def minAbsoluteSumDiff(self, nums1: List[int], nums2: List[int]) -> int:
n = len(nums1)
chazhi = [abs(nums1[i] - nums2[i]) for i in range(n)]
sum_chazhi = sum(chazhi)
# print(chazhi)
nums1_copy = sorted(nums1)
# print(nums1_copy)
ans = sum_chazhi
for i in range(n):
idx = bisect.bisect_left(nums1_copy, nums2[i])
if idx == 0:
ans = min(
ans,
sum_chazhi - chazhi[i] + abs(nums2[i] - nums1_copy[0]))
elif idx == n:
ans = min(
ans,
sum_chazhi - chazhi[i] + abs(nums2[i] - nums1_copy[-1]))
else:
ans = min(
ans,
sum_chazhi - chazhi[i] + abs(nums2[i] - nums1_copy[idx]),
sum_chazhi - chazhi[i] +
abs(nums2[i] - nums1_copy[idx - 1]))
return ans % (10**9 + 7)
def maxSumSubmatrix(self, matrix: List[List[int]], k: int) -> int:
"""
思路：
1. 先计算二维前缀和presum
2. 固定上下界，列坐标从左至右扫描，找到presum[j+1][r]-presum[i][l]<=k的最大值，即presum[i][l] >= presum[j+1][r]-k的最大值
我们先将presum[j+1][r]-k有序插入arr中，每次遍历一个值后再arr中二分查找
@param matrix:
@param k:
@return:
"""
m, n = len(matrix), len(matrix[0])
presum = [[0] * (n + 1) for _ in range(m + 1)]
for i in range(m):
for j in range(n):
presum[i + 1][j + 1] = presum[i][j + 1] + presum[i + 1][j] + matrix[i][j] - presum[i][j]
print(presum)
res = float('-inf')
# presum[i][r]-presum[i][l]<=k
# 枚举上行
for i in range(m):
# 枚举下行
for j in range(i, m):
arr = [0]
for r in range(n):
t = presum[j + 1][r + 1] - presum[i][r + 1]
index = bisect.bisect_left(arr, t - k)
if index < len(arr):
res = max(res, t - arr[index])
bisect.insort(arr, t)
return res
def get(self, key):
if key in self.h:
val, freq, clock = self.h[key]
self.key_arr.pop(bisect.bisect_left(self.key_arr, (freq, clock)))
self.h[key] = (val, freq + 1, self.clock)
bisect.insort_left(self.key_arr, (freq + 1, self.clock, key))
self.clock += 1
return val
return -1
def intersection(self, nums1: List[int], nums2: List[int]) -> List[int]:
nums2.sort() # 두번째 집합 정렬
results = set()
for n1 in nums1:
index = bisect.bisect_left(nums2, n1) # 이진 검색으로 일치 여부 판별
if len(nums2) > 0 and index < len(nums2) and n1 == nums2[index]:
results.add(n1)
return results
def ping(self, t):
"""
:type t: int
:rtype: int
"""
from bisect import bisect
self.nums.append(t)
cur_pos = len(self.nums)
prev_pos = bisect.bisect_left(self.nums, t - 3000)
return cur_pos - prev_pos
def get(self, key: str, timestamp: int) -> str:
k = bisect.bisect_left(list(self.storage[key].keys()), timestamp)
print(k, self.storage[key])
return self.storage[key][list(self.storage[key].keys())[k]]
# Your TimeMap object will be instantiated and called as such:
# obj = TimeMap()
# obj.set(key,value,timestamp)
# param_2 = obj.get(key,timestamp)
def maxSlidingWindow(self, nums: List[int], k: int) -> List[int]:
result = []
tmp = sorted(nums[:k])
result.append(tmp[-1])
for i in range(1, len(nums) - k + 1):
tmp.pop(bisect.bisect_left(tmp, nums[i - 1]))
bisect.insort(tmp, nums[i + k - 1])
result.append(tmp[-1])
return result
def medianSlidingWindow(self, nums: List[int], k: int) -> List[float]:
ans = []
length = len(nums)
window = nums[:k]
window.sort()
ans.append(get_mid(window))
for index in range(k, length):
insert_value = nums[index]
remove_value = nums[index - k]
window.remove(remove_value)
window.insert(bisect.bisect_left(window, insert_value),
insert_value)
ans.append(get_mid(window))
return ans
def shortest(self, word1: str, word2: str) -> int:
arr1 = self.dic[word1]
arr2 = self.dic[word2]
