimeter triangle
976
0.544
Easy
15,808
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692868/PYTHON3-oror-EASY-TO-UNDERSTAND-oror-BRUTE-FORCE-SOLUTION
class Solution: def largestPerimeter(self, nums: List[int]) -> int: maxx=0 nums.sort() for i in range(0, len(nums)-2): s1=nums[i] s2=nums[i+1] s3=nums[i+2] if s2+s3>s1 and s1+s3>s2 and s1+s2>s3: if maxx<(s1+s2+s3): ...
largest-perimeter-triangle
PYTHON3 || EASY TO UNDERSTAND || BRUTE FORCE SOLUTION
pratiyushray2152
0
1
largest perimeter triangle
976
0.544
Easy
15,809
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692765/Python3-or-easy-and-simple-or-O(logN)
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for i in range(2,len(nums)): if nums[i] + nums[i - 1] > nums[i - 2]: return nums[i] + nums[i - 1] + nums[i - 2] return 0
largest-perimeter-triangle
Python3 | easy and simple | O(logN)
Kumada_Takuya
0
4
largest perimeter triangle
976
0.544
Easy
15,810
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692669/Easy-and-Faster
class Solution: def largestPerimeter(self, A: List[int]) -> int: A.sort() N = len(A) res = 0 for i in range(N - 1, 1, -1): if A[i - 2] + A[i - 1] > A[i]: return A[i - 2] + A[i - 1] + A[i] return 0
largest-perimeter-triangle
Easy and Faster
Raghunath_Reddy
0
3
largest perimeter triangle
976
0.544
Easy
15,811
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692650/Python-Easy-Solution-oror-Largest-Perimeter-Triangle
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) for a,b,c in zip(nums,nums[1:],nums[2:]): if b+c>a: return a+b+c return 0
largest-perimeter-triangle
Python Easy Solution || Largest Perimeter Triangle
Motaharozzaman1996
0
3
largest perimeter triangle
976
0.544
Easy
15,812
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692599/Python3-Sort-and-try-Max-with-concise-way-of-getting-3-edges
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort() n = len(nums) for i in range(n - 3, -1, -1): a, b, c = nums[i:i+3] # Very nice way of getting the 3 edges if a + b > c: return sum([a, b, c]) return 0
largest-perimeter-triangle
[Python3] Sort, and try Max with concise way of getting 3 edges
JoeH
0
8
largest perimeter triangle
976
0.544
Easy
15,813
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692545/Python-sort
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) 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
largest-perimeter-triangle
Python, sort
blue_sky5
0
10
largest perimeter triangle
976
0.544
Easy
15,814
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692518/Triangle-Inequality-or-Math-quickly-explained
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for c, b, a in zip(nums, nums[1:], nums[2:]): if a + b > c: return a + b + c return 0
largest-perimeter-triangle
Triangle Inequality | Math quickly explained
sr_vrd
0
3
largest perimeter triangle
976
0.544
Easy
15,815
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692467/Python-simple-solution
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for idx in range(len(nums) - 2): if nums[idx] < nums[idx+1] + nums[idx+2]: return sum(nums[idx:idx+3]) return 0
largest-perimeter-triangle
Python simple solution
Terry_Lah
0
3
largest perimeter triangle
976
0.544
Easy
15,816
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2692414/Python-Short-and-Simple
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse=True) for i in range(len(nums)-2): x = nums[i+1] + nums[i+2] if nums[i] < x: return nums[i] + x return 0
largest-perimeter-triangle
[Python] Short and Simple
Paranoidx
0
7
largest perimeter triangle
976
0.544
Easy
15,817
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2664883/Python3-solutions
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for i in range(len(nums) - 2): a = nums[i] # longest side b = nums[i + 1] c = nums[i + 2] if b + c > a: return a + b + c return 0
largest-perimeter-triangle
Python3 solutions
AnzheYuan1217
0
22
largest perimeter triangle
976
0.544
Easy
15,818
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2664883/Python3-solutions
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort(reverse = True) for a, b, c in zip(nums, nums[1:], nums[2:]): if b + c > a: return a + b + c return 0
largest-perimeter-triangle
Python3 solutions
AnzheYuan1217
0
22
largest perimeter triangle
976
0.544
Easy
15,819
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2664301/Python-or-Greedy-sorting-or-O(nlog(n))
class Solution: def largestPerimeter(self, nums: List[int]) -> int: nums.sort() i = len(nums) - 1 while i != 1: a, b, c = nums[i - 2], nums[i - 1], nums[i] if a < b + c and b < a + c and c < a + b: return a + b + c i -= 1 return 0
largest-perimeter-triangle
Python | Greedy sorting | O(nlog(n))
LordVader1
0
17
largest perimeter triangle
976
0.544
Easy
15,820
https://leetcode.com/problems/largest-perimeter-triangle/discuss/2496341/Python-or-Easy-and-Fast-Solution
class Solution: def largestPerimeter(self, nums: List[int]) -> int: # Condition of a triangle a<(b+c) and a>=b>=c nums=sorted(nums,reverse=True) 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
largest-perimeter-triangle
Python | Easy and Fast Solution
kathanbhavsar
0
88
largest perimeter triangle
976
0.544
Easy
15,821
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/310865/Python%3A-A-comparison-of-lots-of-approaches!-Sorting-two-pointers-deque-iterator-generator
class Solution: def sortedSquares(self, A: List[int]) -> List[int]: return_array = [0] * len(A) write_pointer = len(A) - 1 left_read_pointer = 0 right_read_pointer = len(A) - 1 left_square = A[left_read_pointer] ** 2 right_square = A[right_read_pointer] ** 2 w...
