Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Improve my LeetCode Python Pivot Index Code
Although the code itself works, it's not able to work with large arrays as leetcode returns it as "Time Limit Exceeded" since my code takes along time to go over and return the Pivot Index can you help me improve my code so that it return the index. Thank you
class Solution:
def pivotIndex(self, nums):
for i in range(len(nums)):
if sum(nums[:i]) == sum(nums[i+1:]):
return i
return -1
![Time Limit Exceeded
Last executed input
Time Submitted
09/26/2022 02:05
09/26/2022 02:01
09/26/2022 01:46
09/26/2022 01:46
09/26/2022 01:46
E Problems
Details >
[-470, -906,638, -174, -672, -187,-873, -56... View Al
Status
Time Limit Exceeded
Runtime Error
Runtime Error
X Pick One
Runtime Memory
NXA
N/A
N/A
N/A
N/A
N/A
Lar
py
py
py
py
py
< Prev 724/2421 Next >
1 ▾
2▾
PRAFET
3
4▾
5 ▾
6
7
8
9
10
class Solution:
def pivotIndex(self, nums: List[int]) -> int:
Testcase Run Code Result
Your input
Output
Accepted Runtime: 56 ms
Expected
Console
for i in range (len (nums)):
if sum(nums[:i])
return i
==
return -1
▲
Debugger
[1,7,3,6,5,6]
3
3
Use Example Testcases
sum(nums [i+1:]):
Run Code
(?
Diff
Submit](https://content.bartleby.com/qna-images/question/0031ef90-7238-48c8-8396-4aa60b121014/673aad3b-e67d-4c35-862a-245ffeffb73d/d7t33we_processed.png)
Transcribed Image Text:Time Limit Exceeded
Last executed input
Time Submitted
09/26/2022 02:05
09/26/2022 02:01
09/26/2022 01:46
09/26/2022 01:46
09/26/2022 01:46
E Problems
Details >
[-470, -906,638, -174, -672, -187,-873, -56... View Al
Status
Time Limit Exceeded
Runtime Error
Runtime Error
X Pick One
Runtime Memory
NXA
N/A
N/A
N/A
N/A
N/A
Lar
py
py
py
py
py
< Prev 724/2421 Next >
1 ▾
2▾
PRAFET
3
4▾
5 ▾
6
7
8
9
10
class Solution:
def pivotIndex(self, nums: List[int]) -> int:
Testcase Run Code Result
Your input
Output
Accepted Runtime: 56 ms
Expected
Console
for i in range (len (nums)):
if sum(nums[:i])
return i
==
return -1
▲
Debugger
[1,7,3,6,5,6]
3
3
Use Example Testcases
sum(nums [i+1:]):
Run Code
(?
Diff
Submit
![Given an array of integers nums, calculate the pivot index of this array.
The pivot index is the index where the sum of all the numbers strictly to
the left of the index is equal to the sum of all the numbers strictly to the
index's right.
If the index is on the left edge of the array, then the left sum is
because there are no elements to the left. This also applies to the right
edge of the array.
Return the leftmost pivot index. If no such index exists, return -1.
Example 1:
Input: nums
Output: 3
=
[1,7,3,6,5,6]
Explanation:
The pivot index is 3.
Left sum = nums [0] + nums [1] + nums [2] = 1 + 7 + 3 = 11
Right sum = nums[4] + nums [5] = 5 + 6 = 11
2▾
3
45678 ag
4 ▾
10
▾
class Solution:
def pivotIndex(self, nums: List[int]) -> int:
for i in range (len(nums)):
if sum(nums[:i])
return i
Testcase Run Code Result
Your input
Output
return -1
Accepted Runtime: 56 ms
Expected
Debugger
[1,7,3,6,5,6]
3
3
==
sum(nums [i+1:]):
Diff](https://content.bartleby.com/qna-images/question/0031ef90-7238-48c8-8396-4aa60b121014/673aad3b-e67d-4c35-862a-245ffeffb73d/ysyfmg4_processed.png)
Transcribed Image Text:Given an array of integers nums, calculate the pivot index of this array.
The pivot index is the index where the sum of all the numbers strictly to
the left of the index is equal to the sum of all the numbers strictly to the
index's right.
If the index is on the left edge of the array, then the left sum is
because there are no elements to the left. This also applies to the right
edge of the array.
Return the leftmost pivot index. If no such index exists, return -1.
Example 1:
Input: nums
Output: 3
=
[1,7,3,6,5,6]
Explanation:
The pivot index is 3.
Left sum = nums [0] + nums [1] + nums [2] = 1 + 7 + 3 = 11
Right sum = nums[4] + nums [5] = 5 + 6 = 11
2▾
3
45678 ag
4 ▾
10
▾
class Solution:
def pivotIndex(self, nums: List[int]) -> int:
for i in range (len(nums)):
if sum(nums[:i])
return i
Testcase Run Code Result
Your input
Output
return -1
Accepted Runtime: 56 ms
Expected
Debugger
[1,7,3,6,5,6]
3
3
==
sum(nums [i+1:]):
Diff
Expert Solution
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In this question we have improve the python code execution for large data.
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