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# Untitled

a guest Aug 18th, 2019 68 Never
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1. def search(mas, Id, pos):
2.     l = 0
3.     r = len(mas)
4.
5.     while (r - l > 1):
6.         m = (r + l) // 2
7.         if (mas[m][0] < Id or (mas[m][0] == Id and mas[m][1] < pos)):
8.             l = m
9.         else:
10.             r = m
11.
12.     for i in range(l, r + 1):
13.         if (mas[i][0] == Id and mas[i][1] == pos):
14.             return i
15.
16.     return -1
17.
18. def doctorAndPatients(patientId, query):
19.     N = len(patientId)
20.     Q = len(query)
21.
22.     assert(1 <= N and N <= 100000)
23.     assert(1 <= Q and Q <= 100000)
24.
25.     for i in range(N):
26.         assert(1 <= patientId[i] and patientId[i] <= 100000)
27.
28.     for i in range(Q):
29.         assert(0 <= query[i] and query[i] < N)
30.
31.     mas = []
32.     res = []
33.
34.     for i in range(N):
35.         mas.append((patientId[i], i))
36.
37.     mas.sort()
38.
39.     print(mas)
40.
41.     for i in range(Q):
42.         pos = search(mas, patientId[query[i]], query[i])
43.         if (pos + 1 < N and mas[pos + 1][0] == mas[pos][0]):
44.             res.append(mas[pos + 1][1] - mas[pos][1])
45.         else:
46.             res.append(-1)
47.
48.     return res
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