squares-of-a-sorted-array
Python: A comparison of lots of approaches! [Sorting, two pointers, deque, iterator, generator]
Hai_dee
386
20,500
squares of a sorted array
977
0.719
Easy
15,822
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/310865/Python%3A-A-comparison-of-lots-of-approaches!-Sorting-two-pointers-deque-iterator-generator
class Solution: def generate_sorted_squares(self, nums): # Start by doing our binary search to find where # to place the pointers. left = 0 right = len(nums) while right - left > 1: mid = left + (right - left) // 2 if nums[mid] > 0: ...
squares-of-a-sorted-array
Python: A comparison of lots of approaches! [Sorting, two pointers, deque, iterator, generator]
Hai_dee
386
20,500
squares of a sorted array
977
0.719
Easy
15,823
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/283978/Python-Two-Pointers
class Solution: def sortedSquares(self, A: List[int]) -> List[int]: result = [None for _ in A] left, right = 0, len(A) - 1 for index in range(len(A)-1, -1, -1): if abs(A[left]) > abs(A[right]): result[index] = A[left] ** 2 left += 1 els...
squares-of-a-sorted-array
Python Two Pointers
aquafie
72
10,200
squares of a sorted array
977
0.719
Easy
15,824
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1419437/Python-or-Two-Pointers-solution-or-O(n)
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: i = 0 n = len(nums) j = n - 1 new = [0] * n k = n - 1 while i <= j: if abs(nums[i]) < abs(nums[j]): new[k] = nums[j] ** 2 j -=...
squares-of-a-sorted-array
Python | Two-Pointers solution | O(n)
Shreya19595
11
1,500
squares of a sorted array
977
0.719
Easy
15,825
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2806619/Simple-python-solution-by-queue
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: res = [] num_deque = collections.deque(nums) while num_deque: left = num_deque[0] ** 2 right = num_deque[-1] ** 2 if left > right: res.append(left) num...
squares-of-a-sorted-array
😎 Simple python solution by queue
Pragadeeshwaran_Pasupathi
6
414
squares of a sorted array
977
0.719
Easy
15,826
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2406220/2-Pointers-fully-explained-or-Python-3-or-O(n)-or-79.29-faster
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: # Solution with 2 Pointers # Time Complexity: O(n) Space Complexity: O(n) """ 1. Initialize two pointers: lowValue = 0; highValue = len(nums) - 1 2. Create a list with same leng...
squares-of-a-sorted-array
2 Pointers fully explained | Python 3 | O(n) | 79.29% faster
harishmanjunatheswaran
4
169
squares of a sorted array
977
0.719
Easy
15,827
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1903311/Most-efficient-python-solution-using-two-pointers-approach.
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l=0 r=len(nums)-1 ans=[0]*len(nums) for i in range(len(nums)-1,-1,-1): if nums[l]**2<nums[r]**2: ans[i]=nums[r]**2 r-=1 else: ans[i]=nums[l]*...
squares-of-a-sorted-array
Most efficient python solution using two-pointers approach.
tkdhimanshusingh
4
258
squares of a sorted array
977
0.719
Easy
15,828
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1874940/Python3-Two-Pointers-approach
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: length = len(nums) start, end = 0, length - 1 res = [0]*length index = -1 while start <= end: if abs(nums[start]) > abs(nums[end]): res[index] = nums[start] * nums[start] ...
squares-of-a-sorted-array
Python3 - Two Pointers approach
eliasroodrigues
4
167
squares of a sorted array
977
0.719
Easy
15,829
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1541316/Python-O-(n)-Solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: i, j = 0, len(nums)-1 res = [None] * (j + 1) for r in range(j, -1, -1): if abs(nums[i]) > abs(nums[j]): res[r] = nums[i] ** 2 i += 1 ...
squares-of-a-sorted-array
Python O (n) Solution
aaffriya
4
541
squares of a sorted array
977
0.719
Easy
15,830
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2319821/Python-O(n)-solution-explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: result = [] left, right = 0, len(nums) - 1 while left <= right: if nums[left] ** 2 < nums[right] ** 2: result.append(nums[right] ** 2) right -= 1 ...
squares-of-a-sorted-array
Python O(n) solution explained
Balance-Coffee
3
204
squares of a sorted array
977
0.719
Easy
15,831
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2163842/Small-and-large-pointer-approach-or-Python-or-90
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: sortedSquare = [0 for _ in range(len(nums))] smallidx= 0 largeidx= len(nums)-1 for idx in reversed(range(len(nums))): smallVal = nums[smallidx] largeVal = nums[largeidx] if abs...
