Homework #152
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Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
434. Number of Segments in a Stringclass Solution:
def countSegments(self, s: str) -> int:
return len(s.split()) #引用python的builtin函数1869. Longer Contiguous Segments of Ones than Zerosclass Solution:
def checkZeroOnes(self, s: str) -> bool:
one_list = s.split("0") #按0分隔开
zero_list = s.split("1") #按1分隔开
one_max = max(one_list, key=len) #取1中长度最大的
zero_max = max(zero_list, key=len) #取0中长度最大的
return len(one_max) > len(zero_max) #比较字符串的长度1784. Check if Binary String Has at Most One Segment of Onesclass Solution:
def checkOnesSegment(self, s: str) -> bool:
return '01' not in s #开头是1，最多只有含1的一个片段，如果为false时字符串中会出现‘01’，因此需要判断这个852. Peak Index in a Mountain Arrayclass Solution:
def peakIndexInMountainArray(self, arr: List[int]) -> int:
l = 0 #初始化左边的index
r = len(arr) - 1 #初始化右边的index
while l < r:
m = (l+r) //2 #运用二分法，取除以2的整数部分
if arr[m] < arr[m+1]: #如果中间的左边小于右边，(m+1)赋值给左边
l = m+1
r = r
else: #如果中间的左边大于右边，m赋值给右边
l = l
r = m
return l #区间不断缩小，最后返回极值162. Find Peak Elementclass Solution:
def findPeakElement(self, nums: List[int]) -> int:
i=0
j=len(nums)-1 #i, j取array的最左和最右的index
while(i<j):
mid=(i+j)//2 #取除以2后的整数部分
if(nums[mid]<nums[mid+1]): #中间相邻的两个数进行比较
i=mid+1 #当左边小于右边，相邻的数的右边作为新的i
else:
j=mid #当左边大于右边，相邻的数的左边作为新的j
return i #返回i的值，此时的index对应的是全部范围的极大值 |
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@yangxingye1 |
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Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
|
@yangxingye1 |
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
1 similar comment
Good Job!!! @yangxingye1Python homework:
Numpy homework:
Pandas homework:
|
iphysresearch
modified the milestones:
Leetcode HW finished,
Python/Numpy/Pandas HW completed
|
@yangxingye1 |
iphysresearch
approved these changes
Jan 4, 2024
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@ljq2088
完成Python基础+拓展作业，Matplotlib+Seaborn数据可视化作业，Sklearn建模作业！
There was a problem hiding this comment.
好像建模作业都没有跑，后面似乎都还没写哈~~ @yangxingye1
iphysresearch
modified the milestones:
Python/Numpy/Pandas HW completed,
Leetcode HW finished
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