res = float('inf')
for i in arr1:
index = bisect.bisect_left(arr2, i)
if index < len(arr2):
res = min(res, abs(i - arr2[index]))
if index > 0:
res = min(res, abs(i - arr2[index - 1]))
if index < len(arr2) - 1:
res = min(res, abs(i - arr2[index + 1]))
return res
# Your WordDistance object will be instantiated and called as such:
# obj = WordDistance(wordsDict)
# param_1 = obj.shortest(word1,word2)
def medianSlidingWindow(self, nums: List[int], k: int) -> List[float]:
result = []
def median(l):
if len(l) % 2 == 1:
return l[len(l) // 2]
else:
return (l[len(l) // 2 - 1] + l[len(l) // 2]) / 2
tmp = sorted(nums[:k])
result.append(median(tmp))
for i in range(1, len(nums) - k + 1):
tmp.pop(bisect.bisect_left(tmp, nums[i - 1]))
bisect.insort(tmp, nums[i + k - 1])
result.append(median(tmp))
return result
def search(self, nums: List[int], target: int) -> int:
# # iterative
# left = 0
# right = len(nums) - 1
# while left <= right:
# mid = left + (right - left) // 2
# if target < nums[mid]:
# right = mid - 1
# elif nums[mid] < target:
# left = mid + 1
# else:
# return mid
# return -1
# 이진 검색 모듈
index = bisect.bisect_left(nums, target)
if index < len(nums) and nums[index] == target:
return index
return -1
def closestRoom(self, rooms: List[List[int]],
queries: List[List[int]]) -> List[int]:
"""
思路：离线化，将查询数组和事物数组排序，降低时间复杂度（写了题解）
@param rooms:
@param queries:
@return:
"""
# from sortedcontainers import SortedSet
m, n = len(rooms), len(queries)
# 将rooms和queries按照size从大到小排序
rooms.sort(key=lambda x: x[1], reverse=True)
index = sorted(range(n), key=lambda i: queries[i][1], reverse=True)
ids = []
j = 0
res = [-1] * n
for i in index:
preferred, minSize = queries[i]
while j < m and rooms[j][1] >= minSize:
bisect.insort(ids, rooms[j][0])
j += 1
if not ids:
continue
k = bisect.bisect_left(ids, preferred)
if k == 0:
res[i] = ids[0]
elif k == len(ids):
res[i] = ids[-1]
else:
if abs(ids[k] - preferred) < abs(ids[k - 1] - preferred):
res[i] = ids[k]
else:
res[i] = ids[k - 1]
return res
def grade(score, breakpoints=[60, 70, 80, 90], grades='FDCBA'):
i = bisect.bisect_left(breakpoints, score)
print(breakpoints, score, i)
return i
def index(a, x):
i = bisect.bisect_left(a, x)
return i
from bisect import bisect
if __name__ =='__main__':
re = []
for _ in range(int(input())):
co = [int(i) for i in input().split(',')]
re.append(co)
p = sorted([[j, i] for i, (j, _) in enumerate(re)])
# 【区间起点坐标，下标】组合并排序
q = [bisect.bisect_left(p, [j, 0]) for _, j in re]
# 用【终点坐标，0】查找可以往左插入的坐标，写成这样是为了对应数组P的形式
print( [(p[i][1] if i < len(re) else -1) for i in q])
# 如果下标没有越界就输出下标，否则输出-1
def get(self, index, snap_id):
if snap_id in self.snapshot[index]:
return self.snapshot[index][snap_id]
else:
key = bisect.bisect_left(list(self.snapshot[index].keys()))
return self.snapshot[index][key]
breakpoints = [30, 44, 66, 75, 85]
def grade(total):
return grades[bisect(breakpoints, total)]
grade_map = map(grade, [33, 99, 77, 44, 12, 88])
grade_map
list(grade_map)
#%%
import bisect
import random
random.seed(3)
l = []
for i in range(10):
r = random.randint(1, 50)
pos = bisect.bisect_left(l, r)
bisect.insort_left(l, r)
print('%2d %2d' % (r, pos), l)
#%%
import bisect
import random
random.seed(3)
l = []
for i in range(10):
r = random.randint(1, 50)
pos = bisect.bisect(l, r)
bisect.insort(l, r)
print('%2d %2d' % (r, pos), l)