squares-of-a-sorted-array
Small and large pointer approach | Python | 90%
bliqlegend
3
159
squares of a sorted array
977
0.719
Easy
15,832
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1476082/O(N*log(N))-to-O(N)-oror-Intuition-explained-greatergreater-Merge-Process
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: output = [] for i in nums: square = i * i output.append(square) output.sort() return output
squares-of-a-sorted-array
O(N*log(N)) to O(N) || Intuition explained -->> Merge Process
aarushsharmaa
3
329
squares of a sorted array
977
0.719
Easy
15,833
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1476082/O(N*log(N))-to-O(N)-oror-Intuition-explained-greatergreater-Merge-Process
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: n = len(nums) answer = [] #i will point to the right side, that is, increasing array from ith index to (n-1)th index, or from 1st positive element #j will point to left side, that is, increasing arr...
squares-of-a-sorted-array
O(N*log(N)) to O(N) || Intuition explained -->> Merge Process
aarushsharmaa
3
329
squares of a sorted array
977
0.719
Easy
15,834
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1035653/Python3-%22Two-pointers-approach%22
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l = [] i = 0 j = len(nums)-1 while i <= j: a= nums[i]*nums[i] b = nums[j]*nums[j] if a > b: l.insert(0,a) i += 1 else: ...
squares-of-a-sorted-array
Python3 "Two pointers approach"
EklavyaJoshi
3
186
squares of a sorted array
977
0.719
Easy
15,835
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2415230/Python-O(n)-Accurate-Method-Two-Pointers-l-and-r-oror-Documented
class Solution: # Two Pointer: O(n) def sortedSquares(self, nums: List[int]) -> List[int]: n = len(nums) result = [0] * n # initialize result array with 0 l, r = 0, n-1 # two pointers left and right of the array # start from last posit...
squares-of-a-sorted-array
[Python] O(n)-Accurate Method - Two Pointers l & r || Documented
Buntynara
2
56
squares of a sorted array
977
0.719
Easy
15,836
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2054712/Python-Solution-91-fast-and-99-less-space
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l=[] for i in range(len(nums)): a=nums[i]*nums[i] nums[i]=a nums.sort() return nums
squares-of-a-sorted-array
Python Solution 91% fast and 99% less space
pranjalmishra334
2
178
squares of a sorted array
977
0.719
Easy
15,837
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1899743/Python-3-Solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: first = 0 last = len(nums) - 1 answer = [0] * len(nums) while first <= last: left, right = abs(nums[first]), abs(nums[last]) if left > right: answer[last - first] = left ** ...
squares-of-a-sorted-array
Python 3 Solution
AprDev2011
2
117
squares of a sorted array
977
0.719
Easy
15,838
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2472916/Python-two-solutions.
class Solution: def sortedSquares(self, nums): listLength = len(nums) sortedNums = [0]*listLength # n extra space for i in range(listLength): # O(n) if nums[i] < 0: nums[i] *= -1 i = listLength-1 l, r = 0, listLength-1 ...
squares-of-a-sorted-array
Python two solutions.
OsamaRakanAlMraikhat
1
95
squares of a sorted array
977
0.719
Easy
15,839
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2472916/Python-two-solutions.
class Solution: def sortedSquares(self, nums): for i in range(0,len(nums)): # O(n) nums[i] *= nums[i] # O(1) return sorted(nums) # O(nlogn)
squares-of-a-sorted-array
Python two solutions.
OsamaRakanAlMraikhat
1
95
squares of a sorted array
977
0.719
Easy
15,840
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2463693/Python-Solution-builtin-function-oror-beginner-friendly
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l=[] for i in range(len(nums)): l.append(nums[i]*nums[i]) l.sort() return l
squares-of-a-sorted-array
Python Solution - builtin function || beginner friendly
T1n1_B0x1
1
61
squares of a sorted array
977
0.719
Easy
15,841
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2337496/EASY-5-line-python-code
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: squares = [] for i in nums: squares.append(int(i*i)) squares.sort() return squares
squares-of-a-sorted-array
EASY 5 line python code
adithya_s_k
1
59
squares of a sorted array
977
0.719
Easy
15,842
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2309995/Python-Two-Different-Two-Pointer-Solutions
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: res = [] l, r = 0, len(nums) - 1 # With pointers are each end, append the one that has the greater square to return array while l <= r: lsquare = nums[l] * nums[l] rsquare = nums[r] * nums...
squares-of-a-sorted-array
Python - Two Different Two Pointer Solutions
Reinuity
1
75
squares of a sorted array
977
0.719
Easy
15,843
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2309995/Python-Two-Different-Two-Pointer-Solutions
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: # Initialize an array with dummy info of length nums so you can start placing largest values from right to left res = [None] * len(nums) l, r = 0, len(nums) - 1 # Iterate through your initialized array from right ...
squares-of-a-sorted-array
Python - Two Different Two Pointer Solutions
Reinuity
1
75
squares of a sorted array
977
0.719
Easy
15,844
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2309995/Python-Two-Different-Two-Pointer-Solutions
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: # Square for i in range(len(nums)): nums[i] = nums[i] * nums[i] # Sort nums.sort() return nums
squares-of-a-sorted-array
Python - Two Different Two Pointer Solutions
Reinuity
1
75
squares of a sorted array
977
0.719
Easy
15,845
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2238508/Python3-Explanation-Achieving-O(N)-using-Two-Pointers
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: # Initialize two pointers at opposite ends of the array which will be used for comparisons l = 0 r = len(nums) - 1 # Populate array with null values to match the length of the 'nums' array result = [None f...
squares-of-a-sorted-array
[Python3] [Explanation] Achieving O(N) using Two Pointers
shrined
1
74
squares of a sorted array
977
0.719
Easy
15,846
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2231896/Python-Two-Pointers-Time-O(N)-or-Space-O(N)-or-O(1)-Explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: result = [0 for i in range(len(nums))] left = 0 right = len(nums) - 1 for i in range(len(result) - 1, -1, -1): if abs(nums[left]) >= abs(nums[right]): result[i] = nums[left] **...
squares-of-a-sorted-array
[Python] Two Pointers Time O(N) | Space O(N) or O(1) Explained
Symbolistic
1
110
squares of a sorted array
977
0.719
Easy
15,847
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2231896/Python-Two-Pointers-Time-O(N)-or-Space-O(N)-or-O(1)-Explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: result = [i for i in range(len(nums))] left = 0 right = len(nums) - 1 for i in range(len(result) - 1, -1, -1): leftNum = nums[left] ** 2 rightNum = nums[right] ** 2 ...
squares-of-a-sorted-array
[Python] Two Pointers Time O(N) | Space O(N) or O(1) Explained
Symbolistic
1
110
squares of a sorted array
977
0.719
Easy
15,848
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2175915/Python3-oror-Simplest-and-Raw-logic-oror-O(N)-Sol.-Beats-99-oror-Explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: n = len(nums) res = [] # check last index of -ve num neg = -1 for i in range(n): if nums[i] > -1: break else: neg = i # If no +ve num found retur...
squares-of-a-sorted-array
Python3 || Simplest and Raw logic || O(N) Sol. Beats 99% || Explained
Dewang_Patil
1
174
squares of a sorted array
977
0.719
Easy
15,849
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2094098/Python3-from-nlogn-to-O(N)
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: # return self.squaresOfASortedArrayOptimalTwo(nums) return self.squaresOfASortedArrayWithSorting(nums) # O(n) || O(n) # runtime: 344ms 36.34% def squaresOfASortedArrayOptimalTwo(self, array): if not array: ...
squares-of-a-sorted-array
Python3 from nlogn to O(N)
arshergon
1
174
squares of a sorted array
977
0.719
Easy
15,850
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2061459/simple-python-solution-or208-ms-faster-than-98.07-of-Python3-online-submissions
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: for i in range(len(nums)): nums[i] = nums[i] * nums[i] return sorted(nums)
squares-of-a-sorted-array
simple python solution |208 ms, faster than 98.07% of Python3 online submissions
user3245t
1
58
squares of a sorted array
977
0.719
Easy
15,851
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2041701/Python3-or-Two-solutions-explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: return sorted([x * x for x in nums])
squares-of-a-sorted-array
Python3 | Two solutions explained
manfrommoon
1
169
squares of a sorted array
977
0.719
Easy
15,852
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2041701/Python3-or-Two-solutions-explained
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: left_pointer, right_pointer = 0, len(nums) - 1 result = [] while left_pointer <= right_pointer: if abs(nums[left_pointer]) >= abs(nums[right_pointer]): result.append(nums[left_pointer]**2) ...
squares-of-a-sorted-array
Python3 | Two solutions explained
manfrommoon
1
169
squares of a sorted array
977
0.719
Easy
15,853
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1902195/100-working-Easiest-method-with-O(n.logn)-Time-complexity
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: for i in range(len(nums)): nums[i]=nums[i]**2 nums.sort() return nums
squares-of-a-sorted-array
100% working Easiest method with O(n.logn) Time complexity
tkdhimanshusingh
1
96
squares of a sorted array
977
0.719
Easy
15,854
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1876862/Python-l-Pointers
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: n = len(nums) i = 0 j = n-1 p = n-1 square = [0]*n while i <= j: x = nums[i]**2 y = nums[j]**2 if x > y: square[p] = x i += 1 else: square[p] = y j -= 1 p -= 1 return square
squares-of-a-sorted-array
Python l Pointers
morpheusdurden
1
85
squares of a sorted array
977
0.719
Easy
15,855
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1858119/python-easy-to-read-and-understand-or-two-pointers
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: res = [] i, j = 0, len(nums)-1 while i <= j: if abs(nums[i]) > abs(nums[j]): res = [nums[i]**2] + res i = i+1 else: res = [nums[j]**2] + res...
squares-of-a-sorted-array
python easy to read and understand | two-pointers
sanial2001
1
208
squares of a sorted array
977
0.719
Easy
15,856
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1760386/2-Solutions%3A-1-row-solution-and-two-pointers-solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: return sorted([x**2 for x in nums])
squares-of-a-sorted-array
2 Solutions: 1-row solution and two-pointers solution
lior1509
1
139
squares of a sorted array
977
0.719
Easy
15,857
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1760386/2-Solutions%3A-1-row-solution-and-two-pointers-solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: left,right = 0,len(nums)-1 results = [] while left<=right: if abs(nums[left])>abs(nums[right]): results.append(nums[left]**2) left += 1 ...
squares-of-a-sorted-array
2 Solutions: 1-row solution and two-pointers solution
lior1509
1
139
squares of a sorted array
977
0.719
Easy
15,858
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1734661/Python3-%3A-Two-line-solution-with-lambda-Timsort-O(N)
class Solution: def sortedSquares(self, nums: [int]) -> [int]: sorted_nums = sorted(nums, key=lambda x:abs(x)) # not using sort() in order not to overwrite the input array return [x**2 for x in sorted_nums]
squares-of-a-sorted-array
Python3 : Two line solution with lambda, Timsort, O(N)
poobhat
1
113
squares of a sorted array
977
0.719
Easy
15,859
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1612960/Python3-Simple-O(n)-Two-pointer-approach
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: &nbsp; &nbsp; &nbsp; &nbsp;length = len(nums) ans = [0] * length i, j, k = 0, length - 1, length -1 while(i <= j): first, second = abs(nums[i]), abs(nums[j]) if first < second: ans[k] = second *...
squares-of-a-sorted-array
Python3 Simple O(n) Two pointer approach
rajatrj20
1
285
squares of a sorted array
977
0.719
Easy
15,860
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1561414/O(n-log-n)-faster-than-the-O(n)-solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: return sorted([x*x for x in nums])
squares-of-a-sorted-array
O(n log n) faster than the O(n) solution?
hemersontacon
1
204
squares of a sorted array
977
0.719
Easy
15,861
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1561414/O(n-log-n)-faster-than-the-O(n)-solution
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: result = [] i = 0 j = len(nums)-1 while i <= j: if abs(nums[i]) > abs(nums[j]): x = nums[i] i+=1 else: x = nums[j] j-=1 ...
squares-of-a-sorted-array
O(n log n) faster than the O(n) solution?
hemersontacon
1
204
squares of a sorted array
977
0.719
Easy
15,862
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1524041/An-amazing-approach-in-O(n)-by-Sanchez-oror-Python
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l,r=0,len(nums)-1 co=r out=[0]*(r+1) while(l<=r): if abs(nums[l])>abs(nums[r]): out[co]=nums[l]**2 l+=1 else: out[co]=nums[r]**2 ...
squares-of-a-sorted-array
An amazing approach in O(n) by Sanchez || Python
RickSanchez101
1
185
squares of a sorted array
977
0.719
Easy
15,863
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1450819/Python3-Solution-without-reverse
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: res = [0] * len(nums) left, right = 0, len(nums) - 1 while left <= right: left_val = abs(nums[left]) right_val = abs(nums[right]) if left_val < right_val:...
squares-of-a-sorted-array
[Python3] Solution without reverse
maosipov11
1
71
squares of a sorted array
977
0.719
Easy
15,864
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1223760/Python3-decent-solution-with-comments-as-explanation
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: n = len(nums) i = 0 # to traverse from the begining of the list j = n - 1 # to traverse from the ending of the list k = n - 1 # to fill new list from end # create same size list before hand, if we just cr...
squares-of-a-sorted-array
Python3 decent solution with comments as explanation
NagaVenkatesh
1
221
squares of a sorted array
977
0.719
Easy
15,865
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/1146965/99.9-faster-solution-with-2-lines-of-code-and-easy-to-understand
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: res = [i*i for i in nums] res.sort(reverse=False) return res
squares-of-a-sorted-array
99.9% faster solution with 2 lines of code and easy to understand
vashisht7
1
151
squares of a sorted array
977
0.719
Easy
15,866
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/632502/JavaPython3-2-pointers
class Solution: def sortedSquares(self, A: List[int]) -> List[int]: lo, hi = 0, len(A)-1 ans = [None]*len(A) while lo <= hi: if abs(A[lo]) < abs(A[hi]): ans[hi - lo] = A[hi]**2 hi -= 1 else: ans[hi - lo] = A[lo]**2 ...
squares-of-a-sorted-array
[Java/Python3] 2 pointers
ye15
1
163
squares of a sorted array
977
0.719
Easy
15,867
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/632502/JavaPython3-2-pointers
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: ans = [0] * len(nums) lo, hi = 0, len(nums)-1 for i in reversed(range(len(nums))): if abs(nums[lo]) >= abs(nums[hi]): ans[i] = nums[lo] * nums[lo] lo += 1 else: ...
squares-of-a-sorted-array
[Java/Python3] 2 pointers
ye15
1
163
squares of a sorted array
977
0.719
Easy
15,868
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/632502/JavaPython3-2-pointers
class Solution: def sortedSquares(self, A: List[int]) -> List[int]: for i in range(len(A)): A[i] *= A[i] A.sort() return A
squares-of-a-sorted-array
[Java/Python3] 2 pointers
ye15
1
163
squares of a sorted array
977
0.719
Easy
15,869
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/353723/Solution-in-Python-3-(beats-~99)-(one-line)
class Solution: def sortedSquares(self, A: List[int]) -> List[int]: return sorted(i*i for i in A) - Junaid Mansuri (LeetCode ID)@hotmail.com
squares-of-a-sorted-array
Solution in Python 3 (beats ~99%) (one line)
junaidmansuri
1
568
squares of a sorted array
977
0.719
Easy
15,870
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2849405/Python-Simple-one-liner-code!
class Solution(object): def sortedSquares(self, nums): return sorted([i ** 2 for i in nums])
squares-of-a-sorted-array
✅Python - Simple one liner code!
Nematulloh
0
1
squares of a sorted array
977
0.719
Easy
15,871
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2847163/Python-1-line
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: return sorted([value ** 2 for value in nums])
squares-of-a-sorted-array
Python 1 line
yijiun
0
1
squares of a sorted array
977
0.719
Easy
15,872
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2846743/python3
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: return sorted(list(map(lambda i: i ** 2, nums)))
squares-of-a-sorted-array
python3
Geniuss87
0
1
squares of a sorted array
977
0.719
Easy
15,873
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2830930/Squares-of-a-Sorted-Array-or-Python-3.x-or-O(n)
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: result = [] left = 0 right = len(nums) - 1 while True: if left == right: result.append(nums[left] * nums[left]) break if abs(nums[left]) >= abs(nums[right]):...
squares-of-a-sorted-array
Squares of a Sorted Array | Python 3.x | O(n)
SnLn
0
3
squares of a sorted array
977
0.719
Easy
15,874
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2830775/Easy-to-understand-two-liner-solution-(faster-than-96-solutions)-or-Python-3
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: l=[i**2 for i in nums] l.sort() return l
squares-of-a-sorted-array
Easy to understand two liner solution (faster than 96% solutions) | Python 3
divyankrawat2021
0
2
squares of a sorted array
977
0.719
Easy
15,875
https://leetcode.com/problems/squares-of-a-sorted-array/discuss/2828990/Simple-Python-program-with-no-extra-space-needed
class Solution: def sortedSquares(self, nums: List[int]) -> List[int]: for i in range(len(nums)): nums[i] = nums[i]**2 nums.sort() return nums
squares-of-a-sorted-array
Simple Python program with no extra space needed
shashank00818
0
1
squares of a sorted array
977
0.719
Easy
15,876
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1464950/Python3-Longest-Turbulent-Subarray-O(n)-(one-pass)
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: cur, mx, t = 1, 1, None for i in range(1, len(arr)): # Start of subarray if t == None: if arr[i] != arr[i-1]: cur = 2 t = arr[i] > arr[i-1] ...
longest-turbulent-subarray
✅ [Python3] Longest Turbulent Subarray O(n) (one pass)
vscala
2
207
longest turbulent subarray
978
0.474
Medium
15,877
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1464825/Python3-No-DP-Simple-Solution-or-O(N)-Time-and-O(1)-Space
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: def cmp(odd, prev, curr): return curr < prev if odd else curr > prev n = len(arr) ans = 1 for flip in [False, True]: l = 0 for r in range(1, n): odd = r &amp; 1 ...
longest-turbulent-subarray
[Python3] No DP Simple Solution | O(N) Time & O(1) Space
chaudhary1337
2
140
longest turbulent subarray
978
0.474
Medium
15,878
https://leetcode.com/problems/longest-turbulent-subarray/discuss/2745829/Python-TC-%3A-97-SC%3A-O(1)
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: l, r ,output, n =0, 0, 0, len(arr) if n==1: return 1 while r < n: while r<n-1 and (arr[r-1]>arr[r]<arr[r+1] or arr[r-1]<arr[r]>arr[r+1]): r+=1 while l < r and arr[l]==arr[l...
longest-turbulent-subarray
Python T/C : 97% S/C: O(1)
user6230Om
1
145
longest turbulent subarray
978
0.474
Medium
15,879
https://leetcode.com/problems/longest-turbulent-subarray/discuss/2841656/DP-with-Greedy-Kadane's-algorithm-python-one-pass-solution
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: # [inc, dec] N = len(arr) dp = [[1, 1] for _ in range(N)] for i in range(1, N): j = i - 1 if arr[i] > arr[j]: dp[i][0] = max(dp[i][0], dp[j][1] + 1) elif ...
longest-turbulent-subarray
DP with Greedy / Kadane's algorithm / python one-pass solution
Lara_Craft
0
5
longest turbulent subarray
978
0.474
Medium
15,880
https://leetcode.com/problems/longest-turbulent-subarray/discuss/2797605/Python-(Simple-Dynamic-Programming)
class Solution: def maxTurbulenceSize(self, arr): n = len(arr) up, down = [0]*n, [0]*n up[0], down[0] = 1, 1 for i in range(1,n): if arr[i] > arr[i-1]: up[i] = down[i-1] + 1 down[i] = 1 elif arr[i] < arr[i-1]: ...
longest-turbulent-subarray
Python (Simple Dynamic Programming)
rnotappl
0
2
longest turbulent subarray
978
0.474
Medium
15,881
https://leetcode.com/problems/longest-turbulent-subarray/discuss/2784375/O(N)-solution-with-flags
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: res = 1 curr = 1 flag = None max_curr = 1 if len(arr) == 1: return 1 if arr[1]>arr[0]: flag = False else: flag = True ...
longest-turbulent-subarray
O(N) solution with flags
pranav_hq
0
5
longest turbulent subarray
978
0.474
Medium
15,882
https://leetcode.com/problems/longest-turbulent-subarray/discuss/2605735/Python-3-sliding-window-super-easy-%2B-explanation
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: if len(set(arr)) == 1: return 1 longest = 2 curr = 2 for i in range(1, len(arr) - 1): if arr[i - 1] > arr[i] and arr[i] < arr[i + 1]: curr += 1 e...
longest-turbulent-subarray
Python 3 sliding window - super easy + explanation
zakmatt
0
16
longest turbulent subarray
978
0.474
Medium
15,883
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1981353/PYTHON-SOL-LEETCODE-WITH-COMPLETE-EXPLANATION-oror-WELL-EXPLAINED-oror-SLIDING-WINDOW-oror
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: def cmp(a,b): if a == b: return 0 if a > b : return 1 return -1 n = len(arr) ans = 1 prev = 0 for i in range(1,n): c = cmp(arr[i-1],arr[i]) ...
longest-turbulent-subarray
PYTHON SOL LEETCODE WITH COMPLETE EXPLANATION || WELL EXPLAINED || SLIDING WINDOW ||
reaper_27
0
45
longest turbulent subarray
978
0.474
Medium
15,884
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1548869/Python3-Deque-Sliding-Window-Solution
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: def iterating(arr): prev = arr[0] tmp = None for x in arr[1:]: if x == prev: yield '=' elif x > prev: yield '<' ...
longest-turbulent-subarray
[Python3] Deque Sliding Window Solution
whitehatbuds
0
52
longest turbulent subarray
978
0.474
Medium
15,885
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1465119/Easiest-Greedy-Approach-oror-97-faster-oror-Well-Explained-with-Example
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: n=len(arr) if max(arr)==min(arr): return 1 # If all elements are equal. if n<3: return n # if size of array is less then 3. left, right, res = [0]*n, [0]*n, [0]*n for i in rang...
longest-turbulent-subarray
🐍 Easiest - Greedy Approach || 97% faster || Well-Explained with Example 📌📌
abhi9Rai
0
51
longest turbulent subarray
978
0.474
Medium
15,886
https://leetcode.com/problems/longest-turbulent-subarray/discuss/1001053/Python-3-Faster-than-100
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: if len(arr) <= 1: return len(arr) if len(arr) == 2 and arr[0] != arr[1]: return 2 if len(arr) == 2: return 1 max_len = 2 ans = max_len is_last_increasing =...
longest-turbulent-subarray
Python 3 Faster than 100%
EddyLin
0
50
longest turbulent subarray
978
0.474
Medium
15,887
https://leetcode.com/problems/longest-turbulent-subarray/discuss/982318/Python3-linear-scan-O(N)
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: ans = cnt = 1 prev = 0 for i in range(1, len(arr)): if arr[i-1] == arr[i]: cnt = 1 elif prev * (arr[i] - arr[i-1]) >= 0: cnt = 2 # reset else: cnt += 1 ans = max(ans, cnt) ...
longest-turbulent-subarray
[Python3] linear scan O(N)
ye15
0
60
longest turbulent subarray
978
0.474
Medium
15,888
https://leetcode.com/problems/longest-turbulent-subarray/discuss/982318/Python3-linear-scan-O(N)
class Solution: def maxTurbulenceSize(self, arr: List[int]) -> int: ans = cnt = 0 for i in range(len(arr)): if i >= 2 and (arr[i-2] > arr[i-1] < arr[i] or arr[i-2] < arr[i-1] > arr[i]): cnt += 1 elif i >= 1 and arr[i-1] != arr[i]: cnt = 2 else: cnt = 1 ...
longest-turbulent-subarray
[Python3] linear scan O(N)
ye15
0
60
longest turbulent subarray
978
0.474
Medium
15,889
https://leetcode.com/problems/longest-turbulent-subarray/discuss/470159/Python3-96.53-(496-ms)25.00-(16.7-MB)-O(n)-time-O(1)-space-one-pointer
class Solution: def maxTurbulenceSize(self, A: List[int]) -> int: index = 0 A_len = len(A) A_len_ = A_len - 1 current_length = 1 max_length = 1 while (A_len - index > max_length): while (index < A_len_ and A[index + 1] == A[index]): ...
longest-turbulent-subarray
Python3 96.53% (496 ms)/25.00% (16.7 MB) -- O(n) time / O(1) space -- one pointer
numiek_p
0
90
longest turbulent subarray
978
0.474
Medium
15,890
https://leetcode.com/problems/distribute-coins-in-binary-tree/discuss/2797049/Very-short-concise-Python-solution-with-DFS
class Solution: def distributeCoins(self, v: Optional[TreeNode], parent=None) -> int: if v is None: return 0 m = self.distributeCoins(v.left, v) + self.distributeCoins(v.right, v) if v.val != 1: parent.val += v.val - 1 m += abs(v.val - 1) return m
distribute-coins-in-binary-tree
Very short, concise Python solution with DFS
metaphysicalist
0
4
distribute coins in binary tree
979
0.721
Medium
15,891
https://leetcode.com/problems/distribute-coins-in-binary-tree/discuss/1635888/Recursive-solution-76-speed
class Solution: def distributeCoins(self, root: TreeNode) -> int: count = 0 def traverse(node: TreeNode) -> int: nonlocal count if not node: return 0 move = node.val + traverse(node.left) + traverse(node.right) - 1 count += abs(move) ...
distribute-coins-in-binary-tree
Recursive solution, 76% speed
EvgenySH
0
124
distribute coins in binary tree
979
0.721
Medium
15,892
https://leetcode.com/problems/distribute-coins-in-binary-tree/discuss/982693/Python3-post-order-dfs
class Solution: def distributeCoins(self, root: TreeNode) -> int: def fn(node): """Return surplus and number of moves at node.""" if not node: return 0, 0 # surplus | move xtr0, mv0 = fn(node.left) xtr1, mv1 = fn(node.right) return node.v...
distribute-coins-in-binary-tree
[Python3] post-order dfs
ye15
0
87
distribute coins in binary tree
979
0.721
Medium
15,893
https://leetcode.com/problems/distribute-coins-in-binary-tree/discuss/982693/Python3-post-order-dfs
class Solution: def distributeCoins(self, root: TreeNode) -> int: def fn(node): """Return flux (surplus/deficit) of node.""" nonlocal ans if not node: return 0 left, right = fn(node.left), fn(node.right) ans += abs(left) + abs(right) ...
distribute-coins-in-binary-tree
[Python3] post-order dfs
ye15
0
87
distribute coins in binary tree
979
0.721
Medium
15,894
https://leetcode.com/problems/unique-paths-iii/discuss/1535158/Python-Backtracking%3A-Easy-to-understand-with-Explanation
class Solution: def uniquePathsIII(self, grid: List[List[int]]) -> int: # first, prepare the starting and ending points # simultaneously, record all the non-obstacle coordinates start = end = None visit = set() for i in range(len(grid)): for j in range(len(grid[0])): ...
unique-paths-iii
Python Backtracking: Easy-to-understand with Explanation
zayne-siew
74
3,500
unique paths iii
980
0.797
Hard
15,895
https://leetcode.com/problems/unique-paths-iii/discuss/1535158/Python-Backtracking%3A-Easy-to-understand-with-Explanation
class Solution: def uniquePathsIII(self, grid: List[List[int]]) -> int: m, n = len(grid), len(grid[0]) # iterate through the grid to get relevant info start = None # to store starting point count = 0 # to count number of squares to walk over for i in range(m): ...
unique-paths-iii
Python Backtracking: Easy-to-understand with Explanation
zayne-siew
74
3,500
unique paths iii
980
0.797
Hard
15,896
https://leetcode.com/problems/unique-paths-iii/discuss/1184821/Python3-backtracking-and-bitmask-dp
class Solution: def uniquePathsIII(self, grid: List[List[int]]) -> int: m, n = len(grid), len(grid[0]) # dimensions empty = 0 for i in range(m): for j in range(n): if grid[i][j] == 1: start = (i, j) elif grid[i][j] == 0: empty += 1 # empty squar...
unique-paths-iii
[Python3] backtracking & bitmask dp
ye15
7
230
unique paths iii
980
0.797
Hard
15,897
https://leetcode.com/problems/unique-paths-iii/discuss/1184821/Python3-backtracking-and-bitmask-dp
class Solution: def uniquePathsIII(self, grid: List[List[int]]) -> int: m, n = len(grid), len(grid[0]) mask = 0 for i in range(m): for j in range(n): if grid[i][j] == 1: start = (i, j) if grid[i][j] in (-1, 1): mask ^= 1 << i*n+j ...
unique-paths-iii
[Python3] backtracking & bitmask dp
ye15
7
230
unique paths iii
980
0.797
Hard
15,898
https://leetcode.com/problems/unique-paths-iii/discuss/1842954/Clean-Python-DFSBacktracking-Solution
class Solution: def uniquePathsIII(self, grid: List[List[int]]) -> int: row_movements = [1, -1, 0, 0] # Possible changes in row index col_movements = [0, 0, 1, -1] # Possible changes in row index ways = 0 # Answer variable max_row = len(grid) max_col = len(grid[0]) to...
unique-paths-iii
Clean Python DFS/Backtracking Solution
anCoderr
3
130
unique paths iii
980
0.797
Hard
15